Siemens S7 Communication Protocol¶

S7 (Communication) is a Siemens proprietary protocol that runs between Siemens programmable logic controllers (PLCs).

It can be used to access data from and write data to PLCs.

The Zerynth Siemens S7 Communication Protocol Library is based on the Snap7 Open Source Library.

Contents:

• Siemens S7 Communication Protocol Library
  • The Client class
  • Library Functions
• Examples
  • DB write and read