Rockwell Automation 1756-XXXX ControlLogix Analog I/O Modules - Manual (Page 116)

116 Publication 1756-UM009C-EN-P - December 2010
Chapter 5 Sourcing Current Loop Input Module (1756-IF6CIS) and Isolated Analog Voltage/Current Input Module (1756-IF6I)
Module Fault Word Bits – Integer Mode
In integer mode, Module Fault word bits (bits 15-8) operate exactly as
described in floating point mode. The table lists tags that can be examined in
ladder logic to indicate when a fault has occurred:
Channel Fault Word Bits – Integer Mode
In integer mode, Channel Fault word bits operate exactly as described in
floating point mode. The table lists the conditions that set all Channel Fault
word bits.
Your logic can monitor the Channel Fault Word bit for a particular input to
determine the state of that point.
Tag Description
Analog Group
Fault This bit is set when any bits in the Channel Fault word are set. Its tag
name is AnalogGroupFault.
Input Group Fault This bit is set when any bits in the Channel Fault word are set. Its tag
name is InputGroup.
Calibrating This bit is set when any channel is being calibrated. When this bit is
set, all bits in the Channel Fault word are set. Its tag name is
Calibrating.
Calibration Fault This bit is set when any of the individual Channel Calibration Fault bits
are set. Its tag name is CalibrationFault.
Conditions for Channel Fault
Word Bits Displays
A channel is being calibrated. ’003F’ for all bits.
A communications fault occurred
between the module and its
owner-controller. ’FFFF’ for all bits.