| Software | Features | Pricing | | --- | --- | --- | | Simply Modbus Master 812 | Multi-protocol support, data logging, alarm/notification, user-defined scripts | $50-$100 ( license key) | | Modbus Poll | Multi-protocol support, data logging, alarm/notification | $50-$200 ( license key) | | Modbus Reader | Multi-protocol support, data logging | Free (open-source) | | MBSlave | Multi-protocol support, data logging, alarm/notification | $20-$50 ( license key) |
The software functions as a Modbus RTU Master or Modbus ASCII Master, connecting to slave devices via your PC's serial port. Here's what it can do:
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An open-source, graphical Modbus master application based on the Qt framework. It supports both Modbus RTU and TCP, includes a useful bus monitor for examining raw data packets, and runs smoothly across Windows and Linux. 2. Modpoll
: Legitimate software ensures stability and security. | Software | Features | Pricing | |
Version 8.1.2 remains highly popular because of its lightweight footprint and straightforward interface. Key capabilities of this version include:
Cracks usually contain trojans that steal system data. It supports both Modbus RTU and TCP, includes
These tools are completely free to use and are often under active development by a community of users.
If you're looking for a free solution, consider checking if there are free or open-source Modbus master tools available. Some developers offer free versions of their software with limited features or provide the source code for community-driven development and support.
A valid license key completely removes the timeout restrictions. You can leave the application running indefinitely. This is crucial for stress-testing network infrastructure, monitoring thermal variations over time, or tracking intermittent slave device telemetry. 2. Full Register Range Access