Chapter 5
Troubleshooting
In the case that the diagnostic tools of the REX Control System (e.g. RexView) report unexpected or incorrect values of inputs or outputs, it is desirable to test the functionality outside the REX Control System. Also double check the configuration – the most common problems include:
- The Siemens device is in STOP mode.
- Networking/IP address conflict.
- Simultaneous writing to one location from both the Siemens PLC algorithm and the REX control algorithm.
- Mismatch between little-endian and big-endian implementation. It is possible to swap byte order in the configuration dialog of the driver.
In the case that the given input or output works with other software tools and does not work in the REX Control System, report the problem to us, please. E-mail is preferred, reach us at support@rexcontrols.com. Please include the following information in your description to help us process your request as soon as possible:
- Identification of the REX Control System you are using. Simply export it to a file using the RexView program (Target Licence Export).
- 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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