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ramonhl

The problem is solved.
When we create the master we can see a paramer keepalive in the constructor.

ModbusMaster master = modbusFactory.createTcpMaster(ipParameters, keepalive);

I was keepalive=false. If keepalive = false then every time that the client (master) read of the server (slave) the socket is open------close.

If keepalive = true then the master close the socket at the end of all the readings. But I do not know how the keepalive works exactly, is it parametrizable...

Do you know How the keepalive works exactly? And Where Can I find Modbus4j documentation?

Best regards.

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