VLM_CAROUSEL_CTRL
Vertical lift module / carousel tray call: shortest-way-round rotation, creep approach, and a shutter that opens only on a stopped, aligned machine.
When to use it
Use VLM_CAROUSEL_CTRL when a vertical lift module, vertical carousel or horizontal carousel presents one tray at a time to an operator opening, and a tray call has to choose a direction, decelerate into the opening and gate the access shutter.
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 | — |
| INIT | BOOL | — |
| CALL | BOOL | — |
| TRAY | UINT | — |
| CUR_TRAY | UINT | — |
| DIR | BOOL | — |
| DIR_FORCE | BOOL | — |
| N_TRAYS | UINT | — |
| IN_WINDOW | BOOL | — |
| ZERO_SPD | BOOL | — |
| SHUTTER_CLOSED | BOOL | — |
| SPD_FAST | REAL | % |
| SPD_CREEP | REAL | % |
| APPROACH_TRAYS | UINT | — |
| RAMP_PCT_S | REAL | %/s |
| CALL_TMO | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| MOTOR | REAL | % |
| SHUTTER | BOOL | — |
| AT_TRAY | BOOL | — |
| REMAINING | UINT | — |
| RUN_FWD | BOOL | — |
| INITO | BOOL | — |
| CNF | BOOL | — |
| ARRIVED | BOOL | — |
| BUSY | BOOL | — |
| FAULT | BOOL | — |
| FAULT_ID | INT | — |
| VALID | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
VLM_CAROUSEL_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
- 13
- Simulated scans
- 175
- 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 VLM_CAROUSEL_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.