Watch Dog Station
Traveler-driven size/weight verification for packing workflows
The Watch Dog Station is a solution architecture that helps operators verify they are packing the correct part variant by checking size and/or weight against traveler or work order requirements. The station provides clear pass/fail feedback and standard logging for traceability.
What it solves
- Prevents packing the wrong size/variant by verifying against traveler requirements
- Provides clear operator feedback to reduce reliance on judgment calls
- Supports quantity tracking against order/traveler requirements
- Creates basic traceability records using standard logging and CSV export
How it works
- Scan the traveler/work order to load part criteria (size/weight targets and quantity).
- Place the part into the station bin/tray for measurement.
- The station captures the measurement (weight and/or size method as scoped).
- Software compares readings to expected ranges with configurable tolerances.
- The station displays pass/fail feedback and tracks progress through the traveler.
- Optional outputs can trigger additional workflow steps, with label printing and integrations scoped to your workflow (optional where required).
Measurement options (scoped)
- Load cell (weight verification)
- Vision-based size/dimensional verification (where feasible)
- Configurable tolerance thresholds appropriate to the application
Data, logging & connectivity
Standard
- Pass/fail logging
- CSV export
Optional (scope-dependent)
- Label printing integration (scoped to the workflow)
- Image capture/storage (only if imaging is part of the station scope)
- Database/MES hooks
- Fieldbus: EtherNet/IP, Modbus, OPC UA, EtherCAT
- PLC I/O handshakes with other machines
Watch Dog vs Pack and Track
Watch Dog is typically used for traveler-driven size/weight verification of parts being packed. Pack and Track is focused on guided, item-by-item order fulfillment verification workflows (often with multiple verification methods).
Talk to us about your application
Share your traveler format, part variants, and what should happen on mismatch. SSI will scope the station, measurement method, and integration needs.