IMBALANCE_SETTLE_TRK
Settlement-interval imbalance energy and cost accounting with dual-price support and an interval-clock watchdog.
When to use it
Use IMBALANCE_SETTLE_TRK when a site settles against a scheduled position each settlement interval and needs the imbalance energy, its cost and a running period total computed on the controller — for the operator's own daily view, not as a substitute for the utility statement.
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 |
|---|---|---|
| SCHED_KWH | REAL | kWh |
| ACTUAL_KWH | REAL | kWh |
| PRICE | REAL | $/MWh |
| INTERVAL_END | BOOL | — |
| DATA_OK | BOOL | — |
| PRICE_OK | BOOL | — |
| PRICE_DEFAULT | REAL | $/MWh |
| PRICE_MIN | REAL | $/MWh |
| PRICE_MAX | REAL | $/MWh |
| SURPLUS_FRAC | REAL | - |
| INTERVAL_TMO | TIME | — |
| RESET_PERIOD | BOOL | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| IMBAL_KWH | REAL | kWh |
| COST | REAL | $ |
| PERIOD_IMBAL_KWH | REAL | kWh |
| PERIOD_ABS_KWH | REAL | kWh |
| PERIOD_COST | REAL | $ |
| AVG_ABS_KWH | REAL | kWh |
| INTERVALS | INT | — |
| MISSED_INTERVALS | INT | — |
| DEFAULTED_INTERVALS | INT | — |
| USING_DEFAULT_PRICE | BOOL | — |
| ALM_PRICE_BAD | BOOL | — |
| ALM_DATA_BAD | BOOL | — |
| ALM_NO_INTERVAL | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 9
- Simulated scans
- 96
- 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 IMBALANCE_SETTLE_TRK — 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.