Blocks

The Battery SOC EKF block estimates the state of charge of a battery cell from two signals a battery management system actually has: the current and t

The Kalman Filter block estimates the hidden state of a linear system from a noisy measurement. Each sample it predicts where the state should be from

Execute custom **JavaScript** or **Python** logic inside the simulation loop. Define your own input and output ports — they become live variables in y

The Bode Plot block performs a frequency response analysis of a linear system. It generates two simultaneous plots: 1. **Magnitude (dB)** vs Frequenc

The Nyquist Plot block visualizes the frequency response of a system as a polar plot in the complex plane. It plots the real part of the frequency res

BronkhorstMFC is a **source** block (with an optional setpoint sink) that reads live flow, temperature, frequency, and alarm data from a physical Bron

RemoteSensor is a **source** block that streams live inertial and optional sensor data from a paired mobile device into the simulation over a WebRTC p

PhoneController is a **source** block that turns any smartphone into a wireless joystick plus an independent yaw dial. When the block is placed on the

Standard second-order system transfer function: ``` G(s) = ωₙ² / (s² + 2ζωₙs + ωₙ²) ``` This block models damped oscillatory systems commonly found

The Derivative block computes the numerical time derivative (rate of change) of an input signal using backward difference approximation. An optional l

The Integrator block computes the time integral (accumulated sum) of an input signal. It is the inverse operation to the Derivative block and is essen

Lead-lag compensator with transfer function G(s) = (τ₁s + 1) / (τ₂s + 1). When τ₁ > τ₂ it acts as a lead compensator (phase advance), when τ₁ < τ₂ it

The PID Controller block implements a standard Proportional-Integral-Derivative controller for closed-loop feedback control. It combines three control

The **StateSpace** block implements a general state-space linear system described by matrices A, B, C, D: ``` x' = Ax + Bu (state equation) y = C

The Transfer Function block implements linear time-invariant (LTI) systems described in the Laplace domain. It takes a transfer function H(s) = num(s)

The **ZeroPole** block represents a transfer function using its poles and zeros: ``` H(s) = K · (s - z₁)(s - z₂)...(s - zₘ) / (s - p₁)(s - p₂)...(s -

Models mechanical backlash (play/speling). The output stays constant until the input moves more than half the deadband width away from the current out

Implements a dead zone (dead band) nonlinearity. The output is zero when the input is within the specified band. Outside the band, the output is the i

Rounds the input signal to the nearest multiple of a specified interval, producing a staircase-like output. Models ADC resolution, digital sensor quan

Limits the rate of change (slew rate) of the output signal. The output follows the input but cannot change faster than the specified rising or falling

A hysteresis switch that toggles between two output values. Turns on when input rises above the switch-on point, and turns off when input falls below

The Saturation block implements a limiter or saturation function that clamps the input signal between specified lower and upper limits. This is essent

The `DigitalFilter` block is a highly advanced signal processing tool designed to filter discrete-time signals during a simulation. It supports variou

Discrete-time integrator that accumulates the input signal over time. Equivalent to a running sum scaled by the sample time.

Computes the discrete-time derivative (backward difference) of the input signal. Outputs zero on the first sample.

The Discrete State-Space block implements a discrete-time linear state-space system. At each sample instant it advances the internal state vector usin

Implements a discrete-time transfer function H(z) = B(z)/A(z) using the Direct Form II Transposed structure. Coefficients are specified as space-separ

Sample-and-hold block that samples the input at regular intervals and holds or interpolates the value between samples.

Delays the input signal by exactly one sample period (z⁻¹ operator). This is the fundamental building block for discrete-time systems, digital filters

The Delay block introduces a fixed time delay (transport lag) to the input signal. This models communication delays, sensor latency, processing time,

The Input Shaper removes the swing from a move. A crane that jerks its trolley to a new position sets the hanging load swinging, and the operator wait

The Smith Predictor compensates for dead time — the transport delay between acting on a process and seeing the result, like the hot water that takes s

The Area block serves as a visual grouping area on the canvas. It allows you to organize blocks logically and apply a background color to visually dis

The Text Note block is a frameless text annotation tool for adding comments, explanations, or labels directly onto the diagram canvas. Like the Area b

The Comparator block compares an input signal to a threshold and outputs a binary result: 1 (true) if the comparison is satisfied, 0 (false) otherwise

Detects changes in the input signal. Can detect rising edges (input increases), falling edges (input decreases), or any change.

Tests whether the input signal falls within a specified interval. Outputs 1 if inside, 0 if outside.

