Analog signals · Define → Analyze → Verify

Analog Scaling Workbench

Scale PLC raw inputs to engineering units, detect underrange and overrange, calculate expected raw counts, and verify 4-20 mA or 0-10 V channel behavior.

Tested calculation logicBeginner + professional viewsInteractive preview

Workspace density

Both views use the same tested calculation logic.

Define

Signal and range

Use the channel configuration—not a remembered platform default. Live-zero signals reserve the first part of the electrical span for fault detection.

Signal type Toolkit4–20 mA supports live-zero commissioning checks.Engineering units ToolkitFor example PSI, °C, GPM, or mm.Raw inputCurrent count read from the PLC channelRaw minimumToolkitCount that represents engineering minimumRaw maximumToolkitCount that represents engineering maximumEngineering minimumToolkitLowest process valueEngineering maximumToolkitHighest process valueDisplay decimalsToolkitResult precision from 0 through 6

Clamp output to engineering range Keep the displayed value inside the configured engineering span while preserving the unclamped diagnostic value.

Analyze

Calculated result

Engineering valueNormal

80.61 PSI

Signal position80.606% span

0 PSI100 PSI

Expected raw value at target Toolkit

PSI

Expected PLC raw count9830.5

Requires Toolkit or Pro Toolkit

Analog scaling results and commissioning

Free preview

Change the raw value and watch the real scaled result update against fixed example ranges.

Paid operation

Editable raw and engineering ranges, precision, clamping, copy actions, and commissioning helpers require paid access.

Unlocks with Toolkit or Pro Toolkit

Editable range configuration
Precision and clamping controls
Copy-ready output

Toolkit $5/mo · Pro Toolkit $15/mo

Toolkit unlocks advanced tool operation. Pro Toolkit adds the troubleshooting knowledge base, field-document builders, and included library downloads.

Compare plans and unlock

Entitlement store: unavailable. No saved presets, saved settings, or customer tool history are stored in V1.

Supporting knowledge-base guides

Start with a public worked example, then use the complete Pro procedure for commissioning and troubleshooting.

4-20 mA topic hubPublic scaling diagram, platform comparison, FAQs, and supporting guides.4-20 mA scaling formulaLinear scaling, live-zero handling, and a 12 mA worked example.Allen-Bradley raw countsInterpret module representations without assuming one universal count range.Siemens 0-27648 scalingNormalize Siemens nominal analog values into engineering units.Underrange and overrangeSeparate process values from wiring and instrument fault indications.