ABB_REL670_PDIS
Three-zone quadrilateral distance element with reactance reach, resistive blinders, a tilted directional line, faulted-loop selection and VT-failure blocking.
When to use it
Use ABB_REL670_PDIS when a transmission or sub-transmission line needs impedance-based protection with an under-reaching instantaneous zone and time-delayed backup zones, and the measurement chain can supply the angle between voltage and current for each phase loop.
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 |
|---|---|---|
| Va | REAL | V |
| Vb | REAL | V |
| Vc | REAL | V |
| Ia | REAL | A |
| Ib | REAL | A |
| Ic | REAL | A |
| Zr | REAL | ohm |
| PHI_A | REAL | deg |
| PHI_B | REAL | deg |
| PHI_C | REAL | deg |
| ANG_LINE | REAL | deg |
| RF_REACH | REAL | ohm |
| ANG_DIR | REAL | deg |
| Z2_MULT | REAL | xZr |
| Z3_MULT | REAL | xZr |
| T1 | TIME | — |
| T2 | TIME | — |
| T3 | TIME | — |
| IMIN | REAL | A |
| BLK | BOOL | — |
| ENABLE | BOOL | — |
| CT_OK | BOOL | — |
| VT_OK | BOOL | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| TRIP | BOOL | — |
| zone | INT | — |
| Zm | REAL | ohm |
| R_MEAS | REAL | ohm |
| X_MEAS | REAL | ohm |
| FLT_LOOP | INT | — |
| START | BOOL | — |
| VALID | BOOL | — |
| BLOCKED | BOOL | — |
| ALM_VT_FAIL | BOOL | — |
| ALM_MEAS_FAULT | BOOL | — |
| ALM_NO_LOOP | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
ABB_REL670_PDIS 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
- 82
- 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 ABB_REL670_PDIS — 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.
Every block in the catalogue is free to download, in every format, with no purchase and no card. Browsing needs no account at all; downloading needs a signed-in one, so the block lands in your library and re-downloads whenever you need it.
Source is never published on this page. The implementation is released to a signed-in Ri Tech account — free of charge, but never anonymously.