Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 150)

Chapter 5
5Ć15
3. Jumper TERMINAL 17 (15) to 11.
4. Enable the module’s analog input by loading 0000 hex into word
W02 for loop 1 (8000 hex for loop 2).
5. Load a value of OFFF hex into W05(W12) for a full-scale analog
output. Set the set output bit by loading C802 hex into W01 for loop
1 (C804 for loop 2).
6. Monitor analog input 1 in position 064 for loop 1 (analog input 2 in
position 071 for loop 2).
7. Adjust R64 (R61) until the reading of the analog input just becomes
OFFF, hex.
8. Repeat for loop 2.
9. Place E14 (E15) in its initial position, IN or OUT, and remove the
jumpers from the field wiring arm.
Tieback Current Inputs
Using the following procedure with the input circuits configured to
current mode, adjust the input scaling resistor to produce a full scale
reading from the A/D converter for a 20mA input. Repeat the procedure
for the loop 2 input after loop 1 had been completed.
1. Place E11 (E12) in the IN position.
2. Jumper TERMINALS 12 and 14 (12 and 13).
3. Enable the module’s tieback input by loading 4000 hex into word
W02 for loop 1 (C000 hex for loop 2).
4. Load a value of OFFF hex into W05 (W12) for a full-scale analog
output. Set the set output bit by loading C802 hex into word W01
for loop 1 (C804 for loop 2). Refer to Figure 5.2 if necessary.
5. Monitor tieback input 1 in position 066 for loop 1 (tieback input 2 in
position 073 for loop 2).