CJ1W-PNT21 Omron, CJ1W-PNT21 Datasheet - Page 97

• Manufacturer Part Number: CJ1W-PNT21
• Description: CJ Profinet Master
• Manufacturer: Omron

Specifications of CJ1W-PNT21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Troubleshooting the Network
6-3
6-3-1
Errors in Slave Parameter
Sets
Errors when Establishing
Communication
Errors During Download
Recovery After Failing
Download
6-3-2
Troubleshooting the IO
Controller Unit
84
Troubleshooting the Network
Troubleshooting Parameter Download
Troubleshooting the Network using Cx-ConfiguratorFDT
The PROFINET IO Controller DTM provides clear error messages if
downloading of the parameters to the PROFINET IO Controller Unit fails.
Failure can be due to either
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•
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The error messages displayed will provide a clear indication of the problem.
A download initiated by the user, starts with a check on the IO Device
parameter sets. The IO Controller DTM will check
•
•
•
•
•
•
Any of these errors will abort the download process without consequences for
the CJ1W-PNT21 PROFINET IO Controller Unit.
If no errors occurred during the checking phase, the IO Controller DTM will try
to establish communication with the CJ1W-PNT21 PROFINET IO Controller
Unit through CX-Server. If this fails, an error message will be displayed,
indicating a communication problem. A failure to establish communication
prior to download will have no consequences for the CJ1W-PNT21
PROFINET IO Controller Unit.
If none of the first two processes result in a failure, downloading will
commence. As soon as downloading has started, the configuration data in the
CJ1W-PNT21 PROFINET IO Controller Unit will be overwritten.
If a failure occurs during the download process, which prevents the IO
Controller DTM from completing the process, the user must restart the Unit
manually. Restarting the IO Controller Unit will abort the download process in
the Master Unit and recover the previous configuration from its memory.
CX-ConfiguratorFDT provides several means to troubleshoot either the CJ1W-
PNT21 PROFINET IO Controller Unit, the IO Devices or the network. The
means all rely on features discussed in the previous section.
To troubleshoot the IO Controller Unit or the network, the IO Controller DTM
Diagnosis User Interface provides a help in determining problems. The figure
below shows the Diagnosis - IO Controller Status item of the IO Controller
DTM Diagnosis User Interface.
Errors or inconsistencies in the slave parameter sets, which are checked
prior to download.
The IO Controller DTM being unable to establish communication with the
CJ1W-PNT21 PROFINET IO Controller Unit.
A communication interruption of the process during download.
The total number of IO Devices assigned, which must be at least one slave
device.
The total number of I/O modules per IO Device, which must be at least one
I/O module per IO Device.
The maximum size of the I/O data size, which must not exceed 7168
words.
Any existing overlap in the I/O Areas configured.
Any existing overlap in the allocated PLC memory areas.
Availability of EM banks should any of the I/O Areas be mapped to one of
the EM Banks. Availability of the EM banks depends on the PLC CPU type.
Section 6-3