ZHL4921 is an industrial MQTT gateway designed to meet the needs of industrial customers and adopted industrial-grade standards. This product supports MQTT communication based on the Modbus protocol, which can help users quickly access IoT cloud platforms (such as Baidu Cloud, Huawei Cloud, Alibaba Cloud, etc.) to achieve safe and reliable data transmission. It is widely used in power, meteorology, environmental protection, industry Automation, transportation, finance, forestry, petroleum, construction, medical care, agriculture, and other IoT applications.
1. Characteristics of ZHL4921 industrial MQTT gateway
(1) Industrial-grade design, high-performance processor
It adopts high-performance industrial-grade Cortex-A7, 1.3GHz processor, adopts industrial-grade design standards, and has anti-interference capability. It adopts dual watchdogs of software and hardware to ensure that the equipment runs stably at all times. The equipment can operate normally at -40~85℃.
(2) Rich interfaces and easy deployment
Provides 1LAN/2DI/1DO/1AI/1RS485/232 multiple interfaces, supports WI-FI and 4G networks, can meet different application scenarios and provide different access solutions.
(3) Support multiple network protocols
Supports MODBUS RTU and MODBUSTCP protocol adaptation, and supports TCP, UDP, MQTT and other protocols.
(4)Linux operating system
Developed based on Linux 3.18 operating system, convenient for users’ secondary development and use
2. Features of ZHL4921 industrial MQTT gateway
●Industrial grade Cortex-A7, 1.3GHz processor
●256MB RAM, 256MB Flash
●1 channel 100M industrial Ethernet interface
●Linux 3.18 stable operating system
●High-speed 4G wireless data network transmission and routing functions
●1 channel RS485/RS232 serial interface
●Interface: AI*1/ DI*2/ DO*1
●Support NTP function to realize automatic network time adjustment
●Support 10*10KB network/serial port data cache
●Support WIFI hotspot/GPS positioning
●Supports multiple configuration and debugging methods
●Support APN settings
●Provide data edge computing capabilities
●Dynamic domain name resolution
●Support DHCP
3. ZHL4921 industrial MQTT gateway application
ZHL4921 industrial MQTT gateway is widely used in remote maintenance of PLC, frequency converters, robots and other equipment in industrial sites; remote maintenance and management of engineering machinery; remote maintenance and management of workshop equipment and process systems; remote monitoring and control of secondary water supply pumps in residential areas; oil and gas fields and Monitoring and control of oil wells and other sites; remote monitoring of steam pipelines and heating pipelines; applications in smart buildings, smart factories and other Industry 4.0 fields.