MAG_FLOW_METER
Electromagnetic flow meter conditioning with empty-pipe confirmation, low-flow cutoff and pipe-velocity derivation.
When to use it
Use MAG_FLOW_METER when a magnetic flow meter on a water, sludge or final-effluent line is wired to the PLC as a 4-20 mA signal plus an empty-pipe contact, and the flow reading has to be trusted by a totaliser, a dosing loop or a district balance downstream.
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 | — |
| RAW_MA | REAL | mA |
| LRV_M3H | REAL | m3/h |
| URV_M3H | REAL | m3/h |
| BORE_MM | REAL | mm |
| EMPTY_DI | BOOL | — |
| LOW_CUT_PCT | REAL | % |
| EMPTY_CONF | TIME | — |
| VEL_MIN_MS | REAL | m/s |
| VEL_MAX_MS | REAL | m/s |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| FLOW | REAL | m3/h |
| FLOW_LPS | REAL | L/s |
| VELOCITY | REAL | m/s |
| EMPTY_PIPE | BOOL | — |
| VALID | BOOL | — |
| ALM_SIG_FAULT | BOOL | — |
| ALM_VEL_LOW | BOOL | — |
| ALM_VEL_HIGH | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
IEC 61499 event interface
EI INIT, REQ·EO INITO, CNF
Validation evidence
- Tests
- 7
- Simulated scans
- 74
- 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 MAG_FLOW_METER — 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.