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ROC800-Series Instruction Manual
4-10
Input/Output Modules
Revised Jul-14
A
12V / 24V dc Jumper
Figure 4-7. Analog Output Jumper J4 (Shown Set to +12V)
Figure 4-8. Analog Output Module Field Wiring
Caution
You can induce ground loops by tying commons from various modules
together.
4.5 Discrete Input (DI) Modules
The eight-channel Discrete Input (DI) modules monitor the status of
relays, open collector/open drain type solid-state switches, and other
two-state devices. Discrete Inputs come from relays, switches, and other
devices, which generate an on/off, open/close, or high/low signal.
+
-
I
+V
250
CONTROL
CURRENT LOOP
DOC0505A
CONTROL
CURRENT LOOP
CONTROL
CURRENT LOOP
CONTROL
CURRENT LOOP
+
-
CURRENT LOOP DEVICE 4-20mA
ROC800 POWERED
1-5 VOLT CONTROL DEVICE
A
Representative
Internal Circuit
Field Wiring