Not working modbus_set_response_timeout

[Дмитрий Фарафонтов]

I'm trying to install response timeout (libmodbus 3.1.4, OS Windows 7, Visual Studio 2015):

ctx = modbus_new_rtu(connectSetting.address.c_str(), connectSetting.baud, connectSetting.parity, connectSetting.dataBit, connectSetting.stopBit);

if (ctx == nullptr) 

{ 

     LOGV << "No create ctx! error: " << modbus_strerror(errno); return false; 

}

modbus_set_response_timeout(ctx, 1, 0);

if (modbus_connect(ctx) == -1) 

{

LOGV << "No connect! error: " << modbus_strerror(errno);

return false;

}

modbus_set_slave(ctx, slaveId);

modbus_read_registers(address, cellCount, result);

And this example does not work for me.

The program waits for a response from the device endlessly and does not go out on timeout.

What am I doing wrong ?

[Ole Sæther]

Try setting the slave before connecting as in the example at the end of this page:
http://libmodbus.org/docs/v3.1.4/modbus_set_slave.html