MAINS_PARALLEL_PERMIT
Utility intertie permission: interface and loss-of-mains protection healthy, utility permission present, and the agreed parallel duration not yet spent.
When to use it
Use MAINS_PARALLEL_PERMIT when a generator may be paralleled with the utility only under a connection agreement — a transient closed transition, a peak-shaving window, or an export contract — and something has to decide, continuously, whether that permission stands right now.
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 |
|---|---|
| ENABLE | BOOL |
| UTILITY_PERMIT | BOOL |
| G99_HEALTHY | BOOL |
| LOM_HEALTHY | BOOL |
| ST_PARALLEL | BOOL |
| MAX_PAR | TIME |
| ACK | BOOL |
Outputs
| Port | Type | Unit |
|---|---|---|
| OK | BOOL | — |
| BLOCKED | BOOL | — |
| BLOCK_REASON | USINT | — |
| PAR_TIME_S | REAL | s |
| PAR_PCT | REAL | % |
| ALM_PAR_TIME | BOOL | — |
| ALM_PROT_UNHEALTHY | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 8
- Simulated scans
- 100
- 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 MAINS_PARALLEL_PERMIT — 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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