MODBUS Communication issue
One of the site , we are using Modbus TCP and Modbus RTU both in same controller. Modbus RTU is connected with COM3 Port of the CPU AC800M PM861 controller. Modbus TCP is connected with CI867 module. and both logics are running in different applications with different cycle times. 4 -4 slave devices are connected on each networks. each salve has one MBconnect block used in the Logic. The Problem is when We enable the TCP MBconnect communiation for more than one salve device then RTU communication freezes for long time. but if both communication works fine independantly without any problem.
Expert advice is needed.