Menu /
: Each device on the network must be configured with a unique address (slave ID) and the communication parameters (baud rate, parity, stop bits).
| License | Use | |--------|-----| | | One named user, up to 3 PCs. | | Site License | Unlimited users at one physical address. | | Educational | Discounted for schools (contact sales). |
Modbus Poll is a widely-used commercial Modbus master simulator developed by for testing and debugging slave devices. While it is a paid product, it is recognized for its robust graphical user interface (GUI) and professional features. Modbus Poll License and "Full" Version modbus+poll+key+full
: Entering a valid license key removes the 10-minute timeout and the 30-day evaluation limit, allowing for continuous polling and long-term data logging.
To change a value, double-click the register value and enter a new number. You can write to Coils or Holding Registers. : Each device on the network must be
Obtaining a (legally) is essential for any professional working with Modbus RTU or TCP. It transforms a simple trial tool into a robust, reliable, and comprehensive testing platform, saving valuable time in debugging and commissioning industrial systems.
I can provide step-by-step guides for setting up your communication architecture. Share public link | | Educational | Discounted for schools (contact sales)
used by engineers to test, simulate, and debug Modbus slave devices. It allows users to read and write data in various formats and supports multiple connection types including Serial, TCP/IP, and UDP/IP. Modbus Tools 1. Installation and Licensing System Requirements : Runs on any PC with Windows 10 or 11.
To ensure efficient and reliable Modbus communication:
| Software | Free? | Key Feature | |----------|-------|-------------| | | Yes | Open-source, basic Modbus TCP/RTU master. | | CAS Modbus Scanner | Limited | Free for 30 days, simple UI. | | Simply Modbus | No | Cheaper (~$49) but fewer features. | | Node-RED | Yes | Web-based, good for automation. |
Getting started with a legitimate version of Modbus Poll involves a few simple configuration steps: