This section describes how to perform communications with a Siemens Standard
PLC through an RS-232C Option Board or Ethernet Option Board.
3 - 1 Functionality................................................................................................... 3-2
3 - 2 RS-232C Serial Communications..................................................................... 3-3
3 - 2 - 1 Communications Format ..................................................................3-3
3 - 2 - 2
Application Example.........................................................................3-3
3 - 3 Ethernet Communications............................................................................3-11
3 - 3 - 1 Communications Format ................................................................3-11
3 - 3 - 2
Application Example.......................................................................3-11
Connecting to Siemens PLCs