Data Communication Test Software

Simply the easiest way to test and debug Modbus systems

Simply Modbus Master

Modbus RTU Master and Modbus ASCII Master Software

Free download runs in demonstration mode with full functionality.
Demonstration mode requires a program restart to send more than four requests.

Features

 · Functions as a Modbus RTU Master or Modbus ASCII Master

 · Connects to RTU or ASCII Slave devices using Modibus protocol

· All information is entered and displayed in one window.

· Displays the traffic on the serial port.

· Supported Function codes:

 · Change data types and byte and word ordering with a click
to determine the format of the reply string without repolling.

· Supports multiple data types in the same message.

 · Supports Standard Modbus and Enron Modbus

·  Can include RTS delay (required for some radios)

· Supports 2 byte slave IDs

· A notes column allows labelling the results

·  Allows saving and restoring configuration settings

·  Write window allows writing single and multiple values

·  Save the communication log to a text file

and more...

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Version 6.3.6 has no install program. Just download, unzip the exe file and run.

SimplyModbusMaster6.3.6.zip
1.66 MB - click to download

Some users experience issues with version 6.3.6 quitting by itself or requiring an 'end task' to close properly.

If this is a problem, version 7.0 should help.

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Version 7.0  has a quick install program.

SimplyModbusMaster7.0Install.zip
8.78 MB - click to download

Version 7.0 will work in Windows 7 using 'Virtual XP mode'

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See the online manual

Download the demo and try before you buy.

See the tutorial to Learn about Modbus and How it Works

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