MQTT Communication

MQTT is a lightweight and simple communication protocol optimized for use with IoT devices and used mainly for cloud connectivity. It includes security features such as retransmission if a message is not received, TLS encryption, and client authentication. Data transmission and reception are only performed as needed, helping to reduce the load on communication circuits.

The MQTT protocol adopts the Publish-Subscribe model. When an FX5-ENET device submits a Publish request to an MQTT broker, the MQTT broker transmits the information to all Subscribe request reception devices.

Uploads data from manufacturing sites to the cloud

Transmits data received from the Publisher to the Subscribers

Determines which data is necessary for reception

STEP 1 The Subscribers specify the data (topics) to be received by the broker and request delivery of the necessary data.

STEP 2 The broker receives data transmitted from the Publisher.

STEP 3 The broker delivers the specified data to the Subscribers.

Support for major cloud networks

Review the latest trends and applications of each cloud service to determine which cloud network is right for you.

MQTT Communication

Modelo		MQTT function	Compatible CPU module
			FX5U	FX5UC	FX5UJ	FX5S
	FX5-ENET Módulo de ethernet	Connecting to the MQTT server (broker) Sending messages to the MQTT server as a Publisher Receiving messages from the MQTT server as a Subscriber	○ Up to 1 module	*1 ○ Up to 1 module	○	×

• *1When connecting to FX5UC, FX5-CNV-IFC or FX5-C1PS-5V is required.