Emerson ROC364 - Appendix C - I;O Simulation; Analog Outputs to Analog Inputs

ROC364 Instruction Manual
C-1 I/O Simulation Rev Jun/05
APPENDIX C – I/O SIMULATION
This appendix describes how to simulate inputs and outputs to verify the proper operation of the ROC.
The simulations make use of the various types of I/O modules available for the ROC.
This section contains the following information:
Section Page
C.1 Analog Outputs to Analog Inputs C-1
C.2 Analog Outputs to Ammeter C-2
C.3 Discrete Outputs to Discrete Inputs C-3
C.4 Discrete Outputs to Pulse Inputs C-3
C.5 Potentiometer to Analog Inputs C-4
C.6 Switch to Discrete Inputs C-5
C.7 Switch to Pulse Inputs C-5
 NOTE: Use a standard screwdriver with a slotted (flat bladed) 1/8-inch width tip when wiring all
terminal blocks.
C.1 Analog Outputs to Analog Inputs
The Analog Output source module simulates a transmitter by feeding a 4 to 20 milliamps current to
either an Analog Input Loop module or an Analog Input Differential module. Figure C-1 and Figure C-2
show wiring connections.
LEVEL
A
O SRC
B
220
COM
C
R1=0
+I
+V
A
I LIMIT
A
I LOOP
B
C
A
-
R1=250
+
+T
DOC0176A
Vs
+
-
Figure C-1. Current Loop — AO Source Module to AI Loop Module
LEVEL
A
O SRC
B
220
COM
C
R1=0
+I
+V
A
A
I DIFF
C
A
B
-
200K
R1=250
+
N/C
200K
DOC0178A
Figure C-2. Current Loop — AO Source Module to AI Differential Module