CAS Modbus Scanner vs Modbus Poll

CAS Modbus Scanner — CAS Modbus Scanner is an open-source Modbus master simulator and test utility for validating Modbus slave devices and networks. It allows interrogating, testing and simulating Modbus devices over seri

Modbus Poll — Modbus Poll is an open-source software tool for testing and debugging Modbus slave devices. It can poll Modbus devices via serial port, TCP, and UDP connections, read and write data, and log traffic.

CAS Modbus Scanner offers Scans Modbus slave devices on serial and TCP networks, Sends any Modbus function code to slaves, Logs all request/response messages, Supports RTU, ASCII, TCP, and UDP transport layers, User-friendly GUI for easy operation, while Modbus Poll provides Polling Modbus slave devices, Reading and writing data, Connecting via serial, TCP, UDP, Device simulation, Traffic logging.

CAS Modbus Scanner stands out for Free and open source, Easy to use interface, Supports wide range of Modbus devices and networks; Modbus Poll is known for Free and open source, Cross-platform (Windows, Linux, macOS), Supports multiple Modbus variants.

Feature	CAS Modbus Scanner	Modbus Poll
Overall Score	N/A	N/A
Primary Category	Development	Network & Admin
Pricing	Open Source	Open Source

Product Overview

CAS Modbus Scanner

Description: CAS Modbus Scanner is an open-source Modbus master simulator and test utility for validating Modbus slave devices and networks. It allows interrogating, testing and simulating Modbus devices over serial line, TCP/IP, and UDP connections.

Modbus Poll

Description: Modbus Poll is an open-source software tool for testing and debugging Modbus slave devices. It can poll Modbus devices via serial port, TCP, and UDP connections, read and write data, and log traffic. Useful for factory testing, diagnostics, device simulation, SCADA development, etc.

Key Features Comparison

CAS Modbus Scanner Features

• Scans Modbus slave devices on serial and TCP networks
• Sends any Modbus function code to slaves
• Logs all request/response messages
• Supports RTU, ASCII, TCP, and UDP transport layers
• User-friendly GUI for easy operation
• Open source and cross-platform (Windows, Linux, macOS)

Modbus Poll Features

• Polling Modbus slave devices
• Reading and writing data
• Connecting via serial, TCP, UDP
• Device simulation
• Traffic logging

Pros & Cons Analysis

CAS Modbus Scanner

Pros

• Free and open source
• Easy to use interface
• Supports wide range of Modbus devices and networks
• Allows testing and simulation without physical devices
• Cross-platform compatibility

Cons

• Limited reporting and data exporting capabilities
• No scripting or automation features
• Less features than commercial Modbus tools
• Requires some Modbus knowledge for advanced use cases

Modbus Poll

Pros

• Free and open source
• Cross-platform (Windows, Linux, macOS)
• Supports multiple Modbus variants
• Easy to use interface
• Powerful debugging capabilities

Cons

• Limited to Modbus protocol only
• No support for master/client simulation
• Minimal documentation
• User interface is dated

Pricing Comparison

CAS Modbus Scanner

• Open Source

Modbus Poll

• Open Source