Modbus tester for serial communication diagnostics
Home
About
MODBUS
About
Enron
MODBUS
RTU Master
RTU Slave
manual2
manual7
manual8
TCP Client
Download
Purchase
Contact
Data Communication Test Software
Simply Modbus Slave
Modbus RTU Slave and Modbus ASCII Slave Software
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
-----------------------------------------------------------------------------------------------------------------------------
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.
-------------------------
Compiler 14
SimplyModbusSlave8.1.3Install.zip
118 MB - click to download
-------------------------
Compiler 7
SimplyModbusSlave7.1Install.zip
8.88 MB - click to download
-------------------------
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
Known Issue:
Some users experience version 2.1 quitting by itself
or requiring an 'end task' to close properly.
-------------------------------------------------------------------------------------
Purchase
Download the demo and try before you buy.
| Quantity | Simply Modbus RTU/ASCII 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.
Home • FAQ • Enron • Download • Purchase • Contact
Copyright © 2020 Simply Modbus. All rights reserved