I will maintain this page and link to all Modbus Testers I come across.
http://www.chipkin.com/a/products/modbus/ No user feedback yet, untested by us.
http://www.heapg.com/Pages/TechSupport/Downloads.html No user feedback yet, untested by us.
http://modbus.pl/MTester.htm No user feedback yet, untested by us.
Chipkin Automation Systems is offering a Modbus Scanner (Master). If anyone uses this, please provide feedback.
http://www.chipkin.com/a/products/modbus/
FreeMODBUS is a free implementation of the popular Modbus protocol specially targeted for embedded systems. This site is very interesting because the source code supports multiple chip platforms, for example ARM, AVR, Coldfire, MSP430, Z8Encore, Win32 and Linux. It also supports the following Modbus function codes, which covers 99.9% of applications. This seems to be a very good job by Christian Walter. Congratulations, and keep it up Christian.
These tools are not free. They may have a limited time trial period. I am listing them here for now in order to get some comment. I will be removing the listing later unless the vendor decides to create a free version, even if it is severely crippled.
Modbus Test tools http://modbustools.com/index.asp
BACnet Explorer link
If you are a developer, or user of OPC servers, these test clients may help you. Please provide feedback regarding your experience using these.
http://www.advosol.us/t-smartTestClients.aspx
The Automation Guy.
Iconics seems to offer a free Modbus OPC server, as well as other tools. If anyone has used any of these tools, please comment.
http://www.iconics.com/support/free_tools.asp
The Automation Guy.
Written in Javascript, this site promises elegant, web 2.0, widgets for HMIs (Human Machine Interfaces). When you click through on the link below, be sure to take a look at the top left corner of the screen to see the thermometer. Roll your cursor over the thermometer to see a settings block pop up. To be able to use this toolbox one would have to be a Javascript programmer, but perhaps a community will spring up and provide some level of support to the rest of us….
This Modbus Tester runs on Windows. The limitations seem to be that it does not support Modbus TCP yet, nor Modbus ASCII. However, since most Modbus applications are still serial RTU, this should not be a problem. If you explore this website further you will find many other interesting Modbus and Telemechanique tools, most of them aimed at programmers.
For general information about this website, click
Should you wish to contribute an Automation Tool type product, with genuine SCADA, HMI, Modbus, BACnet or other potentioal, or if you know of any other product that deserves listing, please post a comment here. I will research and make a permanent post.
The Automation Guy.
Here is a link to OPC tools on sourceforge.net. I have not evaluated or reviewed any of these. In the meanwhile, I would appreciate any feedback in the meantime pertaining to any of the listed systems.
OPC resources on Sourceforge (link)
The Automation Guy.