Omron CJ Series User Manual

7-31
7 Troubleshooting and Maintenance
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
7-6 Event Logs
7
7-6-3 Error Descriptions
Effects User program
Continues
Operation During network operation the Unit detectsprotocol errors
and will switch to OFFLINE mode.
System-defined
variables
Variable Data type Name
*_MstrProtErr BOOL PROFIBUS Protocol error
Cause and cor-
rection
Assumed cause Correction Prevention
Network wiring problems. Check the wiring. Follow specific wiring guidelines set in
this manual.
Other faulty devices on the network. Isolate and remove the faulty device. ---
Attached
information
None
Precautions/
Remarks
When a PROFIBUS Protocol Error is present, the Master Unit is switched to OFFLINE mode.
Event name Hardware Error Event code 88060000 hex
Meaning An error has occurred on the bus.
Source Function Module Source details CJ-series Unit Detection
timing
At network opera-
tion
Error attributes Level
Minor
Recovery Switch the Unit to
CLEAR/OPER-
ATE mode again
Log category
System
Effects User program
Continues
Operation During network operation the Unit detects Hardware
Errors and will switch to OFFLINE mode.
System-defined
variables
Variable Data type Name
*_MstrHwErr BOOL Hardware Error
Cause and cor-
rection
Assumed cause Correction Prevention
Faulty wiring, broken message, short
circuits, faulty bus timings or an active
device has been detected beyond the
Highest Station Address setting
(HSA).
• Check the network wiring.
• Check for short-circuits.
• Check the bus timing set in CX-
ConfiguratorFDT
• Check the HSA setting in the DTM’s
Bus Parameter tab.
• Check if any faulty devices are on
the network.
--
Attached
information
None
Precautions/
Remarks
None

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English