RACK_DENSITY_MON
Per-rack power density against its design rating, with peak hold, a qualified over-density flag and a latched exceedance record.
When to use it
Use RACK_DENSITY_MON when a branch-circuit or rack PDU meters a single cabinet, and the cabinet has a design kW rating that the cooling design and the branch protection were both sized around.
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 | — |
| RACK_KW | REAL | kW |
| DESIGN_KW | REAL | kW |
| MTR_OK | BOOL | — |
| OVER_PCT | REAL | % |
| OVER_DB | REAL | % |
| OVER_DLY | TIME | — |
| PEAK_RESET | BOOL | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| PCT | REAL | % |
| OVER | BOOL | — |
| FREE_KW | REAL | kW |
| PEAK_KW | REAL | kW |
| VALID | BOOL | — |
| ALM_MTR_FAULT | BOOL | — |
| ALM_OVER_LATCH | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 9
- Simulated scans
- 161
- 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 RACK_DENSITY_MON — 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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Source is never published on this page. The implementation is released to a signed-in Ri Tech account — free of charge, but never anonymously.