Chapter 3
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 (command line tools, simple Python script, etc.). Also double check the configuration – the most common problems include:

Hardware problem – incorrect wiring
GPIO pin access problem – the GPIO pin is used by other device (SPI bus, I2C bus, serial line) or program

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: