Rockwell Automation 1769-IF4FXOF2F Compact Combination Fast Analog I/O Module - Manual (Page 18)

18 Compact Combination Fast Analog I/O Module
Publication 1769-IN081A-EN-P - February 2007
Input Data File
For each module, slot x, words 0…3 in the input data file contain the converted
value of the module’s analog input channels. Word 4 in the input data file contains
the time stamp value corresponding to the module's last input data sampling
period. Words 5 and 6 in the input data file contain status bits for the analog input
channels. Word 7 in the input data file contains status bits for the analog output
channels. Words 8 to 9 contain the directed values of the analog output channels
(output data echo).
The bits are defined as follows:
•
SGN = Sign bit in 2’s complement format.
•
Nu = Not Used. Bit set to 0.
•
SIx = General Status bit for input channels 0…3.
•
OIx = Over range flag bits for input channels 0…3.
•
UIx = Under range flag bits for input channels 0…3.
•
HIx = High Alarm flag bits for input channels 0…3.
•
LIx = Low Alarm flag bits for input channels 0…3.
•
SOx = General Status bit for output channels 0…1.
•
OOx = Over range flag bits for output channels 0…1.
•
UOx = Under range flag bits for output channels 0…1.
Word/Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Word 0 SGN Analog Read (Input) Data Value Channel 0 0
Word 1 SGN Analog Read (Input) Data Value Channel 1 0
Word 2 SGN Analog Read (Input) Data Value Channel 2 0
Word 3 SGN Analog Read (Input) Data Value Channel 3 0
Word 4 0 Time Stamp Value
Word 5 Nu Nu Nu Nu Nu Nu Nu Nu Nu Nu Nu Nu SI3 SI2 SI1 SI0
Word 6 LI3 HI3 UI3 OI3 LI2 HI2 UI2 OI2 LI1 HI1 UI1 OI1 LI0 HI0 UI0 OI0
Word 7 Nu Nu UO1 OO1 Nu Nu UO0 OO0 Nu Nu Nu Nu Nu Nu SO1 SO0
Word 8 SGN Output Data Loopback/Echo Channel 0 0 0
Word 9 SGN Output Data Loopback/Echo Channel 1 0 0