Allen-Bradley 1734-OB2, User Manual, Page: 145 / 221

Rockwell Automation Publication 1734-UM001E-EN-P - July 2013
Troubleshoot with the Indicators 147
Troubleshoot Analog
Modules Each analog module has I/O indicators to show the status of the inputs/outputs.
Refer to the individual module for I/O status information.
1734-IE2C Analog Current Input Module
1734-OE2C Analog Current Output Module
41974
Module Status
Network Status
Status of Input 0
Status of Input 1
4-20mA
Analog
Input
Module
Status
Network
Status
1734
IE2C
NODE:
0
1
Indication Probable Cause Recommended Action
Channel Status
Off Module is in CAL mode. None.
Solid green Normal operation present with channel scanning inputs. None.
Flashing green Channel being calibrated. None.
Solid red No power or major channel fault present. Apply field power, or replace module, as needed.
Flashing red Channel is at end of range (0 mA or 21 mA). Operate within normal range.
41974
Module Status
4-20mA
Analog
Output
Module
Status
Network
Status
1734
OE2C
NODE:
0
1
Network Status
Status of Output 0
Status of Output 1
Indication Probable Cause Recommended Action
Channel Status
Off Module is in CAL mode. None.
Solid green Channel actively controlling outputs None.
Flashing green Channel calibrating. None.
Solid red Unrecoverable fault may require device replacement. Replace device.
Flashing red No power, or open wire present. Apply power or verify wiring to load, and correct, as needed.