Rockwell Automation Publication 1756-UM010C-EN-P - June 2021
103
Appendix
A
Troubleshooting the Configurable
Flowmeter Module
What This Appendix
Contains
This appendix describes how to troubleshoot the module.
Using the Status Indicators
The module offers status indicators to show the health of your module. The
indicators show individual I/O status (green) for each point and a bi-colored
indicator for module “OK” (red/green).
During powerup, an indicator test is done and the following occurs:
•
The “OK” indicator turns red for one second.
•
If the module passes the self-test, the “OK” indicator turns to flashing
green.
METERING
DC I/O
O
K
F
0
Z
0
F
1
Z1
O
0
O
1
Series A Module
1756-CFM
DC I/O
O
K
F
0
Z
0
F
1
Z1
O
0
O
1
Series B and Later Modules
Table 11 - 1756-CFM Module Status Indicators
LED Indicators
This Display
Means
Take This Action
OK
Steady green light
The inputs are being multicast and in normal operating
state.
None
OK
Flashing green light
The module has passed internal diagnostics but is not
actively controlled.
Configure the module.
OK
Flashing red light
Previously established communication has timed out.
Check controller and chassis communication
OK
Steady red light
The module must be replaced.
Replace the module.
Input
(F, Z)
Off
The input is turned off.
The input is not in use.
A wire is disconnected.
If you need to use the input, check wiring connections
Input
(F, Z)
Steady yellow
The input is in normal operating state.
None
Output
(0, 1)
Off
The output is turned off.
The output is not in use.
If you need to use the output, check wiring connections
and your ladder logic application.
Output
(0, 1)
Steady yellow
The output is in normal operating state.
None
