Hello,
i encountered problem with one device that we read via modbus TCP. Communication log is repeating next
2019-10-26 02:47:19 Establish a TCP connection with 192.168.x.x:x
Error establishing TCP connection: No connection could be made because the target machine actively refused it 192.168.x.x:x
2019-10-26 02:47:20 Unable to communicate with Device 301 “HMI-x” because connection is not established
2019-10-26 02:47:20 Attempt to establish TCP connection can not be earlier than 5 seconds after the previous.
2019-10-26 02:47:20 Unable to communicate with Device 301 “HMI-x” because connection is not established
2019-10-26 02:47:20 Attempt to establish TCP connection can not be earlier than 5 seconds after the previous.
2019-10-26 02:47:20 Unable to communicate with Device 301 “HMI-x” because connection is not established
and so on.
Strange thing is that we can ping device and he is returning. Plus we have remote software to access to that device and that is working correctly.