Omron SYSMAC CS Series Operation Manual page 235

Troubleshooting the Network
LED Indicators
Local Parameter Storage Error
(Valid Configuration Indicator will
be OFF)
Local Parameter Load Error
(Valid Configuration Indicator will
be OFF)
File read error is ON
(Valid Configuration Indicator will
be OFF)
Parameter error: ON
(Valid Configuration Indicator will
be OFF)
Disturbed bus Error: ON
214
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.
An error has occurred, when loading the configuration from the non-volatile memory
to the volatile memory at start up.
Most likely causes:
• A failure or interruption during the writing process.
• A faulty parameter setting, which makes initialization of the PROFIBUS interface
not possible.
To correct this:
• Check the parameter settings for incorrect values.
• Restart the Unit.
• Re-download the configuration.
• If the problem persists, replace the PROFIBUS Master Unit.
An error has occurred, when loading the configuration from the non-volatile memory
to the volatile memory at start up.
Most likely causes:
• A failure or interruption during the writing process.
• A failure during the reading process.
• A faulty Memory Card.
To correct this:
• Check the Memory Card for faults.
• Restart the PLC Unit, to re-download the configuration.
• If the problem persists, use CX-Profibus to re-download the configuration.
An error has occurred initializing the PROFIBUS interface, after reading the parame-
ter sets from the non-volatile memory to the volatile memory.
Most likely cause:
• A faulty parameters has been downloaded to the Unit.
To correct this:
• Check the parameter settings in CX-Profibus and correct them if necessary. After
correction, perform a download of the new parameters to the Unit.
An error has occurred in the PROFIBUS interface, with distorted messages received
by the PROFIBUS Master Unit.
Most likely causes:
• No or invalid termination or no inductors used at high baud rates.
• Faulty wiring.
To correct this:
• Check the termination on the appropriate devices.
• Restart the PLC Unit, to re-download the configuration.
• If the problem persists, use CX-Profibus to re-download the configuration.
• If the problem persists, replace the PROFIBUS Master Unit.
Description / Correction
Section 7-4