What this chapter contains, Status indicators, Chapter 7 – Rockwell Automation 1797-IRT8 FLEX Ex Thermocouple/RTD/mV Input Module User Manual User Manual
Page 65: What this chapter contains -1 status indicators -1, Chapter
1
Publication 1797-6.5.2 - February 2001
Chapter
7
Troubleshooting the FLEX Ex Thermocouple/
RTD/mV Input Module
What this Chapter Contains
Read this chapter to troubleshoot your I/O module.
Status Indicators
The 1797-IRT8 module has one status indicator for each input (8 in
all) and one power indicator that is on when power is applied to the
module .
For information on:
See page:
Indicator
Color
State
Meaning
Status
Red
On
At power up – Channel 0 indicator lights at powerup until
all internal diagnostics are checked. After successful
powerup, the indicator goes off if no fault is present.
After successful powerup – Indicates a critical fault
(diagnostic failure, etc.)
Blinking (when
faults are
enabled, and bit
set)
Indicates a noncritical channel fault
Power
Off
Module not powered
Green
On
Module receiving power
Ex
1797-IRT8
PWR
A
B
C
A = Status indicators
B = Insertable labels for writing individual input designations
C = Power indicator
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