Manual

94 Publication 1757-UM007D-EN-P - December 2008
Chapter 8 Supported 1771 Modules
I/O Data
The 1771-IR module returns 6 words of floating point data to the host
controller.
This data is mapped to a numeric read tag.
Diagnostic Data
The 1771-IR module returns 16 bits of diagnostic data to the host
controller.
This data can be mapped to a flag read tag.
1771-IR Module I/O Data
Data Word Description
0 Channel 1 data
1 Channel 2 data
2 Channel 3 data
3 Channel 4 data
4 Channel 5 data
5 Channel 6 data
1771-IR Module Diagnostic Data
Data Bit Description
0 Module good communication
1 Channel 1 underrange
2 Channel 2 underrange
3 Channel 3 underrange
4 Channel 4 underrange
5 Channel 5 underrange
6 Channel 6 underrange
7 reserved
8 Channel 1 overrange
9 Channel 2 overrange
10 Channel 3 overrange
11 Channel 4 overrange
12 Channel 5 overrange
13 Channel 6 overrange
14 reserved
15 reserved