Campbell-scientific CR3000 Micrologger Manual do Utilizador

CR3000 Measurement and Control SystemRevision: 5/13 Copyright © 2000 - 2013 Campbell Scientific, Inc.

Table of Contents 107.7.3.1 Numerical Formats... 117 7.7.3.2 Structure...

Section 7. Installation 100 Figure 37: DevConfig OS download window Figure 38: Dialog box confirming OS download 7.6.2.2 Sending OS with Prog

Section 7. Installation 101Program Send (p. 101), this has the benefit of usually (but not always) preserving CR3000 settings. Table 7. Operating

Section 7. Installation 102Clicking the Factory Defaults button on the settings editor will send a command to the device to revert to its factory

Section 7. Installation 103 Figure 40: Summary of CR3000 configuration 7.6.3.1.1 Deployment Tab Illustrated in figure DevConfig Deployment Tab (p

Section 7. Installation 104 Figure 41: DevConfig Deployment tab Datalogger Sub-Tab • Serial Number displays the CR3000 serial number. This set

Section 7. Installation 105• Beacon Interval sets the interval (in seconds) on which the datalogger will broadcast beacon messages on the port spe

Section 7. Installation 106 Figure 42: DevConfig Deployment | ComPorts Settings tab Advanced Sub-Tab • Is Router allows the datalogger to act

Section 7. Installation 107• Files Manager Setting specifies the number of files with the specified extension that will be saved when received fro

Section 7. Installation 108 Figure 44: DevConfig Logger Control tab 7.6.3.2 Settings via CRBasic Some variables in the Status table can be requ

Section 7. Installation 109Campbell Scientific recommends implementing one or both of the provisions described in "Include" File (p. 109)

Table of Contents 117.8.2 Information Services... 171 7.8.2.1 PakBus Over TCP/IP and

Section 7. Installation 110 Figure 46: "Include File" settings via PakBusGraph CRBasicExample1. Usingan"IncludeFile"

Section 7. Installation 111 CRBasicExample2. "IncludeFile"toControlSW12V‐1.'"Include File" "Add-on" Pr

Section 7. Installation 112the BeginProg statement. This allows the "Include" file to act both as an "Include" file and as t

Section 7. Installation 113Caveats • Network Planner aids in, but does not replace, the design process • It aids development of PakBus networks o

Section 7. Installation 1147.7 Programming Programs are created with either Short Cut (p. 467) or CRBasic Editor (p. 114). Programs can be up to

Section 7. Installation 115channels, and processing instructions that compress many common calculations used in CR3000 dataloggers. These four elem

Section 7. Installation 116Note To retain data, Preserve data if no table changed must be selected whether or not CF card (CRD: drive) or Campbe

Section 7. Installation 1177.7.3 Syntax 7.7.3.1 Numerical Formats Four numerical formats are supported by CRBasic. Most common is the use of base-1

Section 7. Installation 118 Table 11. CRBasic Program Structure Declarations Define CR3000 memory usage. Declare constants, variables, aliases, u

Section 7. Installation 119'Define public variables Public RefTemp Public TC(6) 'Define Units Units RefTemp = degC Units TC = Deg

Table of Contents 127.8.12.3 Measurement Rate: 601 to 2000 Hz... 240 7.8.13 String Operations...

Section 7. Installation 120operator is located in the Help files of CRBasic Editor, which is included with LoggerNet, PC400, and RTDAQ datalogger

Section 7. Installation 121variables can be viewed through the integrated keyboard / display or software numeric monitors. Dim variables cannot. Al

Section 7. Installation 122In this example, a For/Next structure with a changing variable is used to specify which elements of the array will hav

Section 7. Installation 123BeginProg Scan() aaa = 3 bbb = 2 ccc = 4 VariableName(aaa,bbb,ccc) = 2.718 NextScan EndProg  Dimens

Section 7. Installation 124 Table 12. Data Types Name: Command or Argument Description / Word Size Where Used Notes Resolution / Range FP2 Cam

Section 7. Installation 125Table 12. Data Types Name: Command or Argument Description / Word Size Where Used Notes Resolution / Range As Boolean

Section 7. Installation 126 DataTable(TableName,True,-1) 'FP2 Data Storage Example Sample(1,Z,FP2) 'IEEE4 / Float Data Storage E

Section 7. Installation 127Variable Initialization By default, variables are set equal to zero at the time the datalogger program compiles. Variab

Section 7. Installation 128 CRBasicExample12. UsingtheConstDeclarationPublic PTempC, PTempF Const CtoF_Mult = 1.8 Const CtoF_Offset = 32

Section 7. Installation 129Table 13. Predefined Constants and Reserved Words mv50cR mv500c mv7_5 mv7_5c mvX10500 mv50R NSEC PROG SCAN mvX1500 S

Table of Contents 138.1.2.6.2 Ground Reference Offset Voltage ... 289 8.1.2.6.3 Background Calibration...

Section 7. Installation 130 CRBasicExample13. Foreign‐LanguageSupport‘Declare a constant to concatenate six non-English characters Const PT

Section 7. Installation 131• name of the CRBasic program running in the datalogger • name of the data table (limited to 20 characters) • alphanu

Section 7. Installation 132 Table 15. Typical Data Table TOA5 CR3000 CR3000 1048 CR3000.Std.13.06 CPU:Data.cr3 35723 OneMin TIMESTAMP RE

Section 7. Installation 133'Define Data Tables DataTable(OneMin,True,-1) DataInterval(0,1,Min,10) Average(1,Batt_Volt,FP2,False) Average

Section 7. Installation 134• Size-Table size is the number of records to store in a table before new data begins overwriting old data. If "

Section 7. Installation 135lapse occurs, the SkippedRecords status entry is incremented, and a 16-byte sub-header with time stamp and record number

Section 7. Installation 136Data Output-Processing Instructions Final data storage processing instructions (aka "output processing" inst

Section 7. Installation 1377.7.3.5.2 Subroutines Read More! See Subroutines (p. 192) for more information on programming with subroutines. Subrouti

Section 7. Installation 138Instructions or commands that are handled by each sequencer are listed in table Task Processes (p. 138). The measureme

Section 7. Installation 139the sequence in which the instructions are executed may not be in the order in which they appear in the program. Therefo

Table of Contents 148.2.4.3 Component-Built Relays... 334 8.2.5 Analog Control / Output Devices ..

Section 7. Installation 140Note Measurement tasks have priority over other tasks such as processing and communication to allow accurate timing n

Section 7. Installation 141Table 19. Program Timing Instructions Instructions General Guidelines Syntax Form SubScan / NextSubScan Use when measur

Section 7. Installation 142allows the processing in the scan to lag behind measurements at times without affecting measurement timing. Use of the

Section 7. Installation 143measurement hardware until the main scan, including measurements and processing, is complete. Main Scans Execution of t

Section 7. Installation 144 Figure 49: Sequential-mode scan priority flow diagrams 7.7.3.8 Instructions In addition to BASIC syntax, additional

Section 7. Installation 145PanelTemp is the keyword. Two parameters follow: Dest, a destination variable name in which the temperature value is sto

Section 7. Installation 146Table 20. Rules for Names Name Category1 Maximum Length (number of characters) Allowed characters Data-table name

Section 7. Installation 147 CRBasicExample19. UseofArraysasMultipliersandOffsetsPublic Pressure(3), Mult(3), Offset(3) DataTable(AvgPre

Section 7. Installation 148Note Single-precision float has 24 bits of mantissa. Double precision has a 32-bit extension of the mantissa, resulti

Section 7. Installation 149BeginProg Fa = 0 Fb = 0.125 L = 126 Ba = Fa 'This will set Ba = False (0) Bb = Fb

Table of Contents 158.6.1 DNP3... 369 8.6.1.1 Overview...

Section 7. Installation 150 CRBasicExample22. ConstantstoLONGsorFLOATsPublic I As Long Public A1, A2 Const ID = 10 BeginProg A1 = A2 +

Section 7. Installation 151TRUE is safe, it may not always be the best programming technique. Consider the expression If Condition(1) then... Sinc

Section 7. Installation 152Table 22. Logical Expression Examples If X >= 5 AND Z = 2 then Y = 0 Sets Y = 0 only if both X >= 5 and Z = 2 ar

Section 7. Installation 153'Program BeginProg Scan(1,Sec,0,0) 'Assign strings to String variables Wrd(1) = " ":Wrd(2

Section 7. Installation 154Table 23. Abbreviations of Names of Data Processes Abbreviation Process Name Max Maximum Min Minimum SMM Sample at Max

Section 7. Installation 1557.7.3.11 System Signatures Signatures help assure system integrity and security. The following resources provide inform

Section 7. Installation 1567.8 Programming Resource Library This library of notes and CRBasic code addresses a narrow selection of CR3000 applica

Section 7. Installation 157each with two supporting instructions: • LoadFieldCal() — an optional instruction that evaluates the validity of, and l

Section 7. Installation 158 Mode Variable Interpretation > 0 and  6 calibration in progress < 0 calibration encountered an error 2 cali

Section 7. Installation 159"offset"="y‐intercept"="zero""multiplier"="slope"="gain

Table of Contents 16Section 9. Maintenance ...421 9.1 Moisture Protection...

Section 7. Installation 1605. To simulate conditions for a 30-day, service-calibration, again with desiccated chamber conditions, set variable K

Section 7. Installation 161 Table 25. Calibration Report for Salinity Sensor Parameter Parameter at Deployment Parameter at 7-Day Service mV output

Section 7. Installation 162BeginProg Multiplier = .05 Offset = 0 LoadFieldCal(true) 'Load the CAL File, if po

Section 7. Installation 163 Calibration Report for Pressure Transducer Parameter Measurement Before Zero Measurement After Zero Piezometer Output

Section 7. Installation 164 'AVW200(AVWRC,Com1,0,200,VW(1,1),1,1,1,1000,4000,1,_60Hz,1,0) '<<actual measurement 'inst

Section 7. Installation 1654. When variable CalMode increments to 6, the deployment calibration is complete. Calibrated multiplier is -0.08. Calib

Section 7. Installation 1667.8.1.5.5 Two-Point Slope Only (Option 3) Some measurement applications do not require determination of offset. Wave f

Section 7. Installation 167 Scan(100,mSec,0,0) 'Simulate measurement by exciting channel VX1/EX1 ExciteV(Vx1,mV,0) 'Make t

Section 7. Installation 1684. The zero function of FieldCalStrain() allows the user to set a particular strain as an arbitrary zero, if desired.

