LYO_SECONDARY_DRY
Secondary-drying stage: warm shelf ramp, in-condition hold clock, and a residual-moisture figure that says whether it was measured or modelled.
When to use it
Use LYO_SECONDARY_DRY when the secondary-drying stage of a lyophilisation cycle removes bound water at an elevated shelf temperature and the lowest achievable pressure, held for a developed time, and the residual moisture has to be trended through the stage.
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 | — |
| RUN | BOOL | — |
| SHELF_SP | REAL | degC |
| P_SP | REAL | Pa |
| HOLD_T | TIME | — |
| RAMP_C_MIN | REAL | degC/min |
| SHELF_T_PV | REAL | degC |
| SHELF_T_OK | BOOL | — |
| CHAMBER_P_PV | REAL | Pa |
| CHAMBER_P_OK | BOOL | — |
| SAFE_SHELF_C | REAL | degC |
| BAND_C | REAL | degC |
| P_BAND | REAL | Pa |
| MOIST_PV | REAL | % |
| MOIST_OK | BOOL | — |
| MOIST_TARGET | REAL | % |
| MOIST_CONF_TIME | TIME | — |
| M0_PCT | REAL | % |
| TAU_MIN | REAL | min |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| RESIDUAL_MOIST | REAL | % |
| MOIST_ESTIMATED | BOOL | — |
| SHELF_T | REAL | degC |
| CHAMBER_P | REAL | Pa |
| SHELF_CMD_C | REAL | degC |
| P_CMD | REAL | Pa |
| HOLD_ELAPSED_S | REAL | s |
| AT_COND | BOOL | — |
| RAMPING | BOOL | — |
| HOLD_DONE | BOOL | — |
| VALID | BOOL | — |
| ALM_EXCURSION | BOOL | — |
| ALM_T_FAULT | BOOL | — |
| ALM_P_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 11
- Simulated scans
- 736
- 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 LYO_SECONDARY_DRY — 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.