Chapter 2
Troubleshooting
The OPC server of the REX Control System is automatically launched by the visualization
software when OPC signal browser opens. However, this happens only if the server is
registered correctly in the Windows operating system. In the case you do not see the
REXControls.RexOPCsvr in the OPC servers list, use the Task manager to check whether the
RexOPCsv.exe program is running. If the OPC server does not start automatically, register it
manually from command line using the command
RexOPCsv.exe /regserver
In the case you are able to see REXControls.RexOPCsvr server in the list but do not see the individual signals of the control algorithm, you probably have:
- incorrectly defined the IP address of your target device in the Windows registry
- disconnected the target device (check the Ethernet cable)
- switched off the target device
If you are still not able to access the variables of the REX control algorithm via the OPC server after checking the possible causes listed above, please contact us with the description of the problem.
Please include the following information in your description to help us process your request as soon as possible:
- Version number, build number and licence number of the REX Control System you are using.
- Short and accurate description of your problem.
- The configuration files of the REX Control System (.mdl files) reduced to the simplest case which still demonstrates the problematic behavior.
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