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Samkoon HMI & Mitsubishi FX3U “Communication” Tutorial

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PLC FX3U is the third generation product of Mitsubishi brand PLC FX programmable controller. With many advantages and outstanding features, the FX3U PLC programmer has brought many successes in the industry. Mitsubishi PLC programmer is now present in the international market and is favored by customers all over the world.

Today will guide you to use Samkoon HMI to connect to PLC to control and monitor it, I use FX3U’s CPU port to connect.

Samkoon HMI & Mitsubishi FX3U “Wiring Diagram”

Wiring diagram from RS422 Port of HMI Samkoon to CPU port of Mitsubishi FX3U PLC

Mitsubishi FX3U “CPU Communication Setting”

I recommend that you leave the default parameters of the CPU Port of Mitsubishi FX3U

HMI Samkoon “RS422 Communication Configuration”

We need to set the communication parameters of the Samkoon HMI according to the parameters installed for the “Mitsubishi FX3U” PLC.

I/O Mapping

Video Tutorial


+ Download Samkoon HMI Programming Software
+ Download PLC Mitsubishi Programming Software

If in the process of using the Samkoon HMI to connect to the Mitsubishi FX3U PLC, you have trouble or need any support, please comment below the article, will reply to you as soon as I read the comments.

Best Regards!

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