Posted 1 Nov 2022 Hi guys I need to test some code in an FX5U PLC, but I don't have the PLC here so I'm trying to simulate it in melsoft gx works 3, but how I can test the Modbus tcp/ip if I do not have an IP address for the plc someone has ever communicate both software, gx works 3 an som modbus master software ?? Share this post Link to post Share on other sites
Posted 1 Nov 2022 (edited) modbus works. But you do not need code as a slave you oly need to add a modbus port in the external device configuration Edited 1 Nov 2022 by Gambit Share this post Link to post Share on other sites
