ESCALATOR_SUPERV
Station escalator / passenger-conveyor supervision: availability, start proving, motor-load overload and underload supervision, run-hour and start accounting.
When to use it
Use ESCALATOR_SUPERV when a station escalator or passenger conveyor (moving walk) is started and stopped by the station control system, and the operations control centre needs its availability, its faults and its duty accounting without being sent everything the escalator controller sees. NOT for lifts, counterbalanced hoists or any drive whose normal running load can approach zero, unless the underload element is disabled with UDL_EN — see the notes.
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 | — |
| RUN_REQ | BOOL | — |
| RUNNING | BOOL | — |
| FAULT_SW | BOOL | — |
| LOAD | REAL | % |
| LOAD_OK | BOOL | — |
| ESTOP_PB | BOOL | — |
| OVERLOAD_PCT | REAL | % |
| OVERLOAD_TMO | TIME | — |
| UDL_EN | BOOL | — |
| UNDERLOAD_PCT | REAL | % |
| UNDERLOAD_TMO | TIME | — |
| START_TMO | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| OK | BOOL | — |
| ESTOP | BOOL | — |
| RUN_PERMIT | BOOL | — |
| RUN_SECS | UDINT | — |
| RUN_HOURS | REAL | h |
| STARTS | UDINT | — |
| ALM_FAULT | BOOL | — |
| ALM_OVERLOAD | BOOL | — |
| ALM_UNDERLOAD | BOOL | — |
| ALM_START_FAIL | BOOL | — |
| ALM_LOAD_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
ESCALATOR_SUPERV 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
- 12
- Simulated scans
- 36400
- 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 ESCALATOR_SUPERV — free
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