TUNNEL_VENT_MODE
Tunnel ventilation mode manager — standby, normal, congestion and a COMMANDED fire mode, with a pollutant-driven ventilation demand.
When to use it
Use TUNNEL_VENT_MODE when one tunnel bore or ventilation section needs a single arbitrated ventilation mode and a single ventilation demand, taking congestion from the traffic or train-detection system and fire from the fire-alarm and tunnel-safety system.
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 | — |
| FIRE_CMD | BOOL | — |
| CONGESTION_CMD | BOOL | — |
| FIRE_ZONE | USINT | — |
| N_ZONES | USINT | — |
| CO_PPM | REAL | ppm |
| AQ_OK | BOOL | — |
| CO_BASE | REAL | ppm |
| CO_SP | REAL | ppm |
| CO_ALARM | REAL | ppm |
| MIN_VENT_PCT | REAL | % |
| CONG_FACTOR | REAL | ratio |
| CONG_MIN_PCT | REAL | % |
| FAIL_VENT_PCT | REAL | % |
| CONG_OFF_DLY | TIME | — |
| ALM_DLY | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| MODE | USINT | — |
| VENT_DEMAND | REAL | % |
| FIRE_ACTIVE | BOOL | — |
| FIRE_ZONE_OUT | USINT | — |
| MODE_CHG | BOOL | — |
| VALID | BOOL | — |
| ALM_CO_HIGH | BOOL | — |
| ALM_AQ_FAULT | BOOL | — |
| ALM_ZONE_INVALID | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 11
- Simulated scans
- 153
- 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 TUNNEL_VENT_MODE — free
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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.