Modbus to MQTT Industrial IoT Gateway BL101
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway

Modbus to MQTT Industrial IoT Gateway BL101

No.BL101
Modbus to MQTT gateway BL101 is a key device for the Industrial Internet of Things (IIoT) that acts as a bridge between legacy industrial devices (typically using the Modbus protocol) and modern cloud-based IoT platforms.
Communication
Ethernet, 4G, WiFi
Downlink Protocol
Modbus RTU, Modbus TCP
Uplink Protocol
MQTT
Serial Port
2CH or 6CH RS485/RS232
Baud Rate
2400bps-115200bps
Ethernet Port
1 WAN + 1 LAN
Description
BL101 is an industrial IoT gateway that converts Modbus RTU, Modbus TCP to MQTT protocol. The gateway supports Ethernet, WiFi, or cellular networks(4G) transmission, ensuring that data is transmitted to AWS, ThingsBoard, IgnitionSCADA, and other cloud platforms stably and reliably.

Key Features

Hardware Configuration

  • Powerful Core: 300MHz ARM processor + Linux OS, 128MB RAM + 64MB Flash memory.
  • Dual-channel RS485/RS232 (baud rate 2400-115200bps, 7/8-bit data bits adjustable).
  • Supports cascaded switch device acquisition with high scalability.

Multi-Network Interconnection

  • Multi-network redundancy: Prioritizes wired Ethernet; automatically fails over to 4G when wired connection fails (Optional module, supports global mainstream bands).
  • WiFi expansion (Optional):Dual-band 2.4G/5G, 150Mbps speed, WPA2 encryption support.
  • Secure communication:Supports OpenVPN, SNMP V1/V2 protocols with encrypted data transmission.

Efficient Data Management

  • High-capacity acquisition:Simultaneously connects 10/50 devices with support for 512/4000 data points.
  • Transparent transmission:Bidirectional conversion between Modbus RTU/TCP; native data transparent transmission.
  • Customizable protocols:Tailorable login/heartbeat packets for private cloud platform integration.

Typical Applications

Smart factory: PLC/sensor data is uploaded to the cloud to monitor production line status in real time.
Energy management: Modbus data of electricity/water meters are aggregated to the energy management platform.
Remote operation and maintenance: 4G networking enables remote diagnosis and maintenance of equipment in remote areas.

Technical Specifications

Parameter Description
System Processor Clock speed 300Mhz
Storage 128MB
Flash Memory 64MB
Power Supply Input Voltage DC 9~36V 
Power Consumption Normal: 70mA@12V, Max: 168mA@12V
Wiring Anti-reverse connection protection
Ethernet Port Specification 2 x RJ45, 10/100Mbps, adaptive MDI/MDIX
Protection ESD: ±6kV(Contact), ±8kV(Air)
EFT: 1kV, 5kHz
Serial Port QTY 2CH or 6CH RS485/RS232
Baud Rate 2400bps-115200bps
Data Bit 7,8
Parity Bit None, Even, Odd
Stop Bit 1, 2
Protection ESD: ±6kV(Contact), ±8kV(Air)
SURGE  ±1kV, 8/20us
EFT: 1kV, 5kHz
SIM Card Slot QTY 1
Specification Drawer type, support 1.8V/3V SIM/UIM card(NANO)
Protection Built-in 15KV ESD protection
USB Port QTY 1xMini USB
Protection Over current protection
4G
(Optional)
Antenna QTY 1
Antenna Type SMA Hole 
GPS
(Optional)
Antenna QTY 1
Antenna Type SMA Hole
Tracking Sensitivity > -148 dBm
Flat Position Precision 2.5m
Protocol NMEA-0183 V2.3
WiFi
(Optional)
QTY 1
Type SMA
Protocol 802.11a/b/g/n (mixed)
Mode Client Mode
Channel 2.4G Channel 1 - 13,5G Channel 36 - 165
Security Security
Encrypted AES, TKIP, TKIPAES
Speed 150Mbps (Max)
Distance Unobstructed/open outdoor coverage up to 20 meters
SSID broadcast switch Support
Indicator PWR Always on when device powered on 
RUN Flickering when system running
Off when system shutdown
LINK Flickering when Ethernet communication; Always on when 4G or WiFi communication; OFF when Ethernet, 4G, WiFi are all disconnected.
Software Internet Protocol IPV4, TCP/UDP, DHCP, DNS, etc
IP Retrieving Static IP/DHCP
Transparent Transmission Support
DNS Support Domain Name resolution
Configuration PC software configuration, support WIN 7, WIN 8, WIN 10 and WIN11
Network Cache Transmitting: 8Kbyte; Receiving: 8Kbyte
Safety Regulations EMC CE, FCC
EMS IEC 61000-4-2 (ESD) Level 3
IEC 61000-4-4 (EFT) Level 3
IEC 61000-4-5 (Surge)Level 3
Vibration IEC60068-2-6
Environment Working -40~85℃, 5~95% RH
Storage -40~85℃,5~95% RH
Others Housing Material Plastic
Size 40×83×110mm/30×83×110mm (LxWxH)
Protection  IP30
Net Weight 171g/133g
Mounting DIN Rail Mounting/Wall-mounting

Model Selection

Model WAN LAN COM(RS485)
(Optional RS232)
WiFi 4G GPS
BL101 1 1 2 × × ×
BL101L 1 1 2 × ×
BL101LG 1 1 2 ×
BL101W 1 1 2 × ×
BL101P 1 1 6 × × ×
BL101PL 1 1 6 × ×
BL101PLG 1 1 6 ×
BL101PW 1 1 6 × ×

Shipping Packaging
  • Industrial-grade Gateway x1
  • DIN35 mounting bracket x1
  • Connection Terminalsx1
  • WiFi antenna x1 (Optional)
  • Cellular antenna x1(Optional)
  • GPS antenna x1  (Optional)
  • Certificate of conformity x1
  • Warranty card x1
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway
  • Modbus to MQTT Gateway

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