Configuring RUT956 as Master serial to send ASCII string to Slave display

[rdejong]

Hi,

I’ve got a specific case here and I am struggling to get all the pieces working.

I need to be able to send an ASCII string to a slave display to display a certain value.

My line of thinking is that I can send the string as a MQTT payload to the RUT956, store this in a custom register and have this sent to the serial connected (RS232 or 485) slave device.

I have tried to follow the instructions given to setup and test a custome register in the Teltonika Wiki, but I have not been able to test these results.

I would like to be able to prove this before purchasing an expensive display that may not work if I cannot get it to query a custom register that stores a formatted ascii string. The MQTT Gateway seems like an option, but again I would like to be able to prove that is can pass the subscribed message to a serially connected device.

Could anyone provide any guidance or ideas to solve this use case?

Thanks.
Rick

[Marija]

Hello,

In the Modbus Serial Client configuration, you can select ASCII as the data type next to the request configuration. For more information, please refer to our wiki page: RUT955 Modbus - Requests Configuration.

Best regards,