S7 PLC communication library for Java, based on Moka7

Parser of the industrial protocol S7 (S7comm) using Libpcap

PascalSCADA for Lazarus

Mokka7 is native port of Snap7 core in pure Java (fork of moka7 https://snap7.sourceforge.net) and parts of Sharp7.

Communication gateway between serial devices and a PLC

SCADA system implemented in Node-RED. It includes customizable data visualization tabs, a login panel and a login log.

SCADA HMI for substations and automation applications.

Log some parameters from your Siemens S7 PLC into postgres DB using S7 protocol.

HarpoS7 is a C# library for authenticating sessions in the S7 Comm Plus protocol, supporting both legacy challenge (TIA Portal V16 and older) and TLS authentication (TIA Portal V17 and newer).

S7-KNX communication gateway

C# implementation of Siemens S7 connections with a focus on performance

Modern .NET helpers to read/write from/to Siemens S7 encoded streams

Implementation of Siemens S7 protocol in golang

Lightweight python library for data reading/writing with Siemens PLCs