Hi,
We have PLC panel S7 - 300 system(Slave PLC) having a CPU 315 - 2DP,CP 342 - 5 Card some I/O cards.
CPU 315 - 2DP - Motor Control Center(MCC) Feeder communication .
CP 342-5 - Remote Communicaion to Master System.
CPU 416 - 3 Master PLC System
Communication to the Master and MCC is oK.
While checking the remote signal from my PLC(Slave) to Master,when i force the digital bit or analog signal from VAT table , i can able to see the same bit high in monitor table and i can see the CPU Force LED is ON but in MASTER system they can't able get the bit high
But if i give high signal to that particular bit in program(in software) , then master can able read the signal .
i can get the signal if master system forces the bit.
Please give me some tips to short out this problem.