Functions as a Modbus RTU Master or Modbus ASCII Master

Connects to RTU or ASCII Slave devices using the Modbus protocol

All information to send and receive messages is displayed in one window.

Supported Register Function codes:

Function CodeActionTable Name
04 (04 hex)ReadAnalog Input Registers
03 (03 hex)ReadAnalog Output Holding Registers
06 (06 hex)Write singleAnalog Output Holding Register
16 (10 hex)Write multipleAnalog Output Holding Registers

Supported Coil Function codes:

Function CodeActionTable Name
02 (02 hex)ReadDiscrete Input Contacts
01 (01 hex)ReadDiscrete Output Coils
05 (05 hex)Write singleDiscrete Output Coil
15 (0F hex)Write multipleDiscrete Output Coils

Change the reply data types and byte and word ordering with a click
to determine the format of a reply string without having to send another message.

Supports multiple data types in the same message.

Supports Standard Modbus and Enron Modbus

Can use RTS delay (required for some radios)

Supports 2 byte slave IDs

A notes column allows labeling the results

Allows saving and restoring settings in Configuration Files.

Write window allows writing single and multiple values

Save the Byte History Log to a text file

Log Data to a tabbed text file

and more...

Simply Modbus License Key Renewal

See the online manual

See the tutorial to Learn about Modbus and How it Works

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Modbus Basics Pdf

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Simply Modbus License Key Replacement

All unlicensed programs run indemo 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

SimplyModbusMaster8.1.2Install.zip
118 MB - click to download

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Compiler 7

SimplyModbusMaster7.1.2Install.zip
8.60 MB - click to download

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Compiler 5 - For windows XP

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

SimplyModbusMaster6.4.1.zip
1.70 MB - click to download

Simply modbus license key

Known Issue: Some users experience version 6.4.1 quitting by itself
or requiring an 'end task' to close properly.

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Purchase

Download the demo and try before you buy.

QuantitySimply Modbus
RTU/ASCII Master
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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