Modbus TCP tester

Modbus TCP tester runs on Mako Server, "a super compact and efficient Lua web framework", a web server portable for many OS.

Install

• Download Mako Server and unzip
• Download this repository
• On Windows, edit run mako modbus tcp tester Win.cmd, adapt paths and launch, accept firewall alert
• On Linux, edit run mako modbus tcp tester Linux.sh, adapt paths and launch
• Verify port in the console window (usually 9357 or 80)
• In your browser open http://localhost (if port is 80) or http://localhost:9357/

Usage

After "run mako" and open then main web page, click on Load at bottom to load an example or start to edit your configuration

Screenshot

Technologies

• Mako Server: web server and its Modbus TCP library
• Alpine.js
• w3.css
• Material Design icons
• json file format
• https should be implemented in Mako

Notes about JSON file data

Files are stored in saved_files at save, in json format: a javascript object.

During the process, a sub-set of this object is sended and returned from the web page and the server.lsp page that will execute the Modbus Connection.

Structure of the sub-set json data exchanged with the server.

// sample data: array of devices [{...}, {...}]
//   device:
      {ip: '192.168.1.100', port: '502', uid: '255', items: [{...}, {...}]}

        item: {addr: '111', size: '1', vtype:'word', value:'to write or result'}

An item is a map to the address memory.