User Manual Owner's manual

Publication 1797-6.5.2 - February 2001
About the FLEX Ex Thermocouple/RTD/mV Input Module 1-3
Indicators
Indicators are provided to identify input or output fault conditions,
and to show when power is applied to the module.
Using Alarms on the
1797-IRT8 Module
The 1797-IRT8 FLEX Ex module is capable of generating four alarms:
•
Underrange
•
Overrange
•
Fault (open wire)
•
Cold junction compensation Fault
These alarm conditions are described in general terms and as they
relate to bits on the FLEX Ex I/O module on the following pages. The
graphic below shows at what values these alarms are generated for
Data Format 4.
Ex
1797-IRT8
PWR
40070
1797-IRT8
Module Type
Removable Label
Keyswitch Position
Indicator (#2)
Power On Indicator
Input Designators