Communication between S7-200 EM277 and Premium PBY100 via Profibus

Siemens register address is VW. Schneider's address is 96IW. How to convert signal between them? Appreciate any comments.

S7-200 Configuration on profibus

The S7-200 is only a slave on the profibus network. I assume the PBY100 is a master. The S7-200 address starts (eg:vw100) as the inputs coming from the profibus master. Depending on the number of configured words determine the address of the VW going out to the master. (vw100 + number of configured ouput bytes on the master's configuration eg: 16)= vw116 address for outoging bytes to master. I might have the input and output order reversed. but essentially it is just a mailbox with incoming data and outgoing data.

One additional note

The address in the profibus master may or may not have the same input and output address. In a Siemens master you usually make the inputs and outputs to a profibus slave the same (2 registers.) There are other PLCs that do not support simultaneous addresses for inputs and outputs (1 register) I hope I haven't muddied the water too much.

Thank you very much for your kind sharing.