CARBONATION_CTRL
Carbonation control to volumes of CO2 with a Henry's-law temperature-compensated pressure setpoint and latched over-pressure.
When to use it
Use CARBONATION_CTRL when a carbo-cooler, carbonation tank or inline carbonator drives CO2 into chilled product to a volumes-CO2 specification, and both the product temperature and the saturation pressure are measured.
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 | — |
| CO2_VOL_PV | REAL | vol |
| PV_OK | BOOL | — |
| SP | REAL | vol |
| PROD_T | REAL | degC |
| T_OK | BOOL | — |
| PRESS | REAL | bar |
| PRESS_OK | BOOL | — |
| MAX_PRESS | REAL | bar |
| TRIP_MARGIN | REAL | bar |
| OP_DLY | TIME | — |
| T_MAX | REAL | degC |
| K_PRESS | REAL | %/bar |
| K_TRIM | REAL | bar/(vol*s) |
| TRIM_MAX_BAR | REAL | bar |
| DEV_VOL | REAL | vol |
| DEV_DLY | TIME | — |
| VALVE_MAX_PCT | REAL | % |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| CO2_VALVE_PCT | REAL | % |
| PRESS_SP | REAL | bar |
| PRESS_TRIM_BAR | REAL | bar |
| IN_SPEC | BOOL | — |
| VALID | BOOL | — |
| PROD_PERMIT | BOOL | — |
| ALM_OVERPRESS | BOOL | — |
| ALM_SP_CLAMP | BOOL | — |
| ALM_OFF_SPEC | BOOL | — |
| ALM_PROD_WARM | BOOL | — |
| ALM_MEAS_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 10
- Simulated scans
- 167
- 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 CARBONATION_CTRL — free
Create a free Ri Tech account to download the block. You get the Structured Text body, the Rockwell Add-On Instruction (.L5X), the Schneider Control Expert DFB (.XDB), PLCopen XML, the IEC 61499 function block type (.fbt) and the datasheet.
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Source is never published on this page. The implementation is released to a signed-in Ri Tech account — free of charge, but never anonymously.