ODOR_H2S_MON
Hydrogen-sulphide odour monitoring with scrubber call, minimum run time, exposure dose and latched high-level alarm.
When to use it
Use ODOR_H2S_MON when a wet well, rising-main discharge chamber, inlet works or covered channel is monitored for H2S, and a chemical or biological odour scrubber is called on when the headspace concentration rises.
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 | — |
| PPM | REAL | ppm |
| PPM_OK | BOOL | — |
| PPM_HI | REAL | ppm |
| PPM_DB | REAL | ppm |
| PPM_HH | REAL | ppm |
| MIN_RUN | TIME | — |
| POST_RUN | TIME | — |
| SCRUB_AVAIL | BOOL | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| SCRUB_CALL | BOOL | — |
| H2S_HIGH | BOOL | — |
| PEAK_PPM | REAL | ppm |
| DOSE_PPM_H | LREAL | ppm.h |
| SCRUB_H | REAL | h |
| SENSOR_VALID | BOOL | — |
| ALM_H2S_HH | BOOL | — |
| ALM_SENSOR | BOOL | — |
| ALM_NO_SCRUBBER | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 7
- Simulated scans
- 414
- 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 ODOR_H2S_MON — free
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