# Connect to coolmay PLC

**URL:** <https://discourse.nodered.org/t/connect-to-coolmay-plc/79671>\
**Category:** Industrial\
**Created:** [9 July 2023 14:54 UTC](https://discourse.nodered.org/t/connect-to-coolmay-plc/79671 "2023-07-09T14:54:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![wcordova](https://avatars.discourse-cdn.com/v4/letter/w/bb73d2/32.png) [@wcordova](https://discourse.nodered.org/u/wcordova)\
**Post date:** [9 July 2023 14:54 UTC](https://discourse.nodered.org/t/connect-to-coolmay-plc/79671/1 "2023-07-09T14:54:11Z")

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Hi All,  
I have a raspberry pi integrated with Logo Siemens through node-red-contrib-s7 (I understand that library is only for logo siemens) , and the raspberry is connected to ubidots to send data to the cloud , it works well! .  
My question is :  
I would like to buy another chinese PLC (Brand name is Coolmay) and I want to know if there is a node red library for this brand. PLC (integrated with HMI ) is EX3G-70KHA/KHB.

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [9 July 2023 16:24 UTC](https://discourse.nodered.org/t/connect-to-coolmay-plc/79671/2 "2023-07-09T16:24:58Z")

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[This article](https://m.alibaba.com/product/60806941623/Coolmay-integrated-PLC-and-HMI-with.html?spm=a2706.7835515.0.0.22a43f3ekMPXpo) states

> Compatible with Mitsubishi GX Developer8.86 and WORKS 2

While that could mean several things, it suggests it supports MC protocol. There is a contrib node for mitsubishi PLC - [node-red-contrib-mcprotocol (node) - Node-RED](https://flows.nodered.org/node/node-red-contrib-mcprotocol)

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [9 July 2023 16:44 UTC](https://discourse.nodered.org/t/connect-to-coolmay-plc/79671/3 "2023-07-09T16:44:11Z")

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And [this article](https://en.coolmay.com/wap/MobilePicDetail.aspx?ColumnId=189&ArticleId=2433&Language=36&Terminal=42) states it supports modbus - which can be used with this node: [node-red-contrib-modbus (node) - Node-RED](https://flows.nodered.org/node/node-red-contrib-modbus)

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [7 September 2023 16:44 UTC](https://discourse.nodered.org/t/connect-to-coolmay-plc/79671/4 "2023-09-07T16:44:16Z")

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