LYO_ENDPOINT_DET
Primary-drying endpoint by comparative pressure: arms on proven Pirani/capacitance divergence, then requires sustained, filtered convergence.
When to use it
Use LYO_ENDPOINT_DET when primary drying is ended on comparative pressure measurement — a Pirani gauge alongside a capacitance manometer — instead of on a fixed time, and declaring the endpoint early would leave ice in the cake.
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 | — |
| PIRANI | REAL | Pa |
| CM_BARATRON | REAL | Pa |
| CONVERGE_PCT | REAL | % |
| PIRANI_OK | BOOL | — |
| CM_OK | BOOL | — |
| ARM_RATIO | REAL | ratio |
| ARM_TIME | TIME | — |
| FILT_S | REAL | s |
| CONF_TIME | TIME | — |
| P_MIN | REAL | Pa |
| MAX_TIME | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| CONVERGED | BOOL | — |
| RATIO | REAL | ratio |
| DIFF_PCT | REAL | % |
| ARMED | BOOL | — |
| ELAPSED_S | REAL | s |
| ENDPOINT_S | REAL | s |
| VALID | BOOL | — |
| ALM_NO_ENDPOINT | BOOL | — |
| ALM_GAUGE_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
Validation evidence
- Tests
- 10
- Simulated scans
- 558
- 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 LYO_ENDPOINT_DET — free
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