TRACEABILITY_LINK
One-up/one-down lot genealogy: each input lot linked to the output lot it went into, sealed into a chain, with a mass balance per output lot and a permissive withheld until the genealogy exists.
When to use it
Use TRACEABILITY_LINK when a batch, a fill run or a converting job consumes identified input lots into an identified output lot, and the traceability programme has to answer 'what went into this?' and 'where did this go?' within the time a withdrawal allows.
Interface
The published port signature. This is the whole of what the block exposes to your program — the implementation body is not shown here and ships with the download.
Inputs
| Port | Type | Unit |
|---|---|---|
| ENABLE | BOOL | — |
| LINK_REQ | BOOL | — |
| LOT_IN | STRING | — |
| LOT_OUT | STRING | — |
| QTY | REAL | kg |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| LINK_HASH | STRING | — |
| TRACE_OK | BOOL | — |
| LINKED_LOT_IN | STRING | — |
| LINKED_LOT_OUT | STRING | — |
| LINKED_QTY | REAL | kg |
| OUT_LOT_QTY | REAL | kg |
| IN_LOT_COUNT | UDINT | — |
| LINK_COUNT | UDINT | — |
| REJ_COUNT | UDINT | — |
| REJECT_CODE | USINT | — |
| ALM_REJECTED | BOOL | — |
| VALID | BOOL | — |
Validation evidence
- Tests
- 10
- Simulated scans
- 111
- Simulator
- v0.1.0
Complete IEC 61131-3 implementation with a published test suite that runs on the vplant simulator. The counts above are that suite, executed on this build.
- Conforms to IEC 61131-3
Download TRACEABILITY_LINK — free
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