Campbell-scientific SDM-CD8S 8 Channel Solid State DC Control Module Manual do Utilizador descarregar pdf (Página 10)

SDM-CD8S 8 Channel Solid State DC Control Module

EXTERNAL

8 TO 26 VDC

+ —

SDM-CD8S

DATALOGGER

GND

Connection to External Supply

SDM-CD8S

DATALOGGER

12 V

GND

Connection to Datalogger Supply

FIGURE 2. Connection block diagrams

TABLE 1. Datalogger to SDM-CD8S Connections

SDM-CD8S Datalogger Function

PWR 12 V on datalogger or

8 to 26 V external supply

Power

Logic Gnd Gnd Common ground

C1 C1 (Control Port 1) Data

C2 C2 (Control Port 2) Clock

C3 C3 (Control Port 3) Enable

4.1.2 Controlled Device Connections

In most applications, the SDM-CD8S acts as a switch (controllable break) in

the ground return of the circuit powering the controlled device. Figure 3

shows an example.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 31 32

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Campbell-scientific SDM-CD8S 8 Channel Solid State DC Control Module Manual do Utilizador Página 10