Simulator

4-20 mA Current Loop Simulator

Run or step a virtual process signal and observe how transmitter current, PLC raw counts, and the HMI engineering value respond to healthy and faulted loop conditions.

Simulation controls

Move the process position to preview the signal path. Toolkit or Pro Toolkit unlocks fault modes, configuration values, Run, and Step.

Process position 50%Move the transmitter manually while paused or let the simulator sweep the range.Loop condition

Raw lowToolkitRaw highToolkitEngineering lowToolkitEngineering highToolkit

Live signal path

Follow the value from the process through the transmitter, PLC input, and HMI.

Healthy loop

1. Process

50%

2. Transmitter

12 mA

3. PLC input

9831 counts

4. HMI value

50 EU

Expected current: 12 mA

Signal span: 50%

Animation tick: 0

Requires Toolkit or Pro Toolkit

Interactive controls simulators

Free preview

Change one representative condition and watch the visible preview state respond.

Paid operation

All conditions, Run, pause, Step, fault injection, and complete state transitions require paid access.

Unlocks with Toolkit or Pro Toolkit

Run and Step controls
Every fault and configuration input
Complete state transitions

View account options

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

Model boundary

This simulator demonstrates signal relationships and example fault behavior. Exact underrange, overrange, raw-count, alarming, and fail-safe behavior depends on the transmitter, input module, configuration, and control program.