Rockwell Automation 1769-IF4XOF2 Compact Combination Analog Module - Manual (Page 16)

16 Compact™ Combination Analog I/O Module
Publication 1769-IN057A-EN-P - July 2001
Output Data File
The output data file applies only to output data from the module as shown in the
table below.
Wor
d Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 SGN Analog Output Data Channel 0 0 0 0 0 0 0 0
1 SGN Analog Output Data Channel 1 0 0 0 0 0 0 0
IMPORTANT
Bits 0 through 6 and Bit 15 of output data words 0 and 1 should
always be set to zero in your control program. If they are not set
to 0, the invalid data flag (Ex) will be set for that channel.
However the channel will continue to operate with the
previously converted value. If a MVM (Move with Mask)
instruction is used with a mask of 7F80 (hexidecimal) to move
data to the output words, writing to bits 0 through 6 and bit 15
can be avoided.