Skip to product information
1 of 15


BL101 Modbus MQTT Gateway

Regular price $217.99 USD
Regular price Sale price $217.99 USD
Sale Sold out
Tax included.

BL101 Modbus to OPC MQTT Gateway

Modbus Gateway BL101 is an industrial IoT gateway that converts Modbus RTU and Modbus TCP into Modbus TCP, OPC UA, MQTT, Huawei Cloud IoT, AWS Cloud, ThingsBoard Cloud and other protocols. 


Modbus Gateway BL101 is an industrial IoT gateway that converts Modbus RTU and Modbus TCP into Modbus TCP, OPC UA, MQTT, Huawei Cloud IoT, AWS Cloud and other protocols. 
Modbus Gateway BL101 downstream supports: Modbus RTU Master, Modbus TCP Master, upstream supports: Modbus TCP, MQTT, Sparkplug B, OPC UA, Huawei Cloud IoT, AWS Cloud, Inductive Automation Ignition SCADA,  ThingsBoard Cloud, Alibaba Cloud, and other protocols. 
Modbus Gateway BL101 adopts an embedded Linux system, supports TSL, SSL encryption, provides 1 RS232/RS485 optional serial input, 1 power output, 2 Ethernet ports and 2 USB ports, and supports SIM card and SD card. The built-in 4G network or Ethernet access to the Internet has the characteristics of fast speed and low latency. It supports OpenVPN for secure data transmission. 
The Modbus Gateway BL101 supports routing function and cascaded switch data collection, which is convenient to collect more industrial equipment data. The software has complete software functions and covers most of the conventional application scenarios. Users only need to go through simple settings. 



  • Downlink support: Modbus RTU Master, Modbus TCP Master
    Uplink support: Modbus TCP, MQTT, OPC UA, Huawei Cloud IoT, Alibaba Cloud IoT, AWS IoT, Golden Pigeon Cloud and other protocols.
  • Wide working voltage design, support 9-36V DC power supply, the interface is terminal mode, with two power input interfaces, you can choose one of them at will, and both are equipped with anti-reverse protection design. 
  •  Support 1 power output, the output voltage is equal to the input voltage.
  • Support 1 RS232/RS485 optional input. 
  • The serial port baud rate supports 2400bps-115200bps; the stop bit supports 1, 2 bits, the data bit supports 7, 8 bits, and the None, Odd, Even check modes are supported.
  • Support 2 RJ45 Ethernet ports, 1LAN +1 WAN respectively, WAN port and LAN port can directly collect equipment or equipment on cascade switch, with link and data indicator, network port built-in isolation transformer, up to 2KV electromagnetic isolation.
  • Supports POE power receiving (optional function), saving wiring costs.
  • Supports routing function.
  • Supports 4G function, APN parameters can be set.
  • Supports Modbus RTU to Modbus TCP, transparent transmission protocol.
  • Supports the RESET button to restore the factory function (long press in the power-on state until the indicator light goes out) to prevent parameter setting errors.
  • Supports hardware watchdog, with high reliability.
  • Metal shell construction provides protection with IP30 grade metal shell and system is safely isolated, especially suitable for industrial field applications.
  • The device is small, 30mm (about 1.18 in) *83mm (about 3.27 in) *109.5mm (about 4.31 in), and supports wall-mounted installation and industrial rail installation.


Power Supply

Input Voltage 9-36VDC
Power Consumption Normal 85mA @12V, Maximum 117mA @12V


Network Port

 Ethernet Port Specifications 2xRJ45, 10/100MBPS, Adaptive: MDI/MDIX


Serial Port

Number of Serial Ports 1 x RS232/RS485 (optional)
Serial Port Baud Rate 2400bps-115200bps
Data Bit 7,8
Check Digit None, Even, Odd
Stop Bit 1,2


Power Output

 Output Voltage 9-36 VDC (output voltage is equal to the input voltage)


Sim Card

 Format Drawer Interface, Supports 1.8V/3V SIM/UIM Card (NANO)


USB Port

Number 1 Download Program + 1 Program Debugging
Specification micro USB OTG



Number of Antenna Ports 1
Antenna Interface Type
SMA Hole
L-A Version


FDD-LTE: B2,B4.B12



Software Parameters

Network Protocol IPV4, TCP/UDP, DHCP, DNS
IPO BTaining Method
Static IP/DHCP
Transparent Transmission
User Configuration
PC Software Configuration, Supports Win XP, 7, 8 and 10
Network Cache Send Out: 8kbyte; receive; 8kbyte
Registration Support Custom Registration
Heartbeat Support Custom Heartbeat



Working Temperature/Humidity -40-80ºC | 5-95%RH
Storage Temperature/Humidity -40-85ºC | 5-95%RH



Shell Metal Material
L30mm X W83mm X H109.5mm 
Protection Level IP30
Net Weight 291.2g
Installation Method Wall-Mounted or Rail-Mounted





Get A Custom Quote