PUMP_CURVE_MON
Operating point against the pump's own curve: per cent of best-efficiency flow with speed correction, deadhead and runout detection, and an off-curve deviation alarm.
When to use it
Use PUMP_CURVE_MON when a pump has both flow and discharge-head measurement and the station wants to know whether it is working near its best efficiency point, running against a closed system, running out past the end of its curve, or no longer making the head its curve says it should.
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 | — |
| RUNNING | BOOL | — |
| FLOW | REAL | m3/h |
| FLOW_OK | BOOL | — |
| HEAD | REAL | m |
| HEAD_OK | BOOL | — |
| SPEED_PCT | REAL | % |
| BEP_FLOW | REAL | m3/h |
| BEP_HEAD | REAL | m |
| SHUT_HEAD | REAL | m |
| DEADHEAD_PCT | REAL | % |
| RUNOUT_PCT | REAL | % |
| HYST_PCT | REAL | % of BEP flow |
| DEV_LIM_PCT | REAL | % |
| CONFIRM_DLY | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| PCT_BEP | REAL | % |
| HEAD_EXP | REAL | m |
| HEAD_DEV_PCT | REAL | % |
| VALID | BOOL | — |
| DEADHEAD | BOOL | — |
| RUNOUT | BOOL | — |
| ALM_OFF_CURVE | BOOL | — |
| ALM_INST_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
Validation evidence
- Tests
- 8
- Simulated scans
- 121
- 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 PUMP_CURVE_MON — free
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