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PLC to MQTT Gateway BL102, Supports PLC Program Upload and Download

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Author : Jerry Chen
Update time : 2024-03-14 15:00:42


With the rapid development of Industry 4.0, it is deeply recognised that real-time, reliable and secure data transmission is crucial in industrial production and life. In this context, high-performance industrial automation data transmission solutions - protocol conversion gateway came into being, widely used in industrial automation systems, PLC remote monitoring and IoT applications environment.

BLIIoT always insists on the core of the user's needs, and constantly expands its applications in a variety of industrial fields. Recently, we have developed a new series of BLIIoT industrial protocol gateways, which not only have excellent stability and anti-interference ability, but also in-depth industry applications, aiming to bring users a new industrial automation data acquisition and conversion experience.

Product Description

PLC to MQTT Gateway BL102 is a specially developed for PLC networking and remote PLC programme uploading and downloading debugging.

The downlink protocol supports Mitsubishi, Siemens, Omron, Delta, Schneider and other PLC protocols.

The uplink protocol supports MQTT protocol.

PLC to MQTT gateway BL102 hardware interface includes 2 or 6 RS485/RS232 serial ports, 2 network ports and 1 WiFi wireless transmission interface.

PLC to MQTT gateway BL102 not only supports mainstream cloud platforms (AliCloud, Huawei Cloud, AWS Cloud), but also integrates data templates from IoT platforms such as ThingsBoard, Ignition, Zabbix, etc., which enables seamless communication between devices and platforms.

The PLC to MQTT gateway BL102 has an industrial-grade design to ensure reliability in harsh environments. Suitable for industrial automation systems, PLC remote monitoring and IoT applications, the PLC to MQTT Gateway BL102 connects the future of industry and provides users with a trusted solution for networking PLC devices.

By using its own patented rail-clip technology, the installation process is simplified and the utility of the gateway is ensured.

Product features


  • Supported protocols:

Downlink protocols: Modbus RTU, Modbus TCP, Mitsubishi, Siemens, Omron, Delta, Schneider and other mainstream PLC protocols.

Uplink protocol: MQTT protocol.

Supported cloud platforms: Alibaba Cloud, Huawei Cloud, AWS Cloud, ThingsBoard, Ignition, Zabbix, etc.

Hardware interface:

6*RS485/RS232 serial ports: The serial ports are independent of each other. Each serial port parameter can be set to collect different protocols. The serial port can also set the master-slave relationship independently. It can be configured as either a master station or a slave station.

2*network ports: used for data collection and forwarding. The LAN port has a routing function and provides a channel for other devices to connect to the external network.

1*4G or WiFi wireless transmission interface: Provides diverse communication options to adapt to different industrial environment needs.


  • Data security

Support data TSL/SSL, X.509 certificate, SNMPV1/V2, key encryption and other security gateway functions.


  • Remote Configuration Support:

Support remote configuration, providing users with convenient management and monitoring methods, no longer need engineers to save maintenance costs.


  • Product Size: L x W x H: 30 x 83 x 110mm
Standard version (2 serial port version) L x W x H: 30×83×110mm


PRO version (6 serial port version) L x W x H: 40×83×110mm



  • Safety and Stability:

Industrial-grade design: Durable shell material meets industrial environment requirements.Stability: Efficient communication protocol conversion ensures stable operation of the system.


  • Environmental adaptation:

Operating temperature range: -40~80℃, adapting to various industrial environments. Protection grade: IP30, ensuring the reliability of the equipment in harsh environments.

Model List

Application scenarios

PLC data acquisition and remote PLC programming data upload and download for industrial automation and industrial IoT scenarios.

More information about BLIIoT New PLC to MQTT Gateway BL102:

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