The **LogicGate** block provides 4 fundamental logic operations in a single configurable block: - **AND** - All inputs must be true (non-zero) - **OR

The Switch block selects between two input signals based on a selector signal. If the selector is non-negative (≥ 0), it outputs the first input; othe

The 2-D Lookup Table block maps two input values (x, y) to an output value using bilinear interpolation within a predefined grid of data points. It is

The Absolute Value block computes the magnitude (absolute value) of the input signal. The output is always non-negative regardless of input sign. This

The Divide block performs algebraic division of two input signals: the numerator and the denominator. This block includes built-in protection against

The Gain block multiplies its input signal by a constant gain factor (K). This is one of the most fundamental and commonly used blocks in signal proce

The Hill Equation block is the sigmoidal Emax model of pharmacodynamics: it turns a drug concentration at the site of action into the effect that conc

1-D lookup table with linear interpolation. Maps input values to output values using a set of breakpoints and corresponding table data.

Applies a selectable mathematical function to the input signal. Supports exponential, logarithmic, power, remainder, and rounding operations.

Outputs the minimum or maximum of all connected input signals. Useful for signal selection, protection logic, and envelope detection.

The Product block multiplies multiple input signals together, producing their algebraic product as output. This is a fundamental mathematical operatio

The SquareRoot block calculates the n-th root of the input signal. While named SquareRoot for common usage (where n=2), it is a versatile root-calcula

The Subtraction block performs algebraic subtraction of two input signals: output = plus - minus. This provides an explicit and intuitive alternative

The Sum block adds multiple input signals together, producing their algebraic sum as output. This is one of the most fundamental mathematical operatio

The **Trigonometric** block provides 7 trigonometric functions in a single configurable block: - **sin(x)** - Sine - **cos(x)** - Cosine - **tan(x)**

Copies the input signal to multiple outputs. All outputs receive the same value as the input. Useful for fan-out scenarios where one signal needs to d

Receives a signal wirelessly from a matching Goto block. Use Goto/From pairs to create virtual connections that reduce diagram clutter.

Sends a signal wirelessly to matching From blocks. Use Goto/From pairs to create virtual connections that reduce diagram clutter.

Combines multiple scalar input signals into a single output. The output is the sum of all connected inputs.

Selects one of multiple input signals based on an index value.

The **FFT Scope** displays the frequency spectrum of one or more signals using the Fast Fourier Transform (FFT). It is a sink block — it has no output

The Gauge block renders an analog semicircular dial with a rotating needle, showing the instantaneous value of the connected signal relative to a user

The Histogram block accumulates incoming scalar values over the simulation run and renders their frequency distribution as a bar histogram. Values are

The NumericDisplay block provides a digital LCD-style readout for displaying numeric values from your simulation in real-time. It reads the input valu

The ScatterPlot block plots pairs of scalar values as individual points in a two-dimensional plane. At each simulation step, the current values of the

Real-time signal plotting block with configurable update frequency and rendering modes. Displays signals directly in the block diagram for interactive

The XYPlot block plots two real-time scalar signals against each other in a phase-plane view, retaining a configurable number of the most recent sampl

Outputs the current simulation time as a signal. Essential for creating time-dependent systems, lookup tables, or simply monitoring simulation progres

The Constant block is a fundamental signal source that provides a steady numerical output value throughout the entire simulation. It has no input port

Interactive 2-axis joystick. Drag the knob — also **while the simulation is running** — and both outputs follow immediately. Placing a Joystick (or an

Interactive keyboard source. Click the block to **arm** it, then steer with the arrow keys or WASD — also while the simulation runs. Placing a Keyboar

The Pulse Generator block creates square wave pulse signals with configurable parameters. It generates periodic pulses that alternate between high and

The Ramp block generates a linearly increasing signal that starts at a specified time and increases at a constant rate (slope). This block is commonly

Generates pseudo-random numbers using a deterministic PRNG (xorshift64). Supports uniform and gaussian distributions. Same seed produces identical seq

The SignalGenerator block is a versatile signal source that generates various types of time-varying signals for simulation and testing purposes. It ca

Interactive on-canvas slider source. Drag the handle — also **while the simulation is running** — and the output follows immediately. Placing a Slider

The Step block generates a step function signal that transitions from an initial value to a final value at a specified time. This block is commonly us

The **InPort** (Input Port) block defines an **input interface** for a Subsystem. It receives values from outside the subsystem and makes them availab

The **OutPort** (Output Port) block defines an **output interface** for a Subsystem. It receives values from internal blocks and makes them available

The Subsystem block creates a **hierarchical encapsulation** of blocks, allowing you to group complex control logic into reusable, self-contained unit

The Assertion block monitors a signal at every simulation step and checks whether it satisfies a user-defined property. When the condition holds the o

The 3D Gimbal block renders a real-time WebGL visualization of three nested gimbal rings that respond live to Roll, Pitch, and Yaw input signals. The