Data Exchange Between WMS and Crane PLC via OPC UA Communication
DSC Engineering commissioned a communication gateway solution using a Siemens S7-1515 PLC, OPC UA technology, and Python-based communication services to integrate a Warehouse Management System with an existing Siemens S5-controlled storage crane. The system enables automated exchange of pallet storage/retrieval data, location management, and operational status signals — bridging modern warehouse software with legacy crane automation.
DSC Engineering Solution
- Siemens S7-1515 PLC gateway with OPC UA server configuration
- Python-based communication services for WMS data exchange
- Integration with legacy Siemens S5 crane control system
- Automated pallet ID, location, and status signal exchange
- Full commissioning and performance verification
Project Impact
- Integration of modern WMS with existing crane infrastructure
- Extended service life of legacy Siemens S5 control system
- Elimination of manual warehouse transaction handling
- Improved inventory traceability and operational efficiency
- Reduced integration cost vs. complete crane replacement
- Future-ready architecture supporting digital warehouse operations

