Regarding UART Configuration and Baud Rate in nRF9160DK Modbus RTU Sample

RE: Regarding UART Configuration and Baud Rate in nRF9160DK Modbus RTU Sample

Didrik Rokhaug — Fri, 10 May 2024 14:17:49 GMT

The modbus sample and library comes from upstream Zephyr, and is not something that is contributed by us.

We therefore don't have any explicit support or knowledge about them.

Instead, I recommend that you ask the Zephyr community, as they are the ones who maintain the modbus support in Zephyr.

RE: Regarding UART Configuration and Baud Rate in nRF9160DK Modbus RTU Sample

purushothaman — Thu, 09 May 2024 12:36:44 GMT

Hi,

Currently, I am utilizing the NRF sample code for a Modbus client on the NRF9160 development kit. However, I am encountering some difficulties in establishing communication with the ModScan application on the server side. Due to the unavailability of another NRF9160 development kit for the server side, I am attempting to connect via USB to serial communication.

Despite my efforts, I am encountering errors during the connection process. Before delving deeper into debugging, I wanted to confirm whether the NRF Modbus client sample code is indeed compatible with the ModScan or any other modbus software application for sending and receiving data.

Could you please provide clarification on this matter? Additionally, if there are any specific configurations or considerations I should be aware of when using the NRF Modbus client sample code with ModScan, I would greatly appreciate any guidance or insights you can offer.

RE: Regarding UART Configuration and Baud Rate in nRF9160DK Modbus RTU Sample

Didrik Rokhaug — Wed, 08 May 2024 11:40:25 GMT

Hi,

You can find this information by looking at the device tree.

If you haven't done so already, I recommend that you take our nRF Connect SDK Fundamentals and Intermediate courses at our Developer Academy.

Best regards,

Didrik