Section 7. Installation 169 CRBasicExample31. FieldCalStrain()CalibrationDemonstration'Program to measure quarter bridge strain gage &a

Table of Contents 17Appendix A. CRBasic Programming Instructions ...475 A.1 Program Declarations...

Section 7. Installation 1707.8.1.6.1 Quarter-Bridge Shunt (Option 13) With CRBasic example FieldCalStrain() Calibration Demo (p. 169) sent to the

Section 7. Installation 171 Figure 54: Starting zero procedure Figure 55: Zero procedure finished 7.8.2 Information Services Support of informa

Section 7. Installation 172• PakBus communication over TCP/IP. • Callback (datalogger-initiated communication) using the CRBasic TCPOpen() inst

Section 7. Installation 173 Figure 56: Preconfigured HTML Home Page 7.8.2.3 Custom HTTP Web Server Although the default home page cannot be acces

Section 7. Installation 174 Figure 57: Home page created using WebPageBegin() instruction Figure 58: Customized numeric-monitor web page

Section 7. Installation 175 CRBasicExample32. HTML'NOTE: Lines ending with "+" are wrapped to the next line to fit on the print

Section 7. Installation 176BeginProg Scan(1,Sec,3,0) PanelTemp(RefTemp,250) RealTime(Time()) Minutes = FormatFloat(Time(5),"%0

Section 7. Installation 177 7.8.2.9 Micro-Serial Server The CR3000 can be configured to allow serial communication over a TCP/IP port. This is usef

Section 7. Installation 178• Programmed mode automates much of the SDI-12 protocol and provides for data recording. 7.8.3.1 SDI-12 Transparent

Section 7. Installation 179 7.8.3.1.1 SDI-12 Transparent Mode Commands Commands have three components: Sensoraddress(a)–asinglecharacter,and

Table of Contents 18A.17 Modem Control ... 524 A.18 SCADA ...

Section 7. Installation 180Table 27. Standard SDI-12 Command and Response Set Command Name Command Syntax1 Response2 Start Concurrent Measurement

Section 7. Installation 181Serial number = 101 Start Measurement Commands (aM! & aC!) A measurement is initiated with M! or C! commands. The

Section 7. Installation 182Send Data Commands (aD0! to aD9!) These commands requests data from the sensor. They are normally issued automaticall

Section 7. Installation 183is programmed with the M! command (note that the SDI-12 address is a separate instruction parameter), the CR3000 issues

Section 7. Installation 184Table 28. SDI12Recorder() Commands SDIRecorder() Instruction SDICommand Entry Actions Internal to CR3000 and Sensor

Section 7. Installation 185 Scan(5,Sec,0,0) 'Non-SDI-12 measurements here NextScan SlowSequence Scan(5,Min,0,0) SDI12Recor

Section 7. Installation 186 CRBasicExample33. UsingAlternateConcurrentCommand(aC)'Code to use when back to back SDI-12 concurrent m

Section 7. Installation 187 Else 'C!/C command sequence complete Move(Temp_Meas(X),1,Temp_Tmp(X),1) 'Copy measurements t

Section 7. Installation 188 SlowSequence Do 'Note SDI12SensorSetup / SDI12SensorResponse must be renewed 'after each s

Section 7. Installation 189 CRBasicExample35. UsinganSDI‐12ExtendedCommand'SDI-12 extended command "XT23.61!" sent to CH200

Table of Contents 19F.8.4 Telephone... 570 F.8.5 Private Network Radi

Section 7. Installation 190 CRBasicExample36. SDI‐12SensorSetupPublic PTemp, batt_volt Public Source(10) BeginProg Scan(5,Sec,0,0)

Section 7. Installation 191Example: Probe: Water Content Power Usage: • Quiescent: 0.25 mA • Measurement: 120 mA • Measurement Time: 15 s • Act

Section 7. Installation 192 7.8.4 Subroutines A subroutine is a group of programming instructions that is called by, but runs outside of, the mai

Section 7. Installation 193'Global variables (Used only outside subroutine by choice) 'Declare Counter in the Main Scan. Public counter(2

Section 7. Installation 194 Table 31. OutputOpt Options Option Description (WVc() is the Output Array) 0 WVc(1): Mean horizontal wind speed (S)

Section 7. Installation 195Standard deviation of horizontal wind fluctuations from sub-intervals is calculated as follows: where: is the standard

Section 7. Installation 196 Figure 60: Mean wind-vector graph where for polar sensors: or, in the case of orthogonal sensors: Resultant mea

Section 7. Installation 197Standard Deviation of Direction Figure 61: Standard Deviation of Direction The Taylor Series for the Cosine function, t

Section 7. Installation 198and have never been greater than a few degrees. The final form is arrived at by converting from radians to degrees (5

Section 7. Installation 199SubMenu() / EndSubMenu Definesthebeginningandendofasecond‐levelmenu.Note SubMenu() label must be at least 6 ch

Table of Contents 20Figure 41: DevConfig Deployment tab ... 104 Figure 42: DevConfig Deployment

Section 7. Installation 200 Figure 65: Custom menu example — Predefined-notes pick list Figure 66: Custom menu example — Free-Entry notes wind

Section 7. Installation 201 Figure 69: Custom menu example — control-LED pick list Figure 70: Custom menu example — control-LED Boolean pick lis

Section 7. Installation 202Const Off = false 'Assign "Off" as Boolean False Public StartFlag As Boolea

Section 7. Installation 203 'Measure Two Thermocouples TCDiff(TCTemp(),2,mV1000C,1,TypeT,RefT

Section 7. Installation 204Note Do not confuse CRBasic files with .DLD extensions with files of .DLD type used by legacy Campbell Scientific dat

Section 7. Installation 205#ElseIf LoggerType = CR800 Const SourcSerialPort = Com1 #Else Const SourcSerialPort = Com1 #EndIf 'Public Vari

Section 7. Installation 2067.8.8.1 Introduction Serial denotes transmission of bits (1s and 0s) sequentially, or "serially." A byte is

Section 7. Installation 2077.8.8.2 I/O Ports The CR3000 supports two-way serial communication with other instruments through ports listed in table

Section 7. Installation 208Note If an instrument or sensor optionally supports SDI-12, Modbus, or DNP3, consider using these protocols before pr

Section 7. Installation 209MarksandSpacesRS‐232signallevelsareinvertedlogiccomparedtoTTL.Thedifferentlevelsarecalledmarksandspac

Table of Contents 21Figure 97: Panel-temperature gradients (high temperature to low)... 310 Figure 98: Input error calculation...

Section 7. Installation 210• BaudRrate — Baud rate mismatch is frequently a problem when developing a new application. Check for matching baud r

Section 7. Installation 211• Buffer-size margin (one extra record + one byte). SerialOutBlock()1,3 • Binary • Can run in pipeline mode inside th

Section 7. Installation 212• Does the record have a delimiter character, e.g. ",", spaces, or tabs? These delimiters are useful for pa

Section 7. Installation 2137.8.8.5.3 Output Programming Basics Applications with the purpose of transmitting data to another device usually include

Section 7. Installation 214Example (humidity, temperature, and pressure sensor): SerialInString = "RH= 60.5 %RH T= 23.7 °C Tdf= 15.6 °C Td=

Section 7. Installation 215• String declarations: String variables are memory intensive. Determine how large strings are and declare variables jus

Section 7. Installation 216 Scan(5,Sec, 3, 0) 'Serial Out Code 'Transmits string "*27.435,56.789#" out COM1 Ser

Section 7. Installation 217 Figure 71: HyperTerminal New Connection description Figure 72: HyperTerminal Connect-To settings

Section 7. Installation 218 Figure 73: HyperTerminal COM-Port Settings Tab Click File | Properties | Settings | ASCII Setup... and set as shown.

Section 7. Installation 2197.8.8.6.2 Create Send Text File Create a file from which to send a serial string. The file shown in figure HyperTerminal

Table of Contents 22Table 10. Formats for Entering Numbers in CRBasic... 117 Table 11. CRBasic Program Structure ...

Section 7. Installation 220recognize the C command. CR3000 dataloggers, however, require custom programming to output and accept these same ASCII

Section 7. Installation 221'One Minute Data Table DataTable(OneMinTable,true,-1) OpenInterval 'sets interval same as foun

Section 7. Installation 222 'If it is a leap year, use this section. If (LeapYear = True) Then Select Case DOY Case Is < 32

Section 7. Installation 223 Case Is < 121 Month = 4 Date = DOY + -90 Case Is < 152 Month = 5 Date

Section 7. Installation 224 '///////////////Serial Time Set Input Section/////////////// 'Accept old C command -- [2008:028:10:3

Section 7. Installation 2257.8.8.7 Q & A Q: I am writing a CR3000 program to transmit a serial command that contains a null character. The str

Section 7. Installation 226then TempData(1,1,2) = "TOP", TempData(1,1,3) = "OP", _ TempData(1,1,1) = "STOP" To ha

Section 7. Installation 227A: A common caution is, “The destination variable should not be used in more than one sequence to avoid using the variab

Section 7. Installation 228 Figure 77: Data from TrigVar program CRBasicExample42. UsingTrigVartoTriggerDataStorage'In this exam

Section 7. Installation 229• Placing a time stamp in a second position in a record. • Accessing a time stamp from a data table and subsequently s

Table of Contents 23Table 64. Resistive-Bridge Circuits with Current Excitation1... 302 Table 65. Analog Input-Voltage Range and Basi

Section 7. Installation 230'Program BeginProg Scan(1,Sec,0,0) TimeVar = FirstTable.TimeStamp CallTable FirstTable CallTable Se

Section 7. Installation 231'Declarations Public rTime(9) As Long '(or Float) Public rTime2(7) As Long

Section 7. Installation 232 '3) sample time to three string forms using the TableName.FieldName notation. 'Form 1: "mm/dd/y

Section 7. Installation 233Variable aliasing (p. 129) can be employed in the CRBasic program to make the data more understandable. Figure 78: Al

Section 7. Installation 234 Figure 80: Bool8 data from bit-shift example (PC data file) CRBasicExample47. ProgrammingwithBool8andabit‐

Section 7. Installation 235 'If bit in OR bit in The result 'Flags Is Bin/Hex Is Is '---------- ---------

Section 7. Installation 236 FlagsBool8(1) = Flags AND &HFF 'AND 1st 8 bits of "Flags" & 11111111 FlagsBo

Section 7. Installation 237 Table 34. TABLE. Summary of Analog Voltage Measurement Rates Maximum Rate 100 Hz 600 Hz 2000 Hz Number of Simultaneo

Section 7. Installation 238 BeginProg Scan(1,Sec,0,0)'<<<<Measurement rate is determined by Interval and Units VoltSe(Fast

Section 7. Installation 239Many variations of this 200-Hz measurement program are possible to achieve other burst rates and duty cycles. The SubSca

Table of Contents 24Table 117. CommsMemFree(1) Defaults and Use Example, TLS Active.. 437 Table 118. CR3000 Terminal Commands...

