IBHNet:RFC1006 Communication IBH Link S7/S7Plus - IBHsoftec Wiki English
OPC Server for SIMATIC S5/S7 and Siemens Compatible Controllers » Helmholz Benelux : Helmholz Benelux
Siemens S7 - EasyEdge
Rfc1006 Function (S7-Tcp/Ip) - NetLink 700-883-PRO42 User Manual [Page 46] | ManualsLib
PLCs and Fieldbuses Integration solutions D. Brahy CERN- LHC/IAS 25 november ppt download
S7 Protocol, is the backbone of the Siemens communications, its Ethernet implementation relies on ISO TCP (RFC1006) which, by design, is block oriented.