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Data Communication Test Software

 

Simply Modbus Slave

Modbus RTU Slave and Modbus ASCII Slave Software

 

Slave screenshot

 

Free download runs in demo mode with full functionality.


Demo mode allows sending and receiving six request messages.

The demo can be restarted to send and receive more messages.

 

Features

 Functions as a Modbus RTU Slave or Modbus ASCII Slave

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

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

 

       Supported Register Function codes:

Function Code Action Table Name
04 (04 hex) Read Analog Input Registers
03 (03 hex) Read Analog Output Holding Registers
06 (06 hex) Write single Analog Output Holding Register
16 (10 hex) Write multiple Analog Output Holding Registers

       Supported Coil Function codes:

Function Code Action Table Name
02 (02 hex) Read Discrete Input Contacts
01 (01 hex) Read Discrete Output Coils
05 (05 hex) Write single Discrete Output Coil
15 (0F hex) Write multiple Discrete Output Coils

 

 Change the reply data types and byte and word ordering with a click

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

Each data block 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 settings and data tables in Configuration Files.

Save the Byte History Log to a text file

and more...

See the online manual

See the tutorial to Learn about Modbus and How it Works

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Free Download

All unlicensed programs

run in demo mode

with full functionality.


Demo mode allows sending and receiving six messages.

The programs can always be restarted to reset the demo
and send and receive more messages.

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Compiler 14

SimplyModbusSlave8.0.4Install.zip
118 MB - click to download

manual

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Compiler 7

Quick Install Program. puts a shortcut in the start menu.

SimplyModbusSlave7.1Install.zip
8.88 MB - click to download

manual

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Compiler 5 - For windows XP

No Install Program. Just download, unzip and double click the exe file.

SimplyModbusSlave2.1.zip
1.75 MB - click to download

manual

Known Issue: Some users experience version 2.1 quitting by itself
or requiring an 'end task' to close properly.

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Purchase

Download the demo and try before you buy.

Quantity Simply Modbus
Slave
1 license
for 1 user or 1 PC
$60
2 licenses
for 2 users or 2 PCs
$108
site license
unlimited installations
at one location
within a single company
$225

Prices in US dollars.

 

Combine purchase with other programs for savings.

 

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