Section 7. Installation 240• One more way to view sub-scans is that they are a convenient (and only) way to put a loop around a set of measureme

Section 7. Installation 241 200 Table 39. Parameters for Analog Burst Mode (601 to 2000 Hz) CRBasic Analog Voltage Input Parameters Description whe

Section 7. Installation 2427.8.13.1 String Operators The table String Operators (p. 242) list and describes available string operators. String o

Section 7. Installation 243 Table 41. String Concatenation Examples Expression Comments Result Str(1) = 5.4 + 3 + " Volts" Add floats,

Section 7. Installation 2447.8.13.4 Inserting String Characters CRBasicExample48. InsertingStringCharactersObjective: Use MoveBytes() to c

Section 7. Installation 2457.8.13.7 Formatting Strings Table 45. Formatting Strings Examples Expression Result Str(1)=123e4 Str(2)=FormatFloat(123

Section 7. Installation 246'Data Tables 'Table output on two intervals depending on condition. 'note the parenthesis around the Tr

Section 7. Installation 247scan times, two separate scans can be used with logic to jump between them. If a PulseCount() is used in both scans, th

Section 7. Installation 248 'function Scan(1,Sec,0,0) ProgSig = Status.ProgSignature

Section 7. Installation 249'Declare Public (viewable) Variables Public Batt_Volt As FLOAT 'Declared as Float Publi

Table of Contents 25CRBasic Example 4. Inserting Comments... 115 CRBasic Example 5. Load binary informa

Section 7. Installation 250 Minimum(1,AirTemp_C,FP2,0,False) 'Stores temperature minimum in low

Section 7. Installation 251 'Count how many times the DataEvent “DeltaT_C>=3” has occurred. The 'TableName.EventCount syntax i

Section 7. Installation 252'Main Program BeginProg 'Begin executable section of program Scan(1,Sec

Section 7. Installation 253'Declare Variables Public PTemp, Batt_Volt, Level, TimeIntoTest Public Counter(10) Public Flag(8) As Boolean &apos

Section 7. Installation 254 '1 Minute Data Interval Scan(1,Min,0,70) Counter(4) = Counter(4) + 1 Battery(Batt_volt)

Section 7. Installation 255 '10 Minute Data Interval Scan(10,Min,0,0) Counter(6) = Counter(6) + 1 Battery(Batt_volt)

Section 7. Installation 256'Begin Program BeginProg 'Load scaling array (multipliers and offsets) Mult(1) = 1.8 : Offset(1) = 32

Section 7. Installation 257'Declare Units Units PTemp_C = deg C Units AirTemp_C = deg C Units DeltaT_C = deg C 'Declare Output Table --

Section 7. Installation 258'Declare Event Driven Data Table DataTable(Event,True,1000) DataEvent(0,DeltaT_C>=3,DeltaT_C<3,0) Sampl

Section 7. Installation 259non-standard types. Measured temperatures are compared against the ITS-90 scale, a temperature instrumentation-calibrati

Table of Contents 26CRBasic Example 58. BeginProg / Scan / NextScan / EndProg Syntax ... 257 CRBasic Example 59. PT100 in Four-Wire Half-Bridge..

Section 7. Installation 260Table 47. PRTCalc() Type-Code-1 Sensor IEC 60751:2008 (IEC 751), alpha = 0.00385. Now internationally adopted and wri

Section 7. Installation 261Table 49. PRTCalc() Type-Code-3 Sensor US Industrial Standard, alpha = 0.00391 (Reference: OMIL R84 (2003)) Constant Coe

Section 7. Installation 262 Table 52. PRTCalc() Type-Code-6 Sensor Standard ITS-90 SPRT, alpha = 0.003926 (Reference: Minco / Instrunet) Consta

Section 7. Installation 263the measurement range is -10 to 40°C. The length of the cable from the CR3000 and the bridge resistors to the PRT is 50

Section 7. Installation 264calibrated multiplier. The 10 ppm/°C temperature coefficient of the fixed resistor will limit the error due to its ch

Section 7. Installation 2657.8.18.2.3 PT100 in Three-Wire Half-Bridge Example shows: • How to measure a PRT in a three-wire half-bridge configurat

Section 7. Installation 266 Figure 82: PT100 in three-wire half-bridge CRBasicExample60. PT100inThree‐wireHalf‐bridge'See FIGURE.

Section 7. Installation 267where, VS=measuredbridge‐outputvoltageVX=excitationvoltageor, X=1000(RS/(RS+R1)‐R3/(R2+R3)).With reference

Section 7. Installation 268 Figure 83: PT100 in four-wire full-bridge CRBasicExample61. PT100inFour‐WireFull‐Bridge'See FIGURE. PT

Section 7. Installation 269Example PRT Specifications: • Alpha = 0.00392 (PRTType 2) Excitation Current Excitation current should be optimized su

27Section 1. Introduction 1.1 HELLO Whether in extreme cold in Antarctica, scorching heat in Death Valley, salt spray from the Pacific, micro-grav

Section 7. Installation 270Conclusion:LimitisimposedbytheresistanceofthePRT.Ifresistanceof5PRTsisexpectedtosumbelow5000Ω(b

Section 7. Installation 2717.8.19 Running Average The AvgRun() instruction calculates a running average of a measurement or calculated value. A ru

Section 7. Installation 272Inputfrequencytorunningaverage(normalizedfrequency)=100/250=0.4Sin(0.4π)/(0.4π)=0.757(orreadfromf

Section 7. Installation 273 Figure 86: Running-average frequency response Figure 87: Running-average signal attenuation 7.8.20 Writing High-Fre

Section 7. Installation 2747.8.20.1 TableFile() with Option 64 Option 64 has been added as a format option for the CRBasic instruction TableFile(

Section 7. Installation 275DataTable(TableName,TriggerVariable,Size) TableFile(FileName...LastFileName) 'Output processing instructions go

Section 7. Installation 276data to be continuously and more quickly written to the card in 1 KB blocks. TOB3 binary format copies data directly

Section 7. Installation 277Q: Which CF memory card should I use? A: Campbell Scientific recommends and supports only the use of FMJ brand CF cards.

Section 7. Installation 278card must be inserted before the data table in datalogger CPU memory rings2, or data will be overwritten and lost. Fo

279Section 8. Operation 8.1 Measurements Several features give the CR3000 the flexibility to measure many sensor types. Contact a Campbell Scient

Section 1. Introduction 28Italic — titles of publications, software, sections, tables, figures, and examples. Bold italic — CRBasic instruction p

Section 8. Operation 280basic code requirements. The DataTime() instruction is a more recent introduction that facilitates time stamping with sys

Section 8. Operation 281instructions BrFull(), BrFull6W(), BrHalf4W(), TCDiff(), VoltDiff () and Resistance () instructions instructions perform DI

Section 8. Operation 282is reduced to ±2.5 Vdc, whereas input limits are always ±5 Vdc. Hence for non-negligible DIFF signals, "input limits

Section 8. Operation 283Sensors with a low signal-to-noise ratio, such as thermocouples, should normally be measured differentially. However, if th

Section 8. Operation 284 Table 53. CRBasic Parameters Varying Measurement Sequence and Timing CRBasic Parameter Description MeasOfs Correct gro

Section 8. Operation 285=±2mVand OffsetError=1.5•Differential(DF)Resolution+1µV=(1.5•167µV)+1µV=2515µV=0.252mVTherefore

Section 8. Operation 2868.1.2.5 Voltage Range In general, a voltage measurement should use the smallest fixed-input range that will accommodate t

Section 8. Operation 287mV and -1090 mV. The CR3000 indicates a measurement over-range by returning a NAN (not a number) for the measurement. 8.1.

