PASTEURIZER_CTRL
HTST pasteuriser hold-tube supervision with flow diversion below the legal cut-in temperature.
When to use it
Use PASTEURIZER_CTRL when a continuous HTST pasteuriser holds product in a hold tube and a flow diversion valve must send product forward only while the hold-tube outlet temperature has been at or above the legal cut-in temperature for the full residence time.
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 | — |
| PROD_T | REAL | °C |
| TEMP_OK | BOOL | — |
| SP | REAL | °C |
| DIVERT_T | REAL | °C |
| HOLD_T | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| STV_POS | BOOL | — |
| IN_SPEC | BOOL | — |
| DIVERTED | BOOL | — |
| HOLD_PROVEN | BOOL | — |
| ALM_UNDER_TEMP | BOOL | — |
| ALM_TEMP_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
| DIVERT_TIME_S | REAL | s |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 9
- Simulated scans
- 200
- 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 PASTEURIZER_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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