DCIE_CALC
Data Centre Infrastructure Efficiency — IT load as a percentage of facility load, with its reciprocal PUE and a guarded denominator.
When to use it
Use DCIE_CALC when a site reports efficiency as a percentage rather than as PUE — commonly on an operator-facing HMI, where 67 % reads better than 1.5 — and the same two meters are available.
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 | — |
| TOTAL_KW | REAL | kW |
| IT_KW | REAL | kW |
| PWR_OK | BOOL | — |
| MIN_KW | REAL | kW |
| DCIE_LO | REAL | % |
| DCIE_DB | REAL | % |
| GAP_DLY | TIME | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| DCIE_PCT | REAL | % |
| PUE_EQUIV | REAL | kW/kW |
| VALID | BOOL | — |
| ALM_LOAD_LOW | BOOL | — |
| ALM_METER_FAULT | BOOL | — |
| ALM_IMPLAUSIBLE | BOOL | — |
| ALM_DCIE_LOW | BOOL | — |
| ALM_DATA_GAP | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 7
- Simulated scans
- 75
- 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 DCIE_CALC — 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.