Section 8. Operation 288 Table 55. Analog Measurements and Offset Voltage Compensation CRBasic Voltage Measurement Instruction Input Reversa

Section 8. Operation 289excitation "on time" for each polarity is exactly the same to ensure that ionic sensors do not polarize with repe

29Section 2. Cautionary Statements The CR3000 is a rugged instrument and will give years of reliable service if a few precautions are observed: •

Section 8. Operation 2908.1.2.7.1 ac Power Line Noise Rejection Grid or mains power (50 or 60 Hz, 230 or 120 Vac) can induce electrical noise at

Section 8. Operation 291approximately 170 µs, leaving a maximum input-settling time of approximately 8160 µs (8333 µs - 170 µs). If the maximum in

Section 8. Operation 292The CR3000 delays after switching to a channel to allow the input to settle before initiating the measurement. The Settl

Section 8. Operation 293• When relatively large resistances are measured (> 1000 ohms), or relatively long cable lengths are used (> 50 foot

Section 8. Operation 294 BrFull(PT(7),1,mV20,1,Vx1,1,2500,True,True,700,250,1.0,0) BrFull(PT(8),1,mV20,1,Vx1,1,2500,True,True,800,250,1.0,

Section 8. Operation 2958.1.2.9 Self-Calibration Read More! Related topics can be found in Offset Voltage Compensation (p. 287). The CR3000 self-ca

Section 8. Operation 296If this rate of update for measurement channels is too slow, the Calibrate() instruction can be used. The Calibrate() ins

Section 8. Operation 297Table 61. Status Table Calibration Entries Descriptions of Status Table Elements Status Table Element Differential (Diff) S

Section 8. Operation 298Table 61. Status Table Calibration Entries Descriptions of Status Table Elements Status Table Element Differential (Diff)

Section 8. Operation 299Table 62. Calibrate() Instruction Results Descriptions of Array Elements Array Cal() Element Differential (Diff) Single-End

Warranty The CR3000 Micrologger(R) is warranted for three (3) years subject to this limited warranty: “PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC

Section 2. Cautionary Statements 30 

Section 8. Operation 3008.1.3 Resistance Measurements Many sensors detect phenomena by way of change in a resistive circuit. Thermistors, strain

Section 8. Operation 301Table 63. Resistive-Bridge Circuits with Voltage Excitation Resistive-Bridge Type and Circuit Diagram CRBasic Instruction a

Section 8. Operation 302Table 63. Resistive-Bridge Circuits with Voltage Excitation Resistive-Bridge Type and Circuit Diagram CRBasic Instruction

Section 8. Operation 303'Main Program BeginProg R2 = 1000 'Resistance of R2 R3 = 1000

Section 8. Operation 304• Offset = 3 x Basic Resolution + 5.0 µV if the measurement is of a single-ended input channel Thefollowingtablelists

Section 8. Operation 305 Figure 94: Deriving ∆V1 8.1.3.3 Strain Calculations Read More! The FieldCalStrain() Demonstration Program (p. 158) sect

Section 8. Operation 306Table 66. StrainCalc() Instruction Equations StrainCalc() BrConfig Code Configuration 3 Half-bridge strain gage. One g

Section 8. Operation 307Scientific strongly encourages any user of thermocouples to carefully evaluate Error Analysis (p. 307). An introduction to

Section 8. Operation 308specification of 0.1°C for temperatures between 0 and 70°C. Below freezing and at higher temperatures, this specification

Section 8. Operation 309 Figure 95: Panel-temperature error summary

31Section 3. Initial Inspection • The CR3000 datalogger ship with, o 1 each pn 8125 small, flat-bladed screwdriver o 1 each pn 1113 large, flat

Section 8. Operation 310 Figure 96: Panel-temperature gradients (low temperature to high) Figure 97: Panel-temperature gradients (high tempera

Section 8. Operation 311 8.1.4.1.2 Thermocouple Limits of Error The standard reference that lists thermocouple output voltage as a function of temp

Section 8. Operation 3128.1.4.1.3 Thermocouple Voltage Measurement Error Thermocouple outputs are extremely small — 10 to 70 µV per °C. Unless h

Section 8. Operation 313 Figure 98: Input error calculation Input Error Examples: Type T Thermocouple @ 45°C These examples demonstrate that in t

Section 8. Operation 314Error Calculations with Input Reversal = True µVerror=gainterm+offsetterm=(830.7µV*0.07%)+(1.5*0.67µV+

Section 8. Operation 315Error Calculations with Input Reversal = False µVerror=gainterm+offsetterm=(44500µV*0.07%)+(3*6.67µV+2.0

Section 8. Operation 316Table 69. Limits of Error on CR3000 Thermocouple Polynomials TC Type Range °C Limits of Error °C Relative to NIST Stan

Section 8. Operation 317The magnitude of the errors discussed in Error Analysis (p. 307) show that the greatest sources of error in a thermocouple

Section 8. Operation 318greater than the extension-wire range. In any case, errors can arise if temperature gradients exist within the junction b

Section 8. Operation 319 Figure 100: Pulse-sensor output signal types Figure 101: Switch-closure pulse sensor Table 72. Pulse-Input Channels a

Section 3. Initial Inspection 32 

Section 8. Operation 3208.1.5.1 Pulse-Input Channels (P1 - P4) Read More! Review pulse counter specifications at CR3000 Specifications. Review p

Section 8. Operation 3218.1.5.1.2 Low-Level ac (P1 - P4) Rotating magnetic-pickup sensors commonly generate ac output voltages ranging from thousan

Section 8. Operation 322Edge Counting (C1 - C8) Rising edges (transitions from <1.5 Vdc to >3.5 Vdc) or falling edges (transitions from >

Section 8. Operation 323calibrated in terms of frequency (Hz (p. 458) ) so are usually measured using the PulseCount() frequency option. • Accurac

Section 8. Operation 3248.1.5.3.1 Frequency Resolution Frequency resolution of a PulseCount() frequency measurement is calculated as where: FR

Section 8. Operation 325 Table 74. Frequency Resolution Comparison 0.5 s Scan 5.0 s Scan PulseCount(), POption=1 FR = 2 Hz FR = 0.2 Hz TimerIO

Section 8. Operation 326Input filters, however, attenuate the amplitude (voltage) of the signal. The amount of attenuation is a function of the

Section 8. Operation 327 Figure 104: Amplitude reduction of pulse-count waveform (before and after 1-µs time constant filter) 8.1.5.4.3 Switch Bo

Section 8. Operation 328input conditioning circuitry. The threshold allows direct connection of standard digital signals, but it is not recommend

Section 8. Operation 3298.1.8 RS-232 and TTL Read More! Serial Input / Output Instructions (p. 512) and Serial I/O (p. 205). The CR3000 can usually

33Section 4. Quickstart Tutorial This tutorial presents an introduction to CR3000 data acquisition. 4.1 Primer – CR3000 Data-Acquisition Data acq

Section 8. Operation 3308.1.10.1 Analog Sensor Cables Cable length in analog sensors is most likely to affect the signal settling time. For more

Section 8. Operation 331multiple CR3000s. Techniques outlined below enable network administrators to synchronize CR3000 clocks and measurements in

Section 8. Operation 332With any synching method, care should be taken as to when and how things are executed. Nudging the clock can cause skippe

Section 8. Operation 3338.2.4 Control Outputs Controlling power to an external device is a common function of the CR3000. On-board control termina

Section 8. Operation 3348.2.4.3 Component-Built Relays Figure Relay Driver Circuit with Relay (p. 334) shows a typical relay driver circuit in co

Section 8. Operation 3358.2.5 Analog Control / Output Devices The CR3000 can scale measured or processed values and transfer these values in digita

Section 8. Operation 336 Table 78. CR3000 Memory Allocation Memory Sector Comments Internal battery-backed SRAM1 4 MB* See table CR3000 SRAM

Section 8. Operation 337 Table 79. CR3000 SRAM Memory Use Comments Static Memory Operational memory used by the operating system regardles

Section 8. Operation 3388.3.1.1 Data Storage Data-storage drives are listed in table CR3000 Memory Drives (p. 338). Data-table SRAM and the CPU:

Section 8. Operation 339configured using DevConfig settings or SetStatus() instruction in a CRBasic program. Partition USR: drive to at least 11264

Section 4. Quickstart Tutorial 34modems, radios, satellite transceivers, and TCP/IP network modems are available for the most demanding applicati

Section 8. Operation 3408.3.1.1.5 CRD: Drive CRD: drive uses CompactFlash® (CF) memory cards exclusively. Its primary purpose is the storage of b

Section 8. Operation 341then copy a small file to the card, and then delete the file (while still in the PC). Copying the file to the freshly form

Section 8. Operation 342Table 81. TableFile()-Instruction Data-File Formats Elements Included TableFile() Format Option Base File Format Heade

Section 8. Operation 343<os-version>CR1000.Std.20</os-version> <dld-name>CPU:file format.CR1</dld-name> </environment>

Section 8. Operation 344willberepresentedbyfourfieldnames:“values(1,1)”,“values(1,2)”,“values(2,1)”,and“values(2,2)”.Scalar(non‐arr

Section 8. Operation 345Read More! More information on string variable-memory use and conservation is available in String Operations (p. 241). 8.3

Section 8. Operation 346associated with the program are erased. Drive formatting is performed through datalogger support software (p. 571) Format

Section 8. Operation 347Table 82. File-Control Functions File-Control Functions Accessed Through Create a data file from a data table TableFile()6

Section 8. Operation 348Table 83. CR3000 File Attributes Attribute Function Attribute for Programs Sent to CR3000 with: Run Now Runs only when

Section 8. Operation 349in the file automatically uploading to the CR3000 and running. Powerup.ini options also allow final-data storage managemen

Section 4. Quickstart Tutorial 35 Figure 2: Wiring panel 4.1.2.2 Power Supply The CR3000 is powered by a nominal 12 Vdc source. Acceptable power

Section 8. Operation 350powerup.ini file in the CR3000 with the integrated keyboard / display to see what the CR3000 actually sees. Comments can

Section 8. Operation 351• Command 6 Copies the specified program to the designated drive and sets the run attribute of the program to Run Now. Da

Section 8. Operation 352 Powerup.ini Example 'Run a program file now, erase data now. 14,run.cr1,cpu:  8.3.4.4 File Management Q & A Q:

Section 8. Operation 353Table 85. File System Error Codes Error Code Description 16 Root directory is full 17 Bad file ptr (pointer) or device not

Section 8. Operation 3548.4 Telecommunications and Data Retrieval Telecommunications, in the context of CR3000 operation, is the movement of info

Section 8. Operation 355Satellite System Satellite Transceiver RF CompactFlash® (CF) card Direct connect through CF module connected to periphera

Section 8. Operation 356Though usually unnoticed, a short burst of SDC communication occurs at power-up and other times when the datalogger is re

Section 8. Operation 357• Leaf nodes are measurement devices at the end of a branch of the PakBus® web. o Leaf nodes can be linked to any router.

