Manual

Publication 1757-UM007D-EN-P - December 2008 109
Supported 1771 Modules Chapter 8
Diagnostic Data
The 1771-NIV module returns 40 bits of diagnostic data to the host
controller.
1771-NIV Module Diagnostic Data
Bit Description
0 Module good communication
1 reserved
2 reserved
3 reserved
4 reserved
5 reserved
6 reserved
7 reserved
8 Channel 1 bad calibration
9 Channel 2 bad calibration
10 Channel 3 bad calibration
11 Channel 4 bad calibration
12 Channel 5 bad calibration
13 Channel 6 bad calibration
14 Channel 7 bad calibration
15 Channel 8 bad calibration
16 Bad program
17 Module fault
18 Program verify 0
19 Program verify 1
20 I/O reset
21 RTS time-out
22 Mod alarm
23 Bad channel data
24 Channel 1 data Underrange
25 Channel 2 data Underrange
26 Channel 3 data Underrange
27 Channel 4 data Underrange
28 Channel 5 data Underrange
29 Channel 6 data Underrange
30 Channel 7 data Underrange
31 Channel 8 data Underrange