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:

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: