Publication 1766-RM001A-EN-P - October 2008
22 I/O Configuration
1762-IF4 Input Data File
For each module, slot x, words 0 and 1 contain the analog values of the
inputs. The module can be configured to use either raw/proportional data
or scaled-for-PID data. The input data file for either configuration is
shown below.
The bits are defined as follows:
• Sx = General status bits for channels 0…3. 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…3. These bits are set when the input
signal is above the user-specified range. The module continues to convert data
to the maximum full range value during an over-range condition. The bits reset
when the over-range condition clears.
• UIx = Under-range flag bits for input channels 0…3. These bits are set when
the input signal is below the user-specified range. The module continues to
convert data to the maximum full range value during an under-range
condition. The bits reset when the under-range condition clears.
• SGNx = The sign bit for channels 0…3.
1762-OF4 Input Data File
For each module, slot x, words 0 and 1 contain the analog output module
status data for use in the control program.
1762-IF4 Input Data File
Word
Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 SGN0 Channel 0 Data
1 SGN1 Channel 1 Data
2 SGN2 Channel 2 Data
3 SGN3 Channel 3 Data
4 Reserved S3 S2 S1 S0
5U0 O0U1O1U2O2U3O3Reserved
6 Reserved
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