Allen-Bradley MicroLogix 1400 - Page 21

Publication 1766-RM001A-EN-P - October 2008
I/O Configuration 21
The bits are defined as follows:
• Sx = General status bits for channels 0 and 1. This bit is set when an
error (over- or under-range) exists for that channel, or there is a
general module hardware error.
• Ox = Over-range flag bits for channels 0 and 1. These bits can be
used in the control program for error detection.
• Ux = Under-range flag bits for channels 0 and 1. These bits can be
used in the control program for error detection.
1762-IF2OF2 Output Data File
For each module, slot x, words 0 and 1 contain the channel output data.
Scaled-for-PID Format
Word
Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 Channel 0 Data 0 to 16,383 0 0
1 0 0 Channel 1 Data 0 to 16,383 0 0
2 Reserved
3 Reserved
4 Reserved S1 S0
5 U0O0U1O1Reserved
Raw/Proportional Format
Word
Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 Channel 0 Data 0 to 32,768 0 0 0
1 0 Channel 1 Data 0 to 32,768 0 0 0
Scaled-for-PID Format
Word
Bit Position
1514131211109876543210
0 0 0 Channel 0 Data 0 to 16,383 0 0
1 0 0 Channel 1 Data 0 to 16,383 0 0
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