Omron SYSMAC CS Series Operation Manual page 232

Troubleshooting Using Error Status
01 PROFIBUS protocol error
02 Double master address
error
03 Hardware error
12 Mode command error
13 Parameter error
An error has occurred in the PROFIBUS interface, with distorted messages
received by the PROFIBUS Master Unit.
Most likely causes:
• Lost token messages (the token is not returned).
To correct this:
• Check the master devices on the network, and make sure they are all working
correctly.
• After correction, switch the Unit to CLEAR / OPERATE mode again.
A second master device with the same network address has been detected on the
PROFIBUS network. The PROFIBUS Master Unit has switched to OFFLINE.
To correct this:
• Check the master devices on the network and ensure that they have unique
device addresses.
• After correction, switch the Unit to CLEAR / OPERATE mode again.
A hardware error has occurred in the PROFIBUS interface of the Unit. The PROFI-
BUS Master Unit has switched to OFFLINE.
Most likely causes:
• Faulty wiring,
• Broken messages,
• Short-circuits, or
• Faulty bus timings.
• A master device has been detected beyond the Highest Station Address (HSA).
To correct this:
• Check the network wiring, and make sure it is correct.
• Check for short-circuits.
• Check the bus timing set through CX-Profibus.
• Check if any other faulty devices are on the same network.
• After correction, switch the Unit to CLEAR / OPERATE mode again.
An error has occurred when setting two or more mode switches in Switch Word
(CIO Word n). The flag will be set to ON, until the correct command, i.e. one mode
switch has been issued.
An error has occurred initializing the PROFIBUS interface, after reading the param-
eter 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.
Section 7-3
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