WELL_LEVEL_PUMP_CTRL
Lead / lag / standby pump calls from wet-well level bands, with staged shedding, lockout and a latched high-high record.
When to use it
Use WELL_LEVEL_PUMP_CTRL when a wet well is pumped down by up to three interchangeable pumps and the number of pumps to run has to be decided from level alone, with enough hysteresis that no pump short-cycles.
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 | — |
| LEVEL | REAL | % |
| LVL_OK | BOOL | — |
| LEAD_ON | REAL | % |
| LAG_ON | REAL | % |
| STBY_ON | REAL | % |
| OFF | REAL | % |
| HIHI | REAL | % |
| SHED_BAND_PCT | REAL | % |
| STAGGER_T | TIME | — |
| LOCKOUT | BOOL | — |
| ACK | BOOL | — |
Outputs
| Port | Type |
|---|---|
| N_CALL | USINT |
| HIHI_ALM | BOOL |
| LEAD_CALL | BOOL |
| LAG_CALL | BOOL |
| STBY_CALL | BOOL |
| N_WANT | USINT |
| ALM_HIHI_LATCHED | BOOL |
| ALM_LVL_FAULT | BOOL |
| ALM_CFG_ERR | BOOL |
| LOCKED_OUT | BOOL |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 8
- Simulated scans
- 701
- 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 WELL_LEVEL_PUMP_CTRL — free
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