A: Typically, the standard license is for a single user on two machines (e.g., a desktop and a laptop). Check your EULA. Site licenses are available for large teams.
Modbus Poll can be downloaded for free from the official website. In its unregistered demo state, it functions with full technical capabilities but disconnects every 10 minutes, requiring a manual restart. This is perfectly adequate for short benchmarking sessions or educational training labs.
Modbus Poll acts as a simulator. It mimics the behavior of a programmable logic controller (PLC) or SCADA host, sending query packets to slave devices (servers) and displaying the returned registers. Key Technical Features modbus+poll+key+full
: A Java-based Modbus simulator that is highly customizable and great for creating complex data topologies.
If you are looking for a "full" version without a paid license, you can use these alternatives that provide similar functionality: A: Typically, the standard license is for a
Certain advanced features are inaccessible.
A free utility designed to test Modbus slave devices. It supports Modbus RTU and TCP, handles multiple registers smoothly, and has a clean, lightweight user interface. 3. PyModbus (Python Library) Modbus Poll can be downloaded for free from
Communication over Ethernet networks using TCP port 502. Modbus UDP/IP: Connectionless communication over Ethernet. Key Features of the Full Version