Modbus cannot connect to slave in OH3

[rossko57]

Modbus performance management in openHAB 2

TCP tuning If you are a user only of Modbus-RTU over serial, ignore this section. Modbus-TCP users read on… I wondered whether to make this a separate guide, as this is more about performance external to openHAB, but it is closely related. In Modbus-TCP, we use the standard TCP/IP communications protocol as a “carrier” for our Modbus flavoured data transactions. TCP in general is really peer-to-peer, but with Modbus our Master (openHAB) becomes a TCP Client, initiating communications with TCP…