Section 8. Operation 358Table 87. PakBus Leaf-Node and Router Device Configuration Network Device Description PakBus Leaf Node PakBus Router PakB

Section 8. Operation 359• hello-request • CVI • beacon To form a network, nodes must establish links with neighbors (neighbors are adjacent node

Section 4. Quickstart Tutorial 364.1.3 Sensors Most electronic sensors, whether or not manufactured or sold by Campbell Scientific, can be interf

Section 8. Operation 3608.5.3.6 Maintaining Links Links are maintained by means of the CVI (communications verification interval). The CVI can be

Section 8. Operation 361Hence, the size of the responses to the file-receive commands that the CR3000 sends is governed by the Max Packet Size sett

Section 8. Operation 362 Figure 112: Flat Map Figure 113: Tree Map 8.5.6 PakBus LAN Example To demonstrate PakBus® networking, a small LAN (L

Section 8. Operation 363 Figure 114: Configuration and wiring of PakBus LAN 8.5.6.2 LAN Setup Configure CR3000s before connecting them to the LAN

Section 8. Operation 364 Figure 115: DevConfig Deployment | Datalogger tab Figure 116: DevConfig Deployment | ComPorts Settings tab

Section 8. Operation 365 Figure 117: DevConfig Deployment | Advanced tab Table 89. PakBus-LAN Example Datalogger-Communications Settings Softwar

Section 8. Operation 3668.5.6.3 LoggerNet Setup Figure 118: LoggerNet Network-Map Setup: COM port In LoggerNet Setup, click Add Root and add a

Section 8. Operation 367 Figure 119: LoggerNet Network-Map Setup: PakBusPort As shown in figure LoggerNet Device Map Setup: PakBusPort (p. 367),

Section 8. Operation 368 As shown in figure LoggerNet Device-Map Setup: Dataloggers (p. 367), set the PakBus® address for each CR3000 as listed i

Section 8. Operation 369Note Setting the encryption key for a PakBus port device will force all messages it sends to use encryption. 8.6 Alterna

Section 4. Quickstart Tutorial 37 Table 1. Single-Ended and Differential Input Channels Differential Channel Single-Ended Channel 1H 1 1L 2 2H

Section 8. Operation 370 Table 90. DNP3 Implementation — Data Types Required to Store Data in Public Tables for Object Groups Data Type Group D

Section 8. Operation 3718.6.1.2.3 Programming for Data-Acquisition As shown in CRBasic example Implementation of DNP3 (p. 371), program the CR3000

Section 8. Operation 372 Scan(1,Sec,1,0) 'Wind Speed & Direction Sensor measurements WS_ms and WindDir: PulseCount(WindSpd,1,1,

Section 8. Operation 373 Table 91. Modbus to Campbell Scientific Equivalents Modbus Domain Data Form Campbell Scientific Domain Coils Single Bi

Section 8. Operation 374 8.6.2.3 Programming for Modbus 8.6.2.3.1 Declarations Table CRBasic Ports, Flags, Variables, and Modbus Registers (p. 37

Section 8. Operation 3758.6.2.3.3 Addressing (ModbusAddr) Modbus devices have a unique address in each network. Addresses range from 1 to 247. Addr

Section 8. Operation 3768.6.2.5 Modbus over IP Modbus over IP functionality is an option with the CR3000. Contact Campbell Scientific for details

Section 8. Operation 377 Scan(1,Sec,0,0) 'In the case of the CR3000 being the ModBus master then the 'ModbusMaster instruction w

Section 8. Operation 378Four levels of access are available through Basic Access Authentication: • all access denied (Level 0) • all access al

Section 8. Operation 379and arguments and the commands wherein they are used. Parameters and arguments for specific commands are listed in the fol

Section 4. Quickstart Tutorial 38• A specific resistance in a pressure transducer strain gage correlates to a specific water pressure. • A chan

Section 8. Operation 380p2 DataQuery Specifies ending date and/or time when using date-range argument. time expressed in defined format (see Time

Section 8. Operation 381Table 95. BrowseSymbols API Command Parameters uri Optional. Specifies the URI (p. 472) for the data source. When queryin

Section 8. Operation 382is_read_only Boolean value that is set to true if the symbol is considered to be read-only. A value of false would indica

Section 8. Operation 383 <td>BallastLine</td><td>dl:BallastLine</td><td>6</td><td>true</td><t

Section 8. Operation 384 is_read_only="false" can_expand="true"/><symbol name="Public" uri=&qu

Section 8. Operation 385 Table 97. DataQuery API Command Parameters uri Optional. Specifies the URI (p. 472) for data to be queried. Syntax: dl:t

Section 8. Operation 386http://192.168.24.106/?command=DataQuery&uri=dl:MainData.Cond41&format=html&mode=most-recent&p1=70 Respon

Section 8. Operation 387<tr valign="middle" align="center"> <td nowrap>2012-08-21 22:41:50.0</td> <td nowr

Section 8. Operation 388JSON Response When json is entered in the DataQuery format parameter, the response will be formatted as CSIJSON. Followi

Section 8. Operation 389"2012-05-03 19:00:00",2,0,-0.9210536,-0.9679532,-0.9106316,-0.8637322,72.297,0 "2012-05-03 20:00:00",3,

Section 4. Quickstart Tutorial 39 4.1.3.2.2 Current Excitation Resistance can be determined by supplying a precise current and measuring the return

Section 8. Operation 390"SECONDS","NANOSECONDS","RN","","" "","","&quo

Section 8. Operation 391SetValueEx Response The SetValueEx format parameter determines the format of the response.. If a format is not specified,

Section 8. Operation 392 </tr> </table> </body> </html> XML Response When xml is entered in the SetValueEx format par

Section 8. Operation 393 ClockSet Response The ClockSet format parameter determines the format of the response. If a format is not specified, the

Section 8. Operation 394JSON Response When json is entered in the ClockSet format parameter, the response will be formated as CSIJSON (p. 68). F

Section 8. Operation 395time Specifies the current value of the CR3000 real-time clock2. This value will only be valid if the value of outcome is s

Section 8. Operation 396 8.6.3.7 Files Management Web API commands allow a web client to manage files on host CR3000 memory drives. Camera image

Section 8. Operation 397*Done waiting for 100-continue <HTTP/1.1 200 OK <Date: Fri, 2 Dec 2011 05:31:50 <Server: CR1000.Std.25 <Content

Section 8. Operation 398 Table 105. FileControl API Command Parameters action 1 — Compile and run the file specified by file and mark it as the p

Section 8. Operation 399 FileControl Response All output formats contain the following parameters. Any action (for example, 9) that performs a res

Section 4. Quickstart Tutorial 40 Figure 8: Pulse-sensor output signal types 4.1.3.3.2 Pulse-Input Channels Table Pulse-Input Channels and Meas

Section 8. Operation 400Examples: http://192.168.24.106/?command=ListFiles Response:returnsthedrivestructureofthehostCR3000(CPU:,USR:,

Section 8. Operation 401HTML page source: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/ht

Section 8. Operation 402Page source template: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> <html> <head> <titl

Section 8. Operation 403 path="CPU:lights-web.cr1" last_write="yyyy-mm-ddThh:mm:ss.xxx" size="16994" r

Section 8. Operation 404 Table 109. NewestFile API Command Parameters expr Specifies the complete path and wildcard expression for the desired se

Section 8. Operation 405 Table 110. Special Keyboard-Display Key Functions Key Special Function [2] and [8] Navigate up and down through the menu

Section 8. Operation 406 Figure 121: Using the keyboard / display

Section 8. Operation 4078.8.1 Data Display Figure 122: Displaying data with the keyboard / display

Section 8. Operation 4088.8.1.1 Real-Time Tables and Graphs Figure 123: Real-time tables and graphs 8.8.1.2 Real-Time Custom The integrated key

Section 8. Operation 409 Figure 124: Real-time custom

Section 4. Quickstart Tutorial 41result. Some switch-closure sensors may require a pull-up resistor. Consult figure Connecting Switch Closures to

Section 8. Operation 4108.8.1.3 Final-Storage Tables Figure 125: Final-storage tables

Section 8. Operation 4118.8.2 Run/Stop Program Figure 126: Run/Stop Program

Section 8. Operation 4128.8.3 File Display Figure 127: File display 8.8.3.1 File: Edit The CRBasic Editor is recommended for writing and editin

Section 8. Operation 413 Figure 128: File: edit

Section 8. Operation 4148.8.4 PCCard (CF Card) Display Figure 129: PCCard (CF Card) display 8.8.5 Ports and Status Read More! See the appendix

Section 8. Operation 415 8.8.6 Settings Figure 131: Settings 8.8.6.1 Set Time / Date Move the cursor to time element and press Enter to change it

Section 8. Operation 4168.8.7 Configure Display Figure 132: Configure display 8.9 Program and OS File Compression Q: What is Gzip? A: Gzip is t

Section 8. Operation 417Q: Does my CR3000 support Gzip? A: Version 25 of the standard CR3000 operating system supports receipt of Gzip compressed p

Section 8. Operation 418c) When prompted, set the archive format to “Gzip”. d) Select OK. The resultant file names will be of the type “myProgra

Section 8. Operation 4198.10 CF Cards & Records Number The number of records in a data table when CardOut() or TableFile() with Option 64 is us

Section 4. Quickstart Tutorial 42 Figure 11: Use of RS-232 and digital I/O when reading RS-232 devices 4.1.4 Digital I/O Ports The CR3000 has e

Section 8. Operation 420the CPU buffer before final-data storage stops altogether, resulting in a few more records than advertised able to be col

421Section 9. Maintenance Temperature and humidity can affect the performance of the CR3000. The internal lithium battery must be replaced periodi

Section 9. Maintenance 422o Time. Clock will need resetting when the battery is replaced. o Final-storage data tables. A replacement lithium ba

Section 9. Maintenance 423 Figure 134: Remove back cover retainer screw Invert the module onto a non-abrasive surface. Remove the five cover ret

Section 9. Maintenance 424 Figure 135: Remove and replace battery Remove the lithium battery by gently prying it out with a small flat point sc

Section 9. Maintenance 425write this number clearly on the outside of the shipping container. Campbell Scientific's shipping address is: CAMP

Section 9. Maintenance 426 

427Section 10. Troubleshooting Some troubleshooting tools, concepts, and hints are provided here. If a Campbell Scientific system is not operatin

Section 10. Troubleshooting 42810.3.1.1 CompileResults Reports messages generated by the CR3000 at program upload and compile-time. A message wil

