LMGateway203-MQTT
MQTT Gateway
LM Gateway203-MQTT data acquisition gateway, based on a solid hardware platform design, a complete software kernel. Provides 2 RS-485 serial ports, 1 10/100 Mbps Ethernet port, and supports 4G modules. The gateway is embedded with Modbus, BACnet, DLT645 and other data acquisition drivers. It provides proprietary protocol driver integration. The gateway and cloud platform use the instant messaging protocol MQTT to transmit data. The gateway data points are released through subscription. The mechanism is pushed to the cloud, and the cloud can read and write to the front-end device through the gateway.
Buy online
| CPU | ARM926EJ, clocked at 300MHz |
| Memory | 64MByte High Performance Memory |
| Nand Flash | 128MByte SLC Flash |
| Serial Port | Two fully isolated RS485/RS232 interface multiplexing |
| Network Port | One 100M/10M Ethernet Interface |
| 4G Module | Built-in 4G Full Netcom Module |
| Power | DC9V~36V, support anti-reverse, anti-thunder, over-current protection, etc. |
| Whole weight | 370g |
| Shell protection level | IP51 |
| Installation Dimensions | 135mm×111mm×35mm (L×W×H) with mounting ears |
| Mechanical Installation | DIN Rail Card Slots |
| Power Consumption | Maximum power consumption of the motherboard ≤3W |
| Working temperature | -40~85°C |
| Work Relative Humidity | 20~90% No Condensation |
| Instrumentation | Data acquisition driver | Serial port | Network port |
| Modbus protocol | Modbus RTU | Modbus TCP, Modbus RTU_over_TCP | |
| DLT645 protocol | DLT645-1997, DLT645-2007 | / | |
| CJ188 protocol | CJ188 | / | |
| Mbus | MBus_EnergyMeter, MBus_EN1434 | / | |
| PLC | Mitsubishi Agreement | Mitsubishi Fx3U | / |
| Mitsubishi Fx485 | / | ||
| Mitsubishi_QBinary | / | ||
| Siemens protocol | Siemens S7-200 PPI | Siemens S7-200 Network | |
| / | Siemens S7-300 Network | ||
| / | Siemens S7-400 Network | ||
| / | Siemens S7-1200 Network | ||
| / | Siemens S7-1500 Network | ||
| AB | / | AB NET | |
| OMRON Protocol | OMRON_HOSTLINK | OMRON_FINS | |
| Building communication | BACnet protocol | BACnet MS/TP | BACnet IP |
| Industrial control and automation interface standards | OPC protocol | / | OPC UA, OPC DA, OPC XML DA |
| Substation communication standard | IEC protocol | / | IEC104 |
| Non-standard protocol | Instrumentation | Yiling temperature controller | / |
| dlt645 JX Digital | / | ||
| dlt645-2007 extended protocol | / | ||
| Jiangsu Runyi Water Meter | / | ||
| HL-MODBUS protocol | / | ||
| CJ/T133-2012 IC card water meter | / | ||
| DLT645-Fee Control | / | ||
| CJ/T133-2012 MBus IC card water meter | / | ||
| ModbusRTU_TancyA1 | / | ||
| Allen_Bradley_DF1 | / | ||
| modbus Shendong 43 | / | ||
| CJ188贵翔 | / | ||
| Beijing Mingcheng Zhonghui Sunshade Curtain | / | ||
| SGA400 | / | ||
| DEET-BUS | / | ||
| Internet interface | Internet collection | / | mqtt client subscription |
| / | Gold map weather forecast | ||
| / | Zhejiang Dahua HTTP | ||
| / | HTTP collection | ||
| / | Air Quality |
The gateway can be used as an MQTT client to connect to the private cloud Alibaba Cloud, Baidu Cloud, Tencent Cloud, etc.,
and push the data points of the gateway to the cloud through the mechanism of subscription publishing, and the cloud can
read and write the front-end device through the gateway.
The gateway provides an http server, which supports two commonly used methods: GET and POST.
LM Gateway203-MQTT Data Sheet