Rockwell Automation 1771-QDC PLASTIC MOLD.MODULE - Manual (Page 293)

6–9 Calibration Instructions
Publication 1771-6.5.88 – July 1997
6. To calibrate the 4-20mA output range, first change the following
jumpers with power ON, then calibrate:
•
E6-E9 to the current position (left)
E6
E7
E8
E9
•
E10, E14, E13, E17 to the current position (top)
E17
E13
E14
E10
Step Enter Command Code (BTW 2): and Read in BTR:
1 0080H word 4 = 0FFF
2 8080H word 5 = 0FFF
7. To verify 4-20mA range, enter command codes 0400H and 8400H.
Then apply these codes for current:
Step Apply Code for Current (BTW 3-6): and Read Verification Code (BTR 10-13):
1 000H (4mA) 000H
2 0800H (12mA) 0800H
3 FFFH (20mA) FFFH
8. To store the calibration data in EEPROM, follow these steps:
Step Enter this Command Code (BTW 2):
1 0800H
2 8800H
3 0000H
ATTENTION: To avoid possible injury or machine damage
when you return the QDC module for service, make sure you
reset the jumpers to the original pre-calibration settings.
9. If there is no error in the BTR status byte, you completed the procedure.
Reset jumpers, re-assemble the module, and return it for service.