Section 10. Troubleshooting 429Table 113. Warning Message Examples Example of Warning Message Meaning Warning: Machine self-calibration failed. I

Section 4. Quickstart Tutorial 43 4.1.5 SDM Channels SDM (Serial Device for Measurement) devices expand the input and output capacity of the CR3000

Section 10. Troubleshooting 430incremented by all events that leave gaps in data, including cycling power to the CR3000. 10.3.1.5 ProgErrors If

Section 10. Troubleshooting 43110.3.1.8.2 Watchdoginfo.txt File A CPU: WatchdogInfo.txt file is created on the CPU: drive when the CR3000 experienc

Section 10. Troubleshooting 432results can be difficult due to the multitasking nature of the logger, but it can be a useful tool for fine tuning

Section 10. Troubleshooting 43310.3.4.3 Data Types, NAN, and ±INF NAN and ±INF are presented differently depending on the declared-variable data ty

Section 10. Troubleshooting 434 0 / 0 NAN NAN NAN 65535 2147483648 NAN TRUE TRUE -2147483648 1 except Average() outputs NAN 2 except Ave

Section 10. Troubleshooting 435 10.4 Communications 10.4.1 RS-232 Baud rate mis-match between the CR3000 and datalogger support software is often t

Section 10. Troubleshooting 436CommsMemFree(1) = tiny + lil*100 + mid*10000 + med*1000000 + lrg*100000000 where, tiny=numberof16‐bytepackets

Section 10. Troubleshooting 437 Table 117. CommsMemFree(1) Defaults and Use Example, TLS Active Example Buffer Category Condition: res

Section 10. Troubleshooting 438queue, 14 bigfreeq packets are free (one in use), and 28 lilfreeq are free (two in use). These three pieces of in

Section 10. Troubleshooting 43910.5.2 Troubleshooting Power at a Glance Symptoms: PossiblesymptomsincludetheCR3000programnotexecuting;Low12

Section 4. Quickstart Tutorial 444.2.2 Hardware Setup Note The thermocouple is attached to the CR3000 later. 4.2.2.1 Internal Power Supply With

Section 10. Troubleshooting 440 Battery Test If using a rechargeable power supply, disconnect the charging source (i.e., solar panel or

Section 10. Troubleshooting 441 Charging Regulator with Solar-Panel Test Disconnect any wires attached to the 12V and G (ground) terminals on the

Section 10. Troubleshooting 44210.5.3.3 Charging Regulator with Transformer Test The procedure outlined in this flow chart tests PS100 and CH100

Section 10. Troubleshooting 443 Charging Regulator with ac or dc Transformer Test Disconnect any wires attached to the 12V and G (ground) terminal

Section 10. Troubleshooting 444 No Adjusting Charging Circuit 1) Place a 5-k resistor between a 12V terminal and a G (ground)

Section 10. Troubleshooting 445 Figure 136: Potentiometer R3 on PS100 and CH100 Charger / Regulator 10.6 Terminal Emulator CR3000 terminal mode i

Section 10. Troubleshooting 446As shown in figure DevConfig Terminal Emulator (p. 448), after entering a terminal emulator, press Enter a few tim

Section 10. Troubleshooting 447Table 118. CR3000 Terminal Commands Option Description Use REBOOT Program recompile Typing “REBOOT” rapidly will r

Section 10. Troubleshooting 448 Figure 137: DevConfig terminal emulator tab 10.6.1 Serial Talk Through and Sniffer In the P: Serial Talk Throug

449Section 11. Glossary 11.1 Terms acSeeVac(p.472). accuracyAmeasureofthecorrectnessofameasurement.SeealsotheappendixAccuracy,P

Section 4. Quickstart Tutorial 455. Attach the black wire from the PS100 to the terminal labeled G on the green connector. 6. After confirming th

Section 11. Glossary 450 AsynchronousAcceptedabbreviationfor"gauge."AWGistheacceptedunitwhenidentifyingwirediameters.La

Section 11. Glossary 451CacheDataThedatacacheisasetofbinaryfileskeptontheharddiskofthecomputerrunningthedataloggersupportsof

Section 11. Glossary 452CompactFlashCompactFlash®(CF)isamemory‐cardtechnologyutilizedbyCampbellScientificcard‐storagemodules.Compac

Section 11. Glossary 453CRBasicEditorCompile,SaveandSendCRBasicEditormenucommandthatcompiles,saves,andsendstheprogramtothedatalo

Section 11. Glossary 454DCEDatacommunicationsequipment.Whilethetermhasmuchwidermeaning,inthelimitedcontextofpracticalusewithth

Section 11. Glossary 455DTEDataterminalequipment.Whilethetermhasmuchwidermeaning,inthelimitedcontextofpracticalusewiththeCR300

Section 11. Glossary 456executiontimeTimerequiredtoexecuteaninstructionorgroupofinstructions.Iftheexecutiontimeofaprogramexcee

Section 11. Glossary 457FP2Two‐bytefloating‐pointdatatype.DefaultCR3000datatypeforstoreddata.WhileIEEEfour‐bytefloatingpointisuse

Section 11. Glossary 458HertzAbbreviated"Hz."Unitoffrequencydescribedascyclesorpulsespersecond. HTMLHypertextMarkupLang

Section 11. Glossary 459intermediatestorageTheportionofmemoryallocatedforthestorageofresultsofintermediatecalculationsnecessaryfor

Section 4. Quickstart Tutorial 46 Figure 15: PC200W main window Table 3. PC200W EZSetup Wizard Example Selections Start the wizard to follow t

Section 11. Glossary 460loopAseriesofinstructionsinaprogramthatarerepeatedaprescribednumberoftimesandfollowedbyan"end&qu

Section 11. Glossary 461multi‐meterAninexpensiveandreadilyavailabledeviceusefulintroubleshootingdata‐acquisitionsystemfaults. multiple

Section 11. Glossary 462offsetaterm,oftenaparameterinaCRBasicmeasurementinstruction,todesignatethey‐intercept,shiftingfactor,or

Section 11. Glossary 463outputprocessinginstructionsProcessdatavaluesandgenerateoutputarrays.Examplesofoutputprocessinginstructionsi

Section 11. Glossary 464PingAsoftwareutilitythatattemptstocontactanotherspecificdeviceinanetwork. PoissonRatioAratiousedinstr

Section 11. Glossary 465pulseAnelectricalsignalcharacterizedbyasuddenincreaseinvoltagefollowbyashortplateauandasuddenvoltagedec

Section 11. Glossary 466RS‐232RecommendedStandard232.Aloosestandarddefininghowtwocomputingdevicescancommunicatewitheachother.The

Section 11. Glossary 467Thisistheprinciplebehindthermocoupletemperaturemeasurement.Italsocausessmall,correctablevoltageoffsetsinCR3

Section 11. Glossary 468skippedscansOccurswhentheCR3000programistoolongforthescaninterval.Skippedscanscancauseerrorsinpulsem

Section 11. Glossary 469StationStatuscommandAcommandavailableinmostdataloggersupportsoftwareavailablefromCampbellScientific.Thefol

Section 4. Quickstart Tutorial 47Table 3. PC200W EZSetup Wizard Example Selections Start the wizard to follow table entries. Screen Name Informati

Section 11. Glossary 470supportsoftwareIncludesPC200W,PC400,RTDAQ,LoggerNet,andLoggerNetclients.BriefdescriptionsarefoundinDatalo

Section 11. Glossary 471terminalemulatorisavailableinmostdataloggersupportsoftwareavailablefromCampbellScientific. thermistorAthermi

Section 11. Glossary 472UserProgramTheCRBasicprogramwrittenbytheCR3000userintheCRBasicEditorortheShortCutprogramgenerator. US

Section 11. Glossary 473watchdogtimerAnerror‐checkingsystemthatexaminestheprocessorstate,softwaretimers,andprogram‐relatedcounterswh

Section 11. Glossary 474group of measurements. Resolution is a measure of the fineness of a measurement. Together, the three define how well a da

475Appendix A. CRBasic Programming Instructions Read More! Parameter listings, application information, and code examples are available in CRBasic

Appendix A. CRBasic Programming Instructions 476SyntaxSub subname (argument list) [statement block] Exit Sub [statement block] End Sub WebP

Appendix A. CRBasic Programming Instructions 477ReadOnlyFlagsacommaseparatedlistofvariables(PublicorAliasname)asread‐only.SyntaxRead

Appendix A. CRBasic Programming Instructions 478DataIntervalSetsthetimeintervalforanoutputtable.SyntaxDataInterval(TintoInt, Interval,

Appendix A. CRBasic Programming Instructions 479TableFileWritesafilefromadatatabletoaCR3000memorydrive.SyntaxTableFile("FileName

Section 4. Quickstart Tutorial 48 Figure 16: Short Cut temperature sensor folder 4.2.4.2 Procedure: (Short Cut Steps 7 to 9) 7. Double-click Wi

Appendix A. CRBasic Programming Instructions 480MomentStoresthemathematicalmomentofavalueovertheoutputinterval.SyntaxMoment(Reps, So

Appendix A. CRBasic Programming Instructions 481WindVectorProcesseswindspeedanddirectionfromeitherpolarororthogonalsensors.Tosaveproc

Appendix A. CRBasic Programming Instructions 482CallTableCallsadatatable,typicallyforoutputprocessing.SyntaxCallTable [TableName] Delay

Appendix A. CRBasic Programming Instructions 483 -or- If [condition 1] Then [then statements] ElseIf [condition 2] Then [elseif then statement

Appendix A. CRBasic Programming Instructions 484TriggerSequenceUsedwithWaitTriggerSequencetocontroltheexecutionofcodewithinaslowsequ

Appendix A. CRBasic Programming Instructions 485SemaphoreGetAcquiressemaphore(p.467)1‐3toavoidresourceconflicts.SyntaxSemaphoreGet() Sem

Appendix A. CRBasic Programming Instructions 486PanelTempThisinstructionmeasuresthepaneltemperaturein°C.SyntaxPanelTemp(Dest, Integ) Si

Appendix A. CRBasic Programming Instructions 487BrFull6WMeasuresratioofVdiff2/Vdiff1ofasix‐wirefull‐bridge.Reports1000*(Vdiff2/Vdif

