Modbus Slave Simulator - Simulate Real Modbus Slave Devices

Overview

ModbusSlave Simulator is a professional testing tool designed specifically for industrial automation, IoT, and embedded system developers. It can simulate realityModbusSlave devices help users quickly complete communication protocol testing, data exchange verification, and system integration debugging without the need for actual hardware, greatly improving development efficiency and testing convenience.

Core functional highlights

1. Multi protocol support, flexible adaptation

• TCP/UDP/RTUFull coverage: SupportModbus TCP, UDPAndRTUThree mainstream communication modes, suitable for various application scenarios from networks to serial ports.
• Free configuration of ports and parametersCustomizable port number, baud rate, data bits, stop bits, and parity check to easily match the target master station settings.

2. Substation simulation and data simulation

• From the stationIDCustomizationSupport setting slave addresses (default 1) to simulate multiple slave devices.
• Free editing of data tablesProvide a clear address value input table, where users can directly modify register/coil addresses and corresponding values to simulate real-time slave data response.
• Format and function selectionSupports multiple data display formats and integrates commonly used function code operations to meet read-write testing requirements.

3. Real time monitoring and logging

• The communication status is clear at a glance: Through“monitor”/“Disconnect the connection”Button controls the running status of the simulator.
• Complete log recordingThe bottom communication log area displays real-time data interaction details and supports problem tracking and data analysis.

4. User friendly experience

• The interface is simple and clearUsing a light gray background and a dark green title bar, the layout is neat and the key points are highlighted.
• Intuitive and efficient operationCentralized parameter configuration, data and logs displayed on the same screen, supports one click import configuration, reduces the threshold for use.

Typical application scenarios

• Development phase testing: InPLC, SCADAIn the development of upper computer software, simulate protocol debugging of slave devices.
• Teaching and training: Used forModbusProtocol teaching, visually displaying data frames and response logic.
• Fault diagnosisWhen there is a communication problem with the actual slave station equipment, this tool can be used as a substitute to locate the master station or network failure.
• System integration verificationBefore integrating multiple devices, verify in advance whether the data read and write logic of the main station system is correct.

Mini program version, free to use!!!