SIP_79_AR
SIPROTEC-shaped auto-reclose sequencer (ANSI 79): up to three shots with an individual dead time each, a pulsed close command, a reclaim window, breaker-open and breaker-ready supervision, and a lockout that only an operator reset releases.
When to use it
Use SIP_79_AR when an overhead feeder's breaker is to be reclosed automatically after a protection trip, and the reclose sequence — dead times, shot counting, reclaim window and lockout — has to live in the PLC or be modelled there.
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 |
|---|---|
| shots | INT |
| tDead1 | TIME |
| tReclaim | TIME |
| BLK | BOOL |
| TRIP | BOOL |
| CBclosed | BOOL |
| ENABLE | BOOL |
| CB_READY | BOOL |
| tDead2 | TIME |
| tDead3 | TIME |
| tClose | TIME |
| tReady | TIME |
| ACK | BOOL |
Outputs
| Port | Type |
|---|---|
| close | BOOL |
| inProg | BOOL |
| lockout | BOOL |
| state | INT |
| shotCount | INT |
| maxShots | INT |
| ALM_CB_STUCK | BOOL |
| ALM_CB_NOT_READY | BOOL |
| ALM_CB_NO_CLOSE | BOOL |
| BLOCKED | BOOL |
| ALM_CFG_ERR | BOOL |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
SIP_79_AR 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
- 12
- Simulated scans
- 386
- 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 SIP_79_AR — 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.