Appendix A. CRBasic Programming Instructions 488SW12Setsaswitched12‐Vdcterminalhighorlow.SyntaxSW12(State) A.5.6 Pulse and Frequency R

Appendix A. CRBasic Programming Instructions 489 A.5.7.1 Control PortSetSetsthespecifiedporthighorlow.SyntaxPortSet(Port, State) PulsePort

Section 4. Quickstart Tutorial 49 Figure 17: Short Cut thermocouple wiring 4.2.4.3 Procedure: (Short Cut Steps 10 to 11) Historical Note In the

Appendix A. CRBasic Programming Instructions 490A.5.9 Specific Sensors ACPowerMeasuresrealacpowerandpower‐qualityparametersforsingle‐,s

Appendix A. CRBasic Programming Instructions 491GPSUsedwithaGPSdevicetokeeptheCR3000clockcorrectorprovideotherinformationfromtheG

Appendix A. CRBasic Programming Instructions 492A.5.9.1 Wireless Sensor Network ArrayIndexReturnstheindexofanamedelementinanarray.Synt

Appendix A. CRBasic Programming Instructions 493CDM_VW300ConfigConfigurestheCDM_VW300DynamicVibratingWireModule.SyntaxCDM_VW300Config(Devi

Appendix A. CRBasic Programming Instructions 494SDMCD16ACControlsanSDM‐CD16AC,SDM‐CD16,orSDM‐CD16Dcontroldevice.SyntaxSDMCD16AC(Source,

Appendix A. CRBasic Programming Instructions 495SDMTriggerSynchronizewhenSDMmeasurementsonallSDMdevicesaremade.SyntaxSDMTrigger SDMX50

Appendix A. CRBasic Programming Instructions 496+ Add - Subtract = Equal to <> Not equal to > Greater than < Less than >

Appendix A. CRBasic Programming Instructions 497>>BitwiserightshiftSyntaxVariable = Numeric Expression >> Amount &BitwiseAND

Appendix A. CRBasic Programming Instructions 498EQVPerformsalogicalequivalenceontwoexpressions.Syntaxresult = expr1 EQV expr2 NOTPerfor

Appendix A. CRBasic Programming Instructions 499Table 121. Derived Trigonometric Functions Function CRBasic Equivalent Hyperbolic Cotangent HCotan

Assistance Products may not be returned without prior authorization. The following contact information is for US and International customers resid

Section 4. Quickstart Tutorial 5011. Outputs displays the list Selected Sensors on the left and data storage tables, under Selected Outputs, on t

Appendix A. CRBasic Programming Instructions 500SINHReturnsthehyperbolicsineofanexpressionorvalue.Syntaxx = SINH(Expr) TANReturnsthe

Appendix A. CRBasic Programming Instructions 501 INTDVPerformsanintegerdivisionoftwonumbers.SyntaxX INTDV Y LNorLOGReturnsthenatural

Appendix A. CRBasic Programming Instructions 502A.6.8 Integrated Processing DewPointCalculatesdewpointtemperaturefromdrybulbandrelative

Appendix A. CRBasic Programming Instructions 503CovSpaComputesthespatialcovarianceofsetsofdata.SyntaxCovSpa(Dest, NumOfCov, SizeOfSets, C

Appendix A. CRBasic Programming Instructions 504of the array. The results will be a running aerage of a spatial average on the various source ar

Appendix A. CRBasic Programming Instructions 505A.7 String Functions Read More! See String Operations (p. 241) & Concatenates string variables

Appendix A. CRBasic Programming Instructions 506CheckSumReturnsachecksumsignatureforthecharactersinastring.SyntaxVariable = CheckSum(

Appendix A. CRBasic Programming Instructions 507LenReturnsthenumberofbytesinastring.SyntaxVariable = Len(StringVar) LowerCaseConvertsa

Appendix A. CRBasic Programming Instructions 508TrimReturnsacopyofastringwithnoleadingortrailingspaces.Syntaxvariable = Trim(TrimSt

Appendix A. CRBasic Programming Instructions 509IfTimeReturnsanumberindicatingTrue(‐1)orFalse(0)basedonthedatalogger'sreal‐time

Section 4. Quickstart Tutorial 51 Figure 19: Short Cut output table definition 4.2.4.5 Procedure: (Short Cut Step 17 to 18) 17. Click Finish to c

Appendix A. CRBasic Programming Instructions 510VoiceBeg,EndVoiceMarksthebeginningandendingofvoicecodeexecutedwhentheCR3000detects

Appendix A. CRBasic Programming Instructions 511Figure Custom Menu Example (p. 70) shows windows from a simple custom menu named DataView. DataView

Appendix A. CRBasic Programming Instructions 512SubMenu/EndSubMenuDefinethebeginningandendingofasecond‐levelmenuforacustommenu.Sy

Appendix A. CRBasic Programming Instructions 513SerialInRecordReadsincomingserialdataonaCOMportandstoresthedatainadestinationvariab

Appendix A. CRBasic Programming Instructions 514• Com2 (C3,C4) • Com3 (C5,C6) • Com4 (C7,C8) • Com32 – Com46 (available when using a single-c

Appendix A. CRBasic Programming Instructions 515DialSequence/EndDialSequenceDefinesthecodenecessarytoroutepacketstoaPakBusdevice.Synt

Appendix A. CRBasic Programming Instructions 516RoutesReturnsalistofknowndynamicroutesforaPakBusdataloggerthathasbeenconfiguredas

Appendix A. CRBasic Programming Instructions 517 Table 122. Asynchronous-Port Baud Rates -nnnn (autobaud1 starting at nnnn) 0 (autobaud starting a

Appendix A. CRBasic Programming Instructions 518MoveMovesthevaluesinarangeofvariablesintodifferentvariablesorfillsarangeofvariab

Appendix A. CRBasic Programming Instructions 519FileOpenOpensanASCIItextfileorabinaryfileforwritingorreading.SyntaxFileHandle = File

Section 4. Quickstart Tutorial 52 18. Close this window by clicking on X in the upper right corner. 4.2.5 Send Program and Collect Data PC200W S

Appendix A. CRBasic Programming Instructions 520RunProgramRunsadataloggerprogramfilefromtheactiveprogramfile.SyntaxRunProgram("D

Appendix A. CRBasic Programming Instructions 521TableName.RecordDeterminestherecordnumberofaspecificdatatablerecord.SyntaxTableName.Rec

Appendix A. CRBasic Programming Instructions 522EMailSendSendsanemailmessagetooneormoreemailaddressesviaanSMTPserver.Syntaxvariab

Appendix A. CRBasic Programming Instructions 523IPTraceWritesIPdebugmessagestoastringvariable.SyntaxIPTrace(Dest) NetworkTimeProtocolSyn

Appendix A. CRBasic Programming Instructions 524 HTTPOut("<p>html string to output " + variable + " additional string to ou

Appendix A. CRBasic Programming Instructions 525DNPUpdateDetermineswhentheDNPslavewillupdatearraysofDNPelements.Specifiestheaddresso

Appendix A. CRBasic Programming Instructions 526NewFieldCalTriggersstorageofFieldCalvalueswhenanewFieldCalfilehasbeenwritten.Syntax

Appendix A. CRBasic Programming Instructions 527A.20.2 GOES GOESDataSendsdatatoaCampbellScientificGOESsatellitedatatransmitter.SyntaxGO

Appendix A. CRBasic Programming Instructions 528A.20.4 INMARSAT-C INSATDataSendsatableofdatatotheOMNISAT‐Itransmitterfortransmissionv

529Appendix B. Status Table and Settings The CR3000 Status table contains system operating-status information accessible via the integrated keyboa

Section 4. Quickstart Tutorial 53CR3000. To view the OneMin table, select an empty cell in the display area, then click Add. 4.2.5.3 Procedure:

Appendix B. Status Table and Settings 530Table 123. Common Uses of the Status Table Feature or Suspect Constituent Status Field(s) to Consult RS

Appendix B. Status Table and Settings 531Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit? In

Appendix B. Status Table and Settings 532Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit?

Appendix B. Status Table and Settings 533Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit? In

Appendix B. Status Table and Settings 534Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit?

Appendix B. Status Table and Settings 535Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit? In

Appendix B. Status Table and Settings 536Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit?

Appendix B. Status Table and Settings 537Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit? In

Appendix B. Status Table and Settings 538Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit?

Appendix B. Status Table and Settings 539Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit? In

Section 4. Quickstart Tutorial 54 Figure 23: PC200W Collect Data tab 4.2.5.5 Procedure: (PC200W Steps 7 to 9) 7. Click the OneMin box so a chec

Appendix B. Status Table and Settings 540Table 124. Status-Table Fields and Descriptions Fieldname Description Variable Type Default Range Edit?

