Omron CJ Series User Manual

7-9
7 Troubleshooting and Maintenance
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
7-3 Troubleshooting Using Error Status
7
7-3-1 Unit Status Word
7-3 Troubleshooting Using Error Status
 Error status in Device Variables
The PROFIBUS Master Unit provides error status indications to the CPU Unit in the Unit Status
Word and the Master Errors which are allocated to CPU Bus Units (see 4-2-3 Unit Status (*_UnitSta)
and 4-2-5 Master Errors (*_MstrErrSta)).
The Unit Status word (*_UnitSta) contains status and error indications on the Unit itself. The corre-
sponding bit flag will change to TRUE if an error event has occurred.
7-3-1 Unit Status Word
Bit Name Description/Correction
*_UnitErr Unit error flag If this bit is set, one of the other error flags in the Unit Sta-
tus Word is set. Refer to the following bits for error deter-
mination.
*_MstrErr Master error flag If this bit is set, one of the error flags in the Master Errors
word is set. Refer to these bits for error determination.
*_NewErrLogSta Error Log contains new errors There are new errors available in the Error Log since the
last time the error log was read. Reading the error log will
clear this bit flag.
*_ParamTxSta Parameter transfer in progress A Parameter transfer is in progress either from the config-
urator to the Unit.
*_ParamStorErr Local parameter storage error An error has occurred when writing the configuration to
the non-volatile memory.
To correct this:
• Restart the Unit.
• Re-download the configuration.
• If the problem persists, replace the PROFIBUS Master
Unit.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
*_UnitSta
*_UnitErr
*_MstrErr
*_NewErrLogSta
*_ParamTxSta
*_ParamStorErr
*_ParamLoadErr
*_FileRdErr
*_LogStorErr

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English