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Snap7 is an open source, 32/64 bit, multi-platform Ethernet communication suite for interfacing natively with Siemens S7 PLCs.

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Snap7

This is a fork of http://snap7.sourceforge.net/

This fork focuses on extending the Snap7Server module to support some features helping to implement a software PLC. These features are currently:

  • support for program blocks (up-/download, listing)
  • some dynamic SZLs
  • vartable watching
  • monitor mode

For more details I refer to the commit history. Please note that this fork is currently at version 1.4.0.

Cleanup, more fixes and documentation will follow.

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Snap7 is an open source, 32/64 bit, multi-platform Ethernet communication suite for interfacing natively with Siemens S7 PLCs.

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