AISLE_ACCESS_INTLK
AS/RS aisle access sequence: crane inhibited and proven parked before the gate is released, and no return to automatic without a deliberate acknowledge.
When to use it
Use AISLE_ACCESS_INTLK when an automated storage and retrieval aisle, a shuttle aisle or an automated crane runway is entered through an interlocked gate, and the crane must be stopped and the aisle proven clear before anybody goes in — and must not restart when they come out.
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 |
| GATE_REQ | BOOL |
| AISLE_CLEAR | BOOL |
| AISLE_OK | BOOL |
| CRANE_PARKED | BOOL |
| GATE_CLOSED | BOOL |
| PARK_TMO | TIME |
| ACK | BOOL |
Outputs
| Port | Type |
|---|---|
| CRANE_INHIBIT | BOOL |
| GATE_RELEASE | BOOL |
| ENTRY_ACTIVE | BOOL |
| RESET_REQ | BOOL |
| ACCESS_STATE | USINT |
| ALM_PARK_TMO | BOOL |
| ALM_AISLE_FAULT | BOOL |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
AISLE_ACCESS_INTLK 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
- 11
- Simulated scans
- 164
- 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 AISLE_ACCESS_INTLK — free
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