Appendix B. Status Table and Settings 5419 If no user-entered SlowSequence scans are programmed, this variable is not listed in the table. If multi

Appendix B. Status Table and Settings 542 Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration U

Appendix B. Status Table and Settings 543Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration Util

Appendix B. Status Table and Settings 544Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration Ut

Appendix B. Status Table and Settings 545Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration Util

Appendix B. Status Table and Settings 546Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration Ut

Appendix B. Status Table and Settings 547Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration Util

Appendix B. Status Table and Settings 548Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration Ut

Appendix B. Status Table and Settings 549Table 125. CR3000 Settings Settings are accessed through the Campbell Scientific Device Configuration Util

Section 4. Quickstart Tutorial 55 Figure 24: PC200W View data utility 4.2.5.6 Procedure: (PC200W Steps 10 to 11) 10. Click on to open a file fo

Appendix B. Status Table and Settings 550

551Appendix C. Serial Port Pinouts C.1 CS I/O Communications Port Pin configuration for the CR3000 CS I/O port is listed in table CS I/O Pin Descr

Appendix C. Serial Port Pinouts 552as a connection to a computer DTE device. A standard DB9-to-DB9 cable can connect the computer DTE device to t

Appendix C. Serial Port Pinouts 553 Table 128. Standard Null-Modem Cable or Adapter-Pin Connections* DB9 DB9 pin 1 & 6 ---------- pin 4 pin

Appendix C. Serial Port Pinouts 554

555Appendix D. ASCII / ANSI Table American Standard Code for Information Interchange (ASCII) / American National Standards Institute (ANSI) Decima

Appendix D. ASCII / ANSI Table 556Dec Hex Keyboard Display Char LoggerNet Char Hyper- TerminalChar Dec Hex Keyboard Display Char LoggerNetChar Hyp

Appendix D. ASCII / ANSI Table 557Dec Hex Keyboard Display Char LoggerNet Char Hyper- TerminalChar Dec Hex Keyboard Display Char LoggerNetChar Hyper

Appendix D. ASCII / ANSI Table 558Dec Hex Keyboard Display Char LoggerNet Char Hyper- TerminalChar Dec Hex Keyboard Display Char LoggerNetChar Hyp

559Appendix E. FP2 Data Format FP2 data are two-byte big-endian values. Representing bits in each byte pair as ABCDEFGH IJKLMNOP, bits are descri

Section 4. Quickstart Tutorial 56 Figure 25: PC200W View data table 4.2.5.7 Procedure: (PC200W Steps 12 to 13) 12. Click on any data column. T

Appendix E. FP2 Data Format 560

561Appendix F. Other Campbell Scientific Products Campbell Scientific products expand the measurement and control capability of the CR3000. Consu

Appendix F. Other Campbell Scientific Products 562F.1.2 Wireless Sensor Network Wireless sensors use the Campbell wireless sensor (CWS) spread-sp

Appendix F. Other Campbell Scientific Products 563F.2.2 Pulse / Frequency Input Expansion Modules These modules expand and enhance pulse- and frequ

Appendix F. Other Campbell Scientific Products 5644WHB10K 10-k, four-wire, half-bridge TIM module 4WPB100 100-, four-wire, PRT-bridge TIM modul

Appendix F. Other Campbell Scientific Products 565F.4 Control Output Modules F.4.1 Digital I/O (Control Port) Expansion Digital I/O expansion modul

Appendix F. Other Campbell Scientific Products 566CR3000 acting as a master, peer, or slave. Dataloggers communicate in a network via PakBus®, Mo

Appendix F. Other Campbell Scientific Products 567F.6.2 Batteries Table 148. Batteries Model Description BPALK D-cell, 12-Vdc alkaline battery pa

Appendix F. Other Campbell Scientific Products 568F.6.5 Primary Power Sources Table 151. Primary Power Sources Model Description 9591 18-Vac, 1.

Appendix F. Other Campbell Scientific Products 569F.8 Telecommunications Products Many telecommunications devices are available for use with the CR

57Section 5. System Overview A Campbell Scientific data-acquisition system is made up of the following basic components: • Sensors • Datalogger

Appendix F. Other Campbell Scientific Products 570F.8.4 Telephone m Table 157. Telephone Modems Model Description COM220 9600 baud COM320 9600

Appendix F. Other Campbell Scientific Products 571 Table 161. CF-Card Storage Module Model Description CFM100 CF card slot only NL115 Network lin

Appendix F. Other Campbell Scientific Products 572Table 163. Datalogger Support Software Software Compatibility Description RTDAQ PC, Windows Dat

Appendix F. Other Campbell Scientific Products 573Table 164. LoggerNet Adjuncts and Clients1,2 Software Description RTMCRT Allows viewing and prin

Appendix F. Other Campbell Scientific Products 574Table 166. Software Development Kits Software Compatibility Description JAVA-SDK PC, Windows Al

575Index 112VTerminal...6412‐VoltSupply ...935 5V‐

Index 576B BackgroundCalibration... 141,289,291,297,532Backup...

Index 577CommunicationsMemoryFree...437,532CommunicationsPorts ...532CompactFlash ...

Index 578DaylightSavingUS ... 510dc ... 455

Index 579Expression‐String ...154ExtendedCommands‐‐SDI‐12 ...190ExternalPowerSupply

Section 5. System Overview 58 Figure 27: Features of a data-acquisition system 5.1 CR3000 Datalogger The CR3000 datalogger is one part of a dat

Index 580HelloRequest... 361Hertz ... 460

Index 581J JunctionBox...320K KeyboardDisplay ...71,72,2

Index 582Move ... 519MoveBytes ... 376,

Index 583PCSupportSoftware...78PC200W ...45PDM ...

Index 584Protection ... 77PRT ... 2

Index 585SampleRate...468SampleFieldCal ...481,527Samp

Index 586SkippedScan ... 136,429,470,532SkippedSlowScan...

Index 587TelnetSettings...544TemperatureRange...83TerminalEmulat

Index 588VoiceSpeak... 511VoltMeter... 474Vol

Section 5. System Overview 59Sensors transduce phenomena into measurable electrical forms, outputting voltage, current, resistance, pulses, or stat

Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbel

Section 5. System Overview 60A library of sensor manuals and application notes are available at www.campbellsci.com to assist in measuring many s

Section 5. System Overview 61as compared to pulse-count measurements. The frequency resolution of pulse-count measurements can be improved by exten

Section 5. System Overview 62The number of CAO terminals can be expanded with peripheral CAO devices available from Campbell Scientific. Refer t

Section 5. System Overview 63• Peripheral 12 Vdc Power Source — 2 terminals (12V) and associated grounds (G) supply power to sensors and periphera

Section 5. System Overview 64the use of the keyboard display is available in the sections Read More! To implement custom menus, see CRBasic Edito

Section 5. System Overview 65with an upper input voltage limit of 15 Vdc may be damaged if connected to a CR3000 that is powered by 16 Vdc. 5.1.5

Section 5. System Overview 66Note Once a Short Cut generated program has been edited with CRBasic Editor, it can no longer be modified with Shor

Section 5. System Overview 67 Data files from TableFile() instruction (TOA5, TOB1, CSIXML and CSIJSON) o Keep memory (OS variables not initializ

Section 5. System Overview 68data this way, stop the CR3000 program to ensure data are not written to the card while data are retrieved; otherwis

Section 5. System Overview 69• Routing — the CR3000 can act as a router, passing on messages intended for another logger. PakBus supports automati

7Table of Contents Section 1. Introduction...27 1.1 HELLO ...

Section 5. System Overview 70displays two values from CR3000 memory. PanelTemps shows the CR3000 wiring-panel temperature at each scan, and the o

Section 5. System Overview 71Note All security features can be subverted through physical access to the CR3000. If absolute security is a require

Section 5. System Overview 72HTTP: • Send datalogger programs. • View table data. • Get historical records or other files present on the datal

Section 5. System Overview 73Level 1 must be set before Level 2. Level 2 must be set before Level 3. If a level is set to 0, any level greater tha

Section 5. System Overview 745.1.9.3.2 PakBus Instructions The following CRBasic PakBus instructions have provisions for password protection: •

Section 5. System Overview 75One use of file encryption may be to secure proprietary code but make it available for copying. 5.1.9.5 Communication

Section 5. System Overview 765.1.10.3 Calibration Read More! See Self-Calibration (p. 295). The CR3000 uses an internal voltage reference to rout

Section 5. System Overview 77applications in LoggerNet Remote are run on a separate computer, and are used to manage the LoggerNet Linux server. •

Section 5. System Overview 78 

79Section 6. CR3000 Specifications 1.1CR3000specificationsarevalidfrom─25°to50°Cinnon‐condensingenvironmentsunlessotherwisespecifie

Table of Contents 84.2.5.6 Procedure: (PC200W Steps 10 to 11)... 55 4.2.5.7 Procedure: (PC200W Steps 12 to 13)...

Section 6. CR3000 Specifications 80

81Section 7. Installation 7.1 Moisture Protection When humidity tolerances are exceeded and condensation occurs, damage to CR3000 electronics can

Section 7. Installation 82 Figure 29: Enclosure 7.4 Power Sources Note Reliable power is the foundation of a reliable data-acquisition system.

Section 7. Installation 83Power supplies available from Campbell Scientific can be reviewed in the appendix Power Supplies (p. 566), or at www.camp

Section 7. Installation 847.4.3.2 Internal Batteries Internal-power supplies have a thermal fuse that limits source current and minimizes the nee

Section 7. Installation 858. Check for normal datalogging function before leaving the site. Table 4. Alkaline Battery Service and Temperatures

Section 7. Installation 86The charging source powers the CR3000 while float charging the batteries. The batteries power the CR3000 if the chargi

Section 7. Installation 87Sealed Rechargeable-Battery Safety There are inherent hazards associated with the use of sealed rechargeable batteries.

Section 7. Installation 88 Figure 31: Sealed rechargeable battery wiring 7.4.3.2.3 Low Profile (No Battery) Base A CR3000 with the low-profile

Section 7. Installation 89 Figure 32: Connecting to vehicle power supply 7.4.5 Powering Sensors and Devices Read More! See Power Sources (p. 82).

Table of Contents 9Section 7. Installation...81 7.1 Moisture Protection...

Section 7. Installation 90Table 6. Current Source and Sink Limits Terminal Limit1 5V + CS I/O (combined)5 < 200 mA 1 "Source" is pos

Section 7. Installation 91See Sensors Requiring Current Excitation (p. 330) for precautions when measuring resistances > 1000  or sensors with

Section 7. Installation 92PortSet() is a measurement task instruction. Use it when powering analog input sensors that need to be powered just pri

Section 7. Installation 93In laboratory applications, locating a stable earth ground is challenging, but still necessary. In older buildings, new a

Section 7. Installation 94Note Lightning strikes may damage or destroy the CR3000 and associated sensors and power supplies. In addition to prot

Section 7. Installation 95 7.5.2 Single-Ended Measurement Reference Low-level, single-ended voltage measurements are sensitive to ground potential

Section 7. Installation 96CR3000. Despite being tied to the same ground, differences in current drain and lead resistance result in different gro

Section 7. Installation 97 Figure 35: Model of a ground loop with a resistive sensor 7.6 CR3000 Configuration The CR3000 ships from Campbell Scie

Section 7. Installation 98• Provide a terminal emulator useful in configuring devices not directly supported by DevConfig graphical user interfa

Section 7. Installation 99 If problems are encountered with a 2 MB CR3000, sending the OS over a direct RS-232 connection is usually successful. S