I have an issue with at modbus client when connecting it to a Wiser.
The client is a Systemair Save 250/B.
In my attempts to solve the issue I purchased a USB to serial interface and was able to connect to the client with the help of the PC software from the manufacturer.
I connected the corresponding cables to the Wiser and changed the RTU settings that was successful on the software. However, I am getting operation timeout when trying to get data from the client.
I do not have a 120ohm resistor connected. As the installation is an hour away; Do you think this is the solution to the problem in this case? The cable from Wiser to client is 1.5 meters.
The client is a Systemair Save 250/B.
In my attempts to solve the issue I purchased a USB to serial interface and was able to connect to the client with the help of the PC software from the manufacturer.
I connected the corresponding cables to the Wiser and changed the RTU settings that was successful on the software. However, I am getting operation timeout when trying to get data from the client.
I do not have a 120ohm resistor connected. As the installation is an hour away; Do you think this is the solution to the problem in this case? The cable from Wiser to client is 1.5 meters.