Status Indicators For The 1756-Irt8I Module; Status Indicators For The 1756-Ir12 Module - Allen-Bradley 1756-IF8I User Manual

Chapter 9 Troubleshoot Your Module
Status Indicators for the
1756-IRT8I Module
Status Indicators for the
1756-IR12 Module
166
Indicator Status
OK Steady green
Flashing green
Flashing red
Steady red
ST Steady yellow
Flashing yellow
Off
FLT Off
Steady red
Flashing red
Indicator Status
OK Steady green
Flashing green
Flashing red
Steady red
ST Steady yellow
Flashing yellow
Off
FLT Off
Steady red
Flashing red
Rockwell Automation Publication 1756-UM540E-EN-P - December 2017
Description
The module is in a normal operating state in Run mode.
The module passed internal diagnostics and is not actively controlled or
the connection is open and the controller is in Program mode.
Previously established communication has timed out.
Replace the module.
The channel is operating as expected.
The channel is being calibrated.
The channel is not in use or is faulted.
The channel is operating as expected or it is not in use.
• The channel is faulted. Some possible causes of the fault include:
– Underrange/overrange detection
– Wire off detection
– CRC from ADC always Bad
For more information on these causes see Chapter 4,
Analog Modules on page 59
The channel is faulted channel is being calibrated. See the previous row for
more information about faults.
Description
The module is in a normal operating state in Run mode.
The module passed internal diagnostics and is not actively controlled or
the connection is open and the controller is in Program mode.
Previously established communication has timed out.
Replace the module.
The channel is operating as expected.
The channel is being calibrated.
The channel is not in use or is faulted.
The channel is operating as expected or it is not in use
• The channel is faulted. Some possible causes of the fault include:
– Underrange/overrange detection
– Wire off detection
– CRC from ADC always Bad
For more information on these causes see Chapter 4,
Analog Modules on page 59
The channel is faulted and is being calibrated. See the previous row for
more information about faults.
Temperature-sensing
Temperature-sensing