WFI_LOOP_MON
WFI distribution-loop monitor — TOC, USP <645> temperature-stepped conductivity and hot-loop temperature, with a use permissive.
When to use it
Use WFI_LOOP_MON when a water-for-injection distribution loop carries on-line TOC and conductivity analysers and a return-temperature element, and the control system has to hold a continuous use permissive for the points of use on the loop.
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 |
|---|---|---|
| PARAMS | STRING | — |
| TOC_PV | REAL | ppb |
| TOC_OK | BOOL | — |
| COND_PV | REAL | uS/cm |
| COND_OK | BOOL | — |
| TEMP_PV | REAL | degC |
| TEMP_OK | BOOL | — |
| TOC_LIM | REAL | ppb |
| COND_LIM | REAL | uS/cm |
| TEMP_MIN | REAL | degC |
| CONFIRM | TIME | — |
| RETURN_DLY | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| TOC | REAL | ppb |
| COND | REAL | uS/cm |
| TEMP | REAL | degC |
| OK | BOOL | — |
| COND_LIM_APPL | REAL | uS/cm |
| VALID | BOOL | — |
| ALM_TOC_HIGH | BOOL | — |
| ALM_COND_HIGH | BOOL | — |
| ALM_TEMP_LOW | BOOL | — |
| ALM_SENSOR_FAULT | BOOL | — |
| ALM_TEMP_RANGE | BOOL | — |
Validation evidence
- Tests
- 9
- Simulated scans
- 226
- 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 WFI_LOOP_MON — free
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