DLT645 IEC104 to OPC UA Protocol Translator BL121DT
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway

DLT645 IEC104 to OPC UA Protocol Translator BL121DT

No.BL121DT
BL121DT protocol converter supports DLT645, IEC104 protocols converting to OPC UA protocols. This protocol gateway is widely used with power industry applications.
Communication
Ethernet, WiFi
Downlink Protocol
DL/T 645, IEC 104
Uplink Protocol
OPC UA
Serial Port
2CH or 6CH RS485/RS232
Baud Rate
2400bps-115200bps
Ethernet Port
1 WAN + 1 LAN
Description
The BL121DT is a protocol converter with Ethernet ports and RS-232/485 serial ports. Beilai BL120DT protocol converter supports DLT645, IEC104 protocols converting to OPC UA protocols. This protocol gateway is widely used with power industry applications.

Key Features

Intelligent Bidirectional Protocol Conversion

  • Downlink Support: DL/T645 (Chinese standard meter protocol), IEC104 (power telecontrol protocol)
  • Uplink Support: OPC UA (Industry 4.0 standard protocol)
  • Seamless integration between legacy devices and modern cloud platforms to eliminate data silos

High-Efficiency Data Acquisition

  • Simultaneous connection for 10 devices with 512 data points collection
  • Dual-channel RS485/RS232 serial ports supporting Modbus RTU/TCP transparent transmission


Industrial-Grade Reliability Design

  • Wide-Range Power Input: DC 9-36V with reverse-connection protection
  • Enhanced Protection: ESD protection: ±8kV (air discharge)/±6kV (contact discharge)
  • Hardware watchdog + software monitoring for 24/7 stable operation

Typical Applications

Smart Grid: Traditional substations collects relay protection device data through IEC104 to the power grid platform.
Smart Building: The power distribution room collects meter data through DL/T645 to the OPC UA platform to monitor power load in real time

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
USB Port QTY 1xMini USB
Protection Over current protection
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
BL121DT 1 1 2 × × ×
BL121DTW 1 1 2 × ×
BL121DTP 1 1 6 × × ×
BL121DTPW 1 1 6 × ×

Shipping Packaging
  • Industrial-grade Gateway x1
  • DIN35 mounting bracket x1
  • Connection Terminalsx1
  • WiFi antenna x1 (Optional)
  • Certificate of conformity x1
  • Warranty card x1
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway
  • DLT645 IEC104 to OPC UA Gateway

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