INTERLOCK_BATCH
Batch step permit from precondition, material and equipment-clean status, with clean-hold expiry and a trip seal-in.
When to use it
Use INTERLOCK_BATCH when a batch step may only proceed when its process precondition is met, the material staged for it is the right one, and the equipment has been cleaned and is still inside its clean-hold time.
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 |
|---|---|---|
| STEP_PRECOND | BOOL | — |
| MATERIAL_OK | BOOL | — |
| EQUIP_CLEAN | BOOL | — |
| ENABLE | BOOL | — |
| STEP_RUNNING | BOOL | — |
| CLEAN_HOLD_H | REAL | h |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| PERMIT | BOOL | — |
| BLOCKED | BOOL | — |
| BLOCK_CODE | USINT | — |
| CLEAN_AGE_H | REAL | h |
| CLEAN_EXPIRED | BOOL | — |
| ALM_CLEAN_EXPIRED | BOOL | — |
| ALM_TRIP | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
INTERLOCK_BATCH 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
- 8
- Simulated scans
- 151
- 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 INTERLOCK_BATCH — free
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