HW_RESET_CTRL
Hot-water supply-temperature outdoor-air reset schedule with a rate-limited setpoint.
When to use it
Use HW_RESET_CTRL when a hot-water plant, a heating zone or a radiant loop needs its supply setpoint scheduled against outdoor air, independently of whatever stages the heat source.
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 | — |
| OA_TEMP | REAL | °C |
| OA_OK | BOOL | — |
| OA_LOW | REAL | °C |
| OA_HIGH | REAL | °C |
| SP_MAX | REAL | °C |
| SP_MIN | REAL | °C |
| RATE_K_MIN | REAL | K/min |
Outputs
| Port | Type | Unit |
|---|---|---|
| HW_SP | REAL | °C |
| VALID | BOOL | — |
| ALM_OA_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 7
- Simulated scans
- 116
- 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 HW_RESET_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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