I need to read and write some words through an Ethernet interface CP343-1 without use SOFTNET.

I write my software in C with socket.

Where can I find information Siemens ISO on TCP protocol ?

Thanks.

 

Hello,

the ISO on TCP uses RFC1006 and on top of that the SIEMENS specific protocol. As far as I remember the manuals for the H1 CPs of the S5 contained a definition of the telegrams. But if you want to start on TCP level, you must first implement the RFC1006.

Regards,

Georg Hellack
GHF automation GmbH
Herzogenrath
Germany