PALLETIZER_CTRL
Palletiser layer and pattern building with slip-sheet sequencing and a stability permissive for discharge.
When to use it
Use PALLETIZER_CTRL when cases are placed onto a pallet in layers of a fixed pattern, slip sheets go in at a set interval, and the load must not be moved or wrapped while a layer is only part-built.
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 |
|---|---|
| ENABLE | BOOL |
| CASE_PLACED | BOOL |
| LAYER_TARGET | USINT |
| PATTERN | USINT |
| PALLET_PRESENT | BOOL |
| SHEET_EVERY | USINT |
| SHEET_DONE | BOOL |
| DISCHARGE_DONE | BOOL |
| LAYER_TMO | TIME |
| RESET | BOOL |
| ACK | BOOL |
Outputs
| Port | Type |
|---|---|
| LAYERS | USINT |
| CASES_IN_LAYER | USINT |
| STABLE | BOOL |
| LOAD_SUSPECT | BOOL |
| PALLET_COMPLETE | BOOL |
| SHEET_CMD | BOOL |
| DISCHARGE_CMD | BOOL |
| PLACE_PERMIT | BOOL |
| PALLETS_DONE | UDINT |
| ALM_NO_PALLET | BOOL |
| ALM_OVERCOUNT | BOOL |
| ALM_LAYER_STALL | BOOL |
| ALM_PATTERN_ERR | BOOL |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
PALLETIZER_CTRL commands a real actuator. It is written to sit underneath your own interlock, permissive and protection logic — not to replace it. Commission it as you would any control block you wrote yourself.
Validation evidence
- Tests
- 10
- Simulated scans
- 80
- 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
- Conforms to IEC 61499
Download PALLETIZER_CTRL — free
Create a free Ri Tech account to download the block. You get the Structured Text body, the Rockwell Add-On Instruction (.L5X), the Schneider Control Expert DFB (.XDB), PLCopen XML, the IEC 61499 function block type (.fbt) and the datasheet.
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Source is never published on this page. The implementation is released to a signed-in Ri Tech account — free of charge, but never anonymously.