Open ModScan: A Comprehensive Modbus Master Tool

The importance of Modbus communication protocol as a widely used protocol in the field of industrial automation is self-evident. In order to simplify the implementation and debugging process of Modbus communication, Open ModScan was born. It is a free Modbus master (client) tool that supports Modbus TCP and Modbus RTU protocols. This article will provide a detailed introduction to the features, usage methods, and open-source license agreement of Open ModScan.

Functional characteristics

Open ModScanProvided a series ofModbusFunction, enabling users to easily communicate withModbusCommunicate and exchange data with station equipment.

BasicModbusFunction

• 0x01 - Read the coilRead the status of the digital output.
• 0x02 - Read discrete inputsRead the status of digital input.
• 0x05 - Write a single coilModify the state of digital output.
• 0x0F - Write multiple coilsBatch modify the status of digital output.
• 0x03 - Read and hold registersRead the value of the analog output.
• 0x04 - Read the input registerRead the value of the analog input.
• 0x06 - Write a single registerModify the value of the simulated output.
• 0x10 - Write multiple registersBatch modify simulated output values.
• 0x16 - Mask write registerUse a mask to modify the specific bit of a register.

Extended functionality

• ModbusAddress scanningAutomatically scan on the networkModbusEquipment, quickly discover and identify available slave devices.
• ModbusScanner: Support forModbus RTUAndModbus TCPScan the protocol to help users quickly locate and diagnose issues.
• ModbusMessage parser: AnalysisModbusMessage, providing detailed packet information for users to analyze and debug.
• ModbusUser messagesAllow users to customizeModbusMessage, perform more complex communication operations.

Build and use

Open ModScanuseQt/qmake(Version5.15and above) orQt CreatorBuild and supportMicrosoft WindowsAndLinuxOperating system. Users can choose the corresponding construction method based on their operating system.

Open source license

Open ModScanFollowMITLicense means that anyone can obtain the source code for free and freely use, copy, modify, merge, publish, distribute, sublicense, and/or sell the software while complying with the license terms. Meanwhile, the software is“Original form”Provided without any form of warranty, including but not limited to warranties of merchantability, fitness for a particular purpose, and non infringement.

Conclusion

Open ModScanIt is a powerfulModbusThe main station tool provides a complete solution for automation engineers and developers to facilitate implementationModbusTesting, debugging, and data collection of communication. Its open-source nature and flexible functionality make it a valuable resource in the field of industrial automation. Whether in the early stage of device exploration or in the later stage of communication protocol implementation,Open ModScanCan provide effective support.