Please only way to reset the master PLC and slave PLC RX3i of GE-FANUC

Hello.
I ask you to help this problem . I am currently using 02 stations located in all PACSystems RX3i .
I experience this phenomenon is the 02 PLC lemon together are ownership, this principle is only 02 PLC 01 PLC work , rest PLC operating in standby mode and vice versa. This causes me a lot of technical problems in the shaft tightly control the operation of the system . For example, I need address only ON the PLC M200 % A and % M200 to the PLC OF B. At first the phenomenon has not bee ...

Use a Global variable. For example, use %G0001 to write to %M200 in each PLC.