DC_RECT_PLANT_CTRL
48 V rectifier plant control: temperature-compensated float, time-limited equalize, recharge current limit and rectifier N+1.
When to use it
Use DC_RECT_PLANT_CTRL when a 48 V DC plant of paralleled rectifiers floats a VRLA string and supplies a DC load, and the plant controller must hold the right bus voltage for the battery temperature while keeping enough rectifiers online to lose one.
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 | — |
| DATA_OK | BOOL | — |
| V_FLOAT | REAL | V |
| V_EQ | REAL | V |
| I_LIMIT | REAL | A |
| EQ_REQ | BOOL | — |
| EQ_MAX_T | TIME | — |
| RAW_V_BUS | REAL | V |
| RAW_I_LOAD | REAL | A |
| RAW_TEMP_C | REAL | degC |
| TEMP_OK | BOOL | — |
| TEMP_COMP_MV_C | REAL | mV/K |
| N_CELLS | USINT | — |
| V_SP_MIN | REAL | V |
| V_SP_MAX | REAL | V |
| V_LOW_ALM | REAL | V |
| RECT_OK_BITS | DWORD | — |
| N_RECT_INST | USINT | — |
| I_RECT_A | REAL | A |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| V_BUS | REAL | V |
| I_LOAD | REAL | A |
| N_RECT_OK | USINT | — |
| V_SETPOINT | REAL | V |
| I_LIMIT_CMD | REAL | A |
| MODE | USINT | — |
| EQ_ACTIVE | BOOL | — |
| RECT_REDUNDANT | BOOL | — |
| N_RECT_REQ | USINT | — |
| ALM_EQ_TMO | BOOL | — |
| ALM_SP_CLAMP | BOOL | — |
| ALM_LOW_V | BOOL | — |
| ALM_RECT_FAIL | BOOL | — |
| ALM_NO_REDUNDANCY | BOOL | — |
| ALM_TEMP_FAULT | BOOL | — |
| ALM_DATA_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
| VALID | BOOL | — |
Validation evidence
- Tests
- 10
- Simulated scans
- 131
- 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
Download DC_RECT_PLANT_CTRL — free
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