node-red-contrib-mcprotocol

About

Overview

This is a Node-RED node module to directly interface with MITSUBISHI PLCs over Ethernet using MC Protocol.

Features

• Both TCP and UDP connections are possible
• frames 1E, 3E and 4E are possible
• works for PLC types
  • A (See Note 1)
  • QnA
  • Q
  • L
  • R
• ASCII and BINARY mode (See Note 2)

Recommendation

If your PLC suports UDP + 4E, this is by far most reliable.

NOTES

1. For A series PLC, only 1E frames are supported
2. ASCII mode is currently not supported for frames 3E and 4E

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Install

Prerequisites

• node.js (runtime for Node-RED)
• Node-RED
• [optional] git (Used for repository cloning/downloads)

Easy install

Use the Manage Palette > Install option from the menu inside node-red

NPM install

cd ~/.node-red
npm install node-red-contrib-mcprotocol

GIT install Direct

cd ~/.node-red
npm install Steve-Mcl/node-red-contrib-mcprotocol

GIT Install

Make a directory for the base files on the disk (somewhere secure) and open the created folder and open PowerShell (SHIFT + right_click) or "Git Bash Here" with right mouse inside the folder. Now enter the following:

cd c:/tempsourcefolder
git clone https://github.com/Steve-Mcl/node-red-contrib-mcprotocol.git

cd ~/.node-red
npm install c:/tempsourcefolder/node-red-contrib-mcprotocol

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Credits

• plcpeople for the original implementation of mcprotocol