Using Omron PLC

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What to do with an PLC?

An PLC is by definition automated, so we will find two types of uses:

• The first consists to interacting with other processes, such as using a weather API to automate actions in the PLC, fetching information from an electric meter and transmitting it to the PLC...

• And the second consists to using Node-RED as an HMI, which allows for example to automate the process with HomeKit, Home Assistant...

If you also have a house entirely controlled by a PLC, the second use allows you to have a completely Home Automation. It's great, isn't it?

Lists of useful modules and their description:

• node-red-contrib-omron-fins: Ethernet protocol functions 'Read' and 'write' for communicating with OMRON PLCs from Node-RED
• node-red-contrib-buffer-parser: to convert values to and from buffer/array
• node-red-contrib-homekit-bridged: to simulate Apple HomeKit devices
• node-red-contrib-home-assistant-websocket: integration with Home Assistant through websocket and REST API