Smoothing Field Commissioning with Custom Python Software
Commissioning industrial warehouse control systems (WCS) and high-throughput conveyor lines often involves severe operational friction: unverified PLC telegrams, mechanical dwell delays, crane handover mismatches, and troubleshooting hundreds of alarm signals across multiple PLCs.
To streamline field testing and shorten plant ramp-up times, I engineered the "wcs-tool"—an 11,000+ line Python desktop application with DPI-aware Tkinter GUI, socket network engine, and native PLC communication drivers built specifically for commissioning engineers.
Co-Developed with AI Pair Programming
This application was co-developed in collaborative pair programming with Antigravity AI (Google DeepMind). By combining my hands-on industrial automation knowledge (ISA-88 batch standards, P&ID setups, PLC registers) with advanced AI coding velocity, we rapidly architected complex Dijkstra graph pathfinding algorithms, real-time binary S7 DB bit parsers, and multi-client socket synchronization in record time.
Key Technical Modules & Architecture
Dijkstra Pallet Navigator
Shortest-path routing engine with collision avoidance, capacity control for accumulators (ACCU), positioning device alignment (1P), and crane crossing handovers.
Industrial Telegram Engine
Full encoder/decoder for industrial PLC messaging standard protocols: ZA, Z*, M1, M2, M3, MA3, ZE, and crane orders (PO/DO/MO/ZO).
Siemens S7 DB Alarm Polling
Native snap7 S7 driver reading DBX alarm bits in real time, with an integrated TIA Portal .db source file parser for automated error symbol extraction.
Pre-Dispatch & LTF Re-Routing
Pre-sends move commands on M2 departure telegrams to eliminate mechanical latency, and automatically re-routes pallets around Long Time Failure (LTF) faulted groups.
Multi-Client Socket Sync
TCP/IP host-client broadcasting allowing multiple commissioning engineers on-site to view live pallet positions, scenario triggers, and PLC logs simultaneously.
Automated Scenario Engine
Configurable auto-routing triggers for unattended loop testing, stress-testing conveyor junctions and scanner stations during pre-commissioning.
