LM Gateway201-IoT


IoT Gateway


LM Gateway201-IoT data acquisition gateway provides two RS-485 serial ports and one 10/100 Mbps Ethernet port. The data acquisition drivers such as Modbus, BACnet, OPCUA, DLT645, Siemens PLC are embedded in the gateway, providing private protocol driver integration. The gateway can be used as Modbus RTU, Modbus TCP server to provide external data. The gateway and cloud platform use the instant messaging protocol MQTT to transmit data. The gateway can be used as an MQTT client to connect to Alink (Alibaba Cloud) Tlink. Write operation


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CPUARM926EJ,300MHz
RAM64MByte High performance memory
Nand Flash128MByte SLC Flash
Serial portRS485X2
Network port1 100M/10M Ethernet interface
PowerDC9V~36V
Total Weight170g
Enclosure ratingIP51
Mechanical Dimensions130mm×109mm×35mm(L×W×H)
Mechanical installationDIN rail card slot fixing
Power consumptionThe maximum power consumption of the motherboard is ≤3W
Operating temperature-40~80℃
Working relative humidity20 to 90% non-condensing
InstrumentationData acquisition driverSerial portNetwork port
Modbus protocolModbus RTUModbus TCP, Modbus RTU_over_TCP
DLT645 protocolDLT645-1997, DLT645-2007/
CJ188 protocolCJ188/
MbusMBus_EnergyMeter, MBus_EN1434/
PLCMitsubishi AgreementMitsubishi Fx3U/
Mitsubishi Fx485/
Mitsubishi_QBinary/
Siemens protocolSiemens S7-200 PPISiemens S7-200 Network
/Siemens S7-300 Network
/Siemens S7-400 Network
/Siemens S7-1200 Network
/Siemens S7-1500 Network
AB/AB NET
OMRON ProtocolOMRON_HOSTLINKOMRON_FINS
Building communicationBACnet protocolBACnet MS/TPBACnet IP
Industrial control and automation interface standardsOPC protocol/OPC UA, OPC DA, OPC XML DA
Substation communication standardIEC protocol/IEC104
Non-standard protocolInstrumentationYiling 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 interfaceInternet collection/mqtt client subscription
/Gold map weather forecast
/Zhejiang Dahua HTTP
/HTTP collection
/Air Quality
  • Gateway acts as Modbus RTU, Modbus TCP server provides external data

    Support 0x, 1x, 3x, 4x, 4 functional areas

    Supports int16, int32, float32 and various data types


  • The gateway provides an http server, which supports two common methods of GET and POST. Users can retrieve the real-time data and stored historical data of the gateway through the http server interface.


  • The gateway can serve as an MQTT client, connecting Alink (Alibaba Cloud), Baidu Cloud, Tencent Cloud, Tlink and other private clouds.

    Push the data points of the gateway to the cloud through a subscription and publishing mechanism. The gateway reads and writes the front-end equipment.Romi Measurement & Control launched the IoT data center, which is convenient for users to verify IoT applications such as gateways, cloud services, and WeChat public accounts.



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