Data Communication Test Software

Simply the easiest way to test and debug Modbus systems

Simply Modbus Slave

Modbus RTU Slave and Modbus ASCII Slave Software

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

Features

 · Functions as a Modbus RTU or Modbus ASCII Slave

· Monitors for requests from an RTU/ASCII Master devices
using Modibus protocol

· Settings are entered and displayed in one window with a 2nd window for the data.

· Displays the traffic on the serial port.

 · Set the data types and byte and word ordering of the reply with a click

· Supported Function codes:

· 4 data blocks for registers.
· 2 data blocks for coils.

· each data blocks can have a different data type

 · Supports Standard Modbus and Enron Modbus registers.

·  Allows adding random noise to the data so each response is unique.

·  Allows saving and restoring configuration settings to a csv file.

·  Save the communication log to a text file.

and more...

-------------------------

Version 2.0.4 has no install program. Just download, unzip the exe file and run.

SimplyModbusSlave2.0.4.zip
1.74 MB - click to download

Some users experience issues with version 2.0.4 quitting by itself or requiring an 'end task' to close properly.

If this is a problem, version 7.0.1 should help.

-------------------------

Version 7.0.1  has a quick install program.

SimplyModbusSlave7.0.1Install.zip
8.88 MB - click to download

Version 7.0.1 will work in Windows 7 using 'Virtual XP mode'

-------------------------

See the online manual

Download and try the demo before you buy.

See the tutorial to Learn about Modbus and How it Works

Home • FAQ • Enron • Download • Register • Contact