FILLER_CTRL
Net-weight / volumetric filler with no-container no-fill, settling capture and self-trimming cut-off.
When to use it
Use FILLER_CTRL when a rotary or linear filler doses product into a container against a load cell or a mass flow meter, the achieved quantity has to be checked against a declared tolerance, and the valve must never open without a container under it.
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 | — |
| FILL_REQ | BOOL | — |
| CONTAINER_PRESENT | BOOL | — |
| NET_WT | REAL | g |
| WT_OK | BOOL | — |
| TARGET_ML | REAL | mL |
| TOL_PCT | REAL | % |
| DENSITY | REAL | g/mL |
| SETTLE_T | TIME | — |
| FILL_TMO | TIME | — |
| TAIL_LEARN | REAL | fraction |
| TRIM_SAT_LIM | USINT | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| VALVE_CMD | BOOL | — |
| FILLING | BOOL | — |
| ACTUAL | REAL | mL |
| ACTUAL_VALID | BOOL | — |
| IN_SPEC | BOOL | — |
| REJECT | BOOL | — |
| ERR_ML | REAL | mL |
| CUTOFF_ML | REAL | mL |
| TRIM_AT_LIMIT | BOOL | — |
| FILLS | UDINT | — |
| REJECTS | UDINT | — |
| TOTAL_L | REAL | L |
| ALM_NO_CONTAINER | BOOL | — |
| ALM_FILL_TMO | BOOL | — |
| ALM_TRIM_SAT | BOOL | — |
| ALM_WT_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
Supervised control write
FILLER_CTRL commands a real actuator. It is written to sit underneath your own interlock, permissive and protection logic — not to replace it. Commission it as you would any control block you wrote yourself.
Validation evidence
- Tests
- 11
- Simulated scans
- 146
- 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 FILLER_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 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.