Rockwell Automation 1897-NOV High Speed Analog Installation Instructions - Manual (Page 9)

Fast Isolated Analog Output Module 9
Publication CIG-5.1 – April 1998
The digital status data resides in the modules Rack/Group/Slot
location in the programmable controller input image table. The
following table shows the format of the 16 bit data word read from
the module over the backplane:
Input Data Definition
Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Word 1 Not used
Module
Reset
DAC
update in
progress
Channel “Armed”
Word Bit Description
Bits
00–07 Channel “Armed” – set when the channel has an output which is
going to change the next time that trigger event occurs. Bit 00
corresponds to channel 1, bit 01 corresponds to channel 2, and so
on.
Bit 08 DAC update in progress – set when the module is busy updating
the DAC’s
Bit 09 Module in Reset – set when the I/O Reset line is asserted indicating
that all channels have been zeroed (including all pending changes)
Bits
10–15 Not used
NOTE: If a channel output value is changed, that value (which is
different from the current state of the output) is written to the
“pending output” buffer. The corresponding “channel armed” bit
will then be set. If you change that channel value back to the current
output value without a trigger event, the “channel armed” bit will
still be set.
The front panel of the analog module contains two bi-color
indicators: a red/green RUN/FLT (fault) indicator and a red/green
CAL/COM indicator. The CAL/COM indicator is not used on this
module.
RUN/FLT
CAL/COM
10528-I
Run/Fault indicator. This indicator will flash green until the
diagnostic test is completed at power up.. If a fault is found
initially or occurs later, the RUN/FLT indicator turns red.
Not used
Reading Data from Your
Module
Interpreting the Indicator
Lights