Simulate Modbus
everywhere.
Modern software for Modbus device simulation with real-time data generation. Perfect for developers, students, and automation engineers.
Everything you need for Modbus simulation
Powerful tool designed for industrial environments and stress-testing SCADA systems.
Multiple Slave Support
Simulate dozens of slave devices simultaneously with independent configurations.
Data Generation
Built-in engines to generate random, sine, or custom step data for your registers.
All Register Types
Full support for Holding, Input, Discretes, and Coils with intuitive mapping.
Config Persistence
Save your server configurations and register maps to reload them instantly anytime.
Real-time Monitoring
Watch every request and data change as it happens with our low-latency engine.
Lightweight & Native
Optimized performance that doesn't drain your system resources while running.
Ready in 4 simple steps
Our interface is designed for engineers. No complex scripting required — just define your registers and go.
Configure Servers
Define IP addresses, ports, and unit IDs for your Modbus TCP or RTU simulation.
Map Registers
Easily add all registers types. Use JSON import for mass configuration.
Start Simulation
Run your environment with a single click. Simbia starts listening for client requests.
Monitor Traffic
Watch real-time packet logs and data changes in an intuitive dashboard.
Have questions about Simbia?
Whether you need a custom integration, have a feature request, or just want to say hi — I am here to help you optimize your Modbus simulations.