Manual

Publication 1757-UM007D-EN-P - December 2008 103
Supported 1771 Modules Chapter 8
This data can be mapped to a numeric write tag.
Diagnostic Data
The 1771-NOC module returns 16 bits of diagnostic data.
This data can be mapped to a flag read tag.
3 Channel 4 data
4 Channel 5 data
5 Channel 6 data
6 Channel 6 data
7 Channel 7 data
1771-NOC 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 data invalid
9 Channel 2 data invalid
10 Channel 3 data invalid
11 Channel 4 data invalid
12 Channel 5 data invalid
13 Channel 6 data invalid
14 Channel 7 data invalid
15 Channel 8 data invalid
1771-NOC Module I/O Data
Word Description