A Python 3 library for communicating with Allen-Bradley PLCs using Ethernet/IP, supporting ControlLogix, CompactLogix, Micro800, and SLC500/MicroLogix devices.
pycomm3

- Python
- Automation, Manufacturing, Process Control, Robotics
- Control Chart, Cyber-Physical Systems (CPS), Internet of Things (IoT), Machine Learning, Predictive Maintenance Algorithms, Quality Control, Software Development Kit (SDK)
Features:
- EtherNet/IP communication, PLC tag reading/writing, PLC program upload/download (limited), PLC time management, device discovery, generic CIP messaging, SLC/MicroLogix PCCC communication, simplified data type handling, automatic request fragmentation, large packet support
Pricing:
- Free
- Modern Python 3 library for Allen-Bradley PLCs, simplifies complex E/IP operations, actively maintained, good documentation with examples, supports a range of PLC models.
- Primarily focused on Allen-Bradley PLCs, can be complex if unfamiliar with CIP or PLC concepts, reliability in critical production environments should be carefully evaluated as per disclaimer.
Best for:
- Engineers and developers needing to communicate with Allen-Bradley PLCs for data acquisition, monitoring, or control from Python applications.