AIRFLOW_VELOCITY_MON
Unidirectional-airflow velocity monitoring for LAF, RABS and isolator work zones.
When to use it
Use AIRFLOW_VELOCITY_MON when a laminar-flow hood, RABS or isolator protects open product by unidirectional airflow, and the velocity at the working position has to be held inside its qualified band and recorded.
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 | — |
| VEL | REAL | m/s |
| VEL_OK | BOOL | — |
| MIN | REAL | m/s |
| MAX | REAL | m/s |
| LOSS | REAL | m/s |
| AVG_S | REAL | s |
| DLY | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| OK | BOOL | — |
| VEL_AVG | REAL | m/s |
| VALID | BOOL | — |
| ALM_LOW | BOOL | — |
| ALM_HIGH | BOOL | — |
| ALM_LOSS | BOOL | — |
| ALM_VEL_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
| EXC_MINUTES | REAL | min |
Validation evidence
- Tests
- 10
- Simulated scans
- 1313
- 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
Download AIRFLOW_VELOCITY_MON — free
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