Have a rockwell PLC, TCP modbus communication, as the client side, their equipment is DSP w5300 plugin, supports TCP modbus communication, as the server side, PLC and their devices are connected to the computer test, function is no problem, but had problems with PLC and equipment working mainly for PLC and equipment to establish a TCP connection, PLC don't send the modbus data, but send the RST packet, strange, do you have encountered this problem or know the problem?
This is the normal equipment and computer communications


This is the equipment and the PLC communication

CodePudding user response:

Try see some document

CodePudding user response:

RST packet? See which is aimed at RST to analysis of connection