Rockwell Automation 1771-N SERIES High Resolution Analog Module User Manual - Manual (Page 67)

5–7 Module Status and Input Data
Publication 1771ĆUM127B-EN-P - December 2002
Bit/Word Description for Output Status Data Words
Word
Decimal Bit
(Octal Bit)
Definition
Bit 00-03 Not used. Always 0
Bit 04
Low clamp. This bit is set if alarms are enabled and the output
data is lower than the low clamp value.
Bit 05
High clamp. This bit is set if alarms are enabled and the output
data is higher than the high clamp value.
Bit 06
Rate alarm. This bit is set if alarms are enabled and the output
data changed faster than the programmed ramp rate.
Word 4
Bit 07
Bad data. This bit is set if BCD format was chosen and the
output data is not a legal BCD value.
Bits 08 (10)
Bad programming. This bit is set if the most recent BTW
contained improper programming data for this channel
Bit 09 (11)
Bad calibration. This bit is set if the channel has not had a
valid calibration.
Bits 10Ć15
(12Ć17)
Not used. Always = 0
Word 5
Bits 00Ć15
(00Ć17)
Channel 1 Raw data sent to DAC.
Refer to the Appendix specific to your module for block transfer
read configurations.
In this chapter you learned the meaning of the status information that
the modules send to the processor.
Chapter Summary