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ROC800-Series Instruction Manual
Revised Jul-14
Input/Output Modules
4-13
Figure 4-11. Externally Powered Pulse Input Module Field Wiring
Figure 4-12. ROC800-Powered Pulse Input Module Field Wiring
Caution
You can induce ground loops by tying commons from various modules
together.
4.7 Discrete Output (DO) Modules
The five-channel Discrete Output (DO) module provides two-state
outputs to energize solid-state relays and power small electrical loads.
These are solid-state relays. A Discrete Output may be set to send a
pulse to a specified device. Discrete Outputs are high and low outputs
used to turn equipment on and off.
DO modules can be software-configured as latched, toggled,
momentary, or Timed Duration Outputs (TDO). The DO can be
+
-
OPEN DRAIN TYPE
OR
OPEN COLLECTOR DEVICE
EXTERNALLY POWERED
+
-
CONTACT-CLOSURE DEVICE
EXTERNALLY POWERED
125KHz PI FILTER &
LEVEL DETECTION
12KHz PI FILTER &
LEVEL DETECTION
DOC0510B
+
-
12KHz PI FILTER &
LEVEL DETECTION
+T
METER COIL
- +
DOC0511A
H
L
H
L
COM
CH 2
CH 1
+T
PI
2 CHAN
OPEN DRAIN TYPE DEVICE
OR
OPEN COLLECTOR
ROC800 POWERED
COM
Representative
Internal Circuit
Field Wiring
Representative
Internal Circuit
Field Wiring