CCS_SEQUENCE
CCS / ISO 15118 plug-to-transfer sequence with per-stage timeouts, cable check, measured precharge and orderly shutdown.
When to use it
Use CCS_SEQUENCE when a CCS DC charging point has to walk a session from plug insertion through SLAC, the ISO 15118 / DIN 70121 session, the insulation cable check and precharge to energy transfer, and every stage has to be able to give up and say which one failed.
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 | — |
| PLUGGED | BOOL | — |
| SLAC_OK | BOOL | — |
| ISO15118_OK | BOOL | — |
| ISO_OK | BOOL | — |
| BATT_REQ_V | REAL | V |
| BATT_REQ_A | REAL | A |
| DC_LINK_V | REAL | V |
| LINK_V_OK | BOOL | — |
| PRECHG_DV | REAL | V |
| SLAC_TMO | TIME | — |
| SESSION_TMO | TIME | — |
| CHECK_TMO | TIME | — |
| CHECK_DWELL | TIME | — |
| PRECHG_TMO | TIME | — |
| SHUTDOWN_T | TIME | — |
| DECAY_T | TIME | — |
| STOP_REQ | BOOL | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| STAGE | USINT | — |
| PRECHARGE_OK | BOOL | — |
| ENERGY_TX | BOOL | — |
| PRECHARGE_CMD | BOOL | — |
| DC_CONTACTOR | BOOL | — |
| V_DELTA | REAL | V |
| V_DELTA_VALID | BOOL | — |
| FAULTED | BOOL | — |
| ALM_SEQ_TMO | BOOL | — |
| FAIL_STAGE | USINT | — |
| ALM_ISO_FAULT | BOOL | — |
| ALM_REQ_INVALID | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Supervised control write
CCS_SEQUENCE 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
- 9
- Simulated scans
- 149
- 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 CCS_SEQUENCE — 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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