Modbus Client set single holding register

[Matas]

Hello,

@Markus

but how can I write values to my plc and where I can make changes at this value which write to plc? Example: different limits!

@Markus

Is there a possibilty to change this variables values with mqtt gateway or other methods? Concret to get access to this variable which are only exits in the rut and automatically/periodicly written to the plc?

Please look into this Wiki page as it contains vasts amounts of information on setting up Modbus: https://wiki.teltonika-networks.com/view/RUTX11_Modbus

I would also recommend looking into this thread: How can i write a modbus register through MQTT?

Here as well: Modbus RTU Client - #3 by AndzejJ

In short - the answer would be to either use custom scripts, following the guides above, or using the “Set” functions available within Modbus TCP Client and such:

Regards,
M.