Siemens S5 PLC

Hi Every Body,

Could You Please support me to Solve My Problem on S5.
Shortly I Explain the HW, The S5 CPU 928B Through CP1430 send/Receive Data with WinCC.

When Directly Send S5 App. to S5 CPU (No Eprom), So no Problem Exist.
But When I Program The Eprom Memory With S5 App. Prog and then overall Reset The S5 CPU, No Communication established Between S5 CPU and WinCC. (Of Course No Error Shows on WinCC. It Means The Connection Between CP1430 and WinCC is OK but between S5 CPU and Cp1430 is missed).

For this Project I Must use Eprom. How its possible to Solve?

RACK: 6ES5 135-3KA13
CPU928B: 6ES5 928-3UB21 with FLASH 128kb: 6ES5 374-2KG21
CP1430 TF: 6GK1143-0TB01

Thanks In Adv.

Hi,

try to accommodate all who are in eprom dbs in RAM of the CPU, if the dbs are in EPROM can not be written by comm handling blocks.

Regards
Daniel