Modbus TCP Unable to Open Port Error

[memethemyn]

Hi..

I recevied this message when I want to communicate with the Modbus TCP PLC.

Where is the problem..

I tried everything but I didnt find the solution..

[JohnCZ]

Hi,

It is possible that you have not opened all ports that are required to communicate through modbus.

Example when you need to communicate Beijer HMI and PLC from Mitsubishi through MODBUS TCP, then you need opened the port in PLC.

L_ModBus_TCP.JPG (20.18 KiB) Viewed 8634 times

Test your HMI with PC simulator. If HMI response through PC simulator then the problem is in the other site.

JohnCZ

[memethemyn]

I solve the problem by installing the newest version of ix developer and runtime..

When I run the project on the developer pc there is no error but when I tried on the runtime PC the error is given. So I update the runtime and developer..

Thanks..