Modbus Rtu Software For Mac


Thank you for downloading MODBUS RTU plugin from our software library. The version of MODBUS RTU plugin you are about to download is The download was scanned for viruses by our system. We also recommend you check the files before installation. The contents of the download are original and were not modified in any way. QSlave on the scheme is just the same part of the network, emulated by software. Naturally, you have to write the appropriate software, which was done by the author. QSlave - Slave Network Emulation QSlave is an open, cross-platform Modbus RTU network emulator. You can get it under license GPL v2.0 on Github by the above link. According to the ModBus RTU Dec 2006 spec, for bit-rates higher than 19200, the minimum inter-frame delay (t3.5) should be 1.75ms. I can't tell from your posted image what the inter-frame delay is in your capture. Modbus/TCP or Modbus/RTU These ActiveX /.NET software controls provide a fast, easy way to communicate with any Modbus slave devices connected to your PC. Get your Visual Basic, Visual C.NET, Excel, or other compatible applications talking Modbus protocol within minutes.

  1. Modbus Rtu Master

Data Communication Test Software

Simply Modbus Master

Modbus Rtu Master

Modbus RTU Master and Modbus ASCII Master Software

Free downloadruns indemo modewith full functionality.


Demo mode allows sending and receiving six request messages.

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


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...

See the online manual

See the tutorial to Learn about Modbus and How it Works


Free Download

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.


Compiler 14
118 MB - click to download


Compiler 7
8.60 MB - click to download


Compiler 5 - For windows XP

No Install Program. Just download, unzip and double click the exe file.
1.70 MB - click to download

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



Download the demo and try before you buy.

QuantitySimply Modbus
1 license
for 1 user or 1 PC
2 licenses
for 2 users or 2 PCs
site license
unlimited installations
at one location
within a single company

Prices in US dollars.

Combine purchase with other programs for savings.

Home • FAQ • Enron • Download • Purchase • Contact

Copyright © 2020 Simply Modbus. All rights reserved

(for Windows and Windows-CE)

* * * Developer Toolkits Now Available For PocketPC * * *

Full source code toolkits allow rapid development of modbus applications on WinCE.
Built using Microsoft Embedded Developer Platform Version 3.00,
toolkits are available for both modbus master and slave applications.
e-mail [email protected] details.

ModScan is a Windows application which operates as a modbus master.It allows you to access and change data points in a connected slave deviceusing either the RTU or ASCII Transmission mode. ModScan is ideally suitedfor quick and easy compliance testing of the modbus protocol and itsbuilt-in display of serial traffic allows effective troubleshootingof field connections. The CE version of ModScan operates on any PocketPC runningWindows CE 3.00, such as the ComPAQ iPAQ, ComPAQ Aero, HP Jornada, and Casio E-115.ModScan32 is an expanded Win32 version of the application for desktop PC's that allows youto open multiple documents to scan different sets of data points simultaneously.ModScan32 supports direct serial, modem and network connections which conformto the modbus/TCP communications standard as defined by Modicon. Access to modbusdata through third-party applications such as Visual Basic or ExCel is providedvia built-in Win32 OLE Automation and Database support. A simple-to-use scriptingfeature enables efficient production testing of modbus slave devices by performingrepetitive loops of query/response verification.

Additional Information/
PocketPC DemosModScanCE

ModSim32is a very simple but powerful application for simulating datafrom modbus slave devices. ModSim is an MDI application which allows youto define multiple blocks of data points which may then be accessed from aconnected modbus master. Each document opened within ModSim may beconfigured to represent data from the same or different slave nodethereby providing simulation for an entire group of devices. Useful forcomplience testing of new master designs or as a quick simulation ofa process. Additional functionality is available with ModSim32 whichsupports network connections as well as OLE Automation support whichplaces the simulator under the control of custom Visual Basic or ExCelspreadsheet applications. The CE version of ModSim provides many of the samefeatures as ModSim32 but is designed specifically for the PocketPC.