Rockwell Automation 1771-OFE/B Analog Output Module User Manual - Manual (Page 67)

7-3
Publication 1771Ć6.5.30 - November 1998
The fifth word contains the status of each DAC word; that is,
whether data is out of range or scaling is improperly programmed.
The fifth word also indicates that I/O RESET has been established
(when the processor is in the PROG/TEST or RUN mode).
Word Bits Description
5
Bits 00Ć03
When set, indicate invalid channel data is sent to the module.
These bits are not reset until a correct write block transfer is
sent. Bit 03 corresponds to Channel 4, Bit 02 to Channel 3,
and so on.
Bit 16
Is the I/O RESET bit. When set, it indicates that the processor
is in TEST or PROGRAM mode (i.e., block transfer data is not
being written to the module).
In this chapter you learned how to use the indicator lights and word 5
in the BTR for troubleshooting your module.
Chapter Summary