AC_CHARGER_CTRL
Mode 3 AC contactor control with residual-current latching, weld and fail-to-close detection and session energy metering.
When to use it
Use AC_CHARGER_CTRL when an AC charging point's supply contactor has to be commanded, proved and protected — the residual-current monitor must latch the point out rather than reclosing, a welded or stuck contactor has to be detected, and the session energy has to be metered for billing.
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 | — |
| PILOT_STATE | USINT | — |
| AUTH_OK | BOOL | — |
| PILOT_OK | BOOL | — |
| VENT_OK | BOOL | — |
| PHASES | USINT | — |
| MAX_A | REAL | A |
| SITE_LIMIT_A | REAL | A |
| MIN_A | REAL | A |
| RCM_OK | BOOL | — |
| CONTACTOR_FB | BOOL | — |
| FB_TMO | TIME | — |
| I_MEAS_A | REAL | A |
| V_LN | REAL | V |
| PF | REAL | ratio |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| CONTACTOR | BOOL | — |
| OFFERED_A | REAL | A |
| OFFERED_VALID | BOOL | — |
| CHARGING | BOOL | — |
| POWER_KW | REAL | kW |
| ENERGY_KWH | REAL | kWh |
| ALM_RCM_TRIP | BOOL | — |
| ALM_WELD | BOOL | — |
| ALM_NO_CLOSE | BOOL | — |
| ALM_VENT_REQ | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
AC_CHARGER_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
- 10
- Simulated scans
- 128
- 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 AC_CHARGER_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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