EdgeIO Controllers Selection Guide

EdgeIO Controllers Selection Guide

EdgeIO Controller Series Selection Guide

This selection guide covers all EdgeIO Controllers — compact, expandable industrial controllers that integrate data acquisition, protocol conversion, logic control, and remote maintenance into one device. Choose the right model based on your requirements.


Quick Selection — Which EdgeIO Controller Do You Need?

All EdgeIO controllers share the same hardware platform: 1-3 I/O expansion slots, dual Ethernet with integrated switch, isolated RS485, web configuration, and wide‑temperature operation (-40°C to +85°C). The only difference is the uplink protocol.

Model Uplink Protocol Best For Key Feature
BL190 Modbus TCP PLC expansion, SCADA integration Native Modbus TCP, 15 simultaneous clients
BL191 OPC UA Industry 4.0, IT/OT integration, secure communication X.509 certificates, AES-256, IEC62443 compliant
BL192 MQTT Cloud IoT, remote monitoring, energy systems Direct to AWS/ThingsBoard
BL192Pro MQTT + Modbus TCP + OPC UA Multi-protocol edge IoT gateway Three protocols in one, most flexible
BL193 SNMP Data center, telecom, network room monitoring SNMP v1/v2c/v3, standard MIB, IT/OT bridge
BL194 EtherNet/IP Rockwell Automation systems, discrete manufacturing Native EtherNet/IP, direct to ControlLogix/CompactLogix
BA190 BACnet/IP Building automation, HVAC, lighting, access control BACnet/IP standard, building management systems
BA190Pro BACnet/IP + MQTT + Modbus TCP + OPC UA Smart building HVAC, multi-protocol building controller Four protocols, most versatile for buildings

Detailed Model Descriptions

BL190 — Modbus EdgeIO Controller

Protocol: Modbus TCP 

Native Modbus TCP controller that works as remote I/O for Modbus TCP masters (Siemens, Schneider, Delta, etc.). Supports 15 simultaneous Modbus TCP clients.

👉 View BL190 Product Page →

BL191 — OPC UA EdgeIO Controller

Protocol: OPC UA 

OPC UA server that converts Modbus RTU/TCP data to OPC UA automatically. Supports X.509 certificates, AES-256 encryption, and role‑based policies — compliant with IEC62443 cybersecurity standard. Bridges OT sensors to IT systems (SCADA, MES, ERP, cloud).

👉 View BL191 Product Page →

BL192 — MQTT EdgeIO Controller

Protocol: MQTT 

Native MQTT controller with direct cloud connectivity — Alibaba Cloud, Huawei Cloud, AWS IoT, and ThingsBoard. Collects Modbus RTU data and publishes to MQTT brokers. 

👉 View BL192 Product Page →

BL192Pro — IIoT EdgeIO Controller

Protocol: MQTT + Modbus TCP + OPC UA 

Most flexible EdgeIO controller. Supports all three uplink protocols — MQTT for cloud, OPC UA for IT/OT integration, and Modbus TCP for traditional PLC/SCADA systems. One device covers all bases. Best for complex projects with mixed requirements.

👉 View BL192Pro Product Page →

BL193 — SNMP EdgeIO Controller

Protocol: SNMP 

Converts industrial sensor/actuator signals into standard SNMP MIB objects. Supports SNMP v1/v2c/v3 with encrypted communication. Directly integrates with enterprise IT network management systems (NMS). Ideal for data center monitoring, base stations, and smart campuses.

👉 View BL193 Product Page →

BL194 — EtherNet/IP I/O Module

Protocol: EtherNet/IP 

Native EtherNet/IP adapter (slave) for Rockwell ControlLogix, CompactLogix, and Micro800 PLCs. 

👉 View BL194 Product Page →

BA190 — BACnet/IP EdgeIO Controller

Protocol: BACnet/IP |

BACnet/IP controller for building management systems (BMS). Connects HVAC, lighting, security, access control, elevators, and water systems. Enables centralized monitoring and control of building devices through standard BACnet/IP protocol.

👉 View BA190 Product Page →

BA190Pro — Building HVAC EdgeIO Controller

Protocol: BACnet/IP + MQTT + Modbus TCP + OPC UA 

Most versatile building automation controller. Supports BACnet/IP for BMS integration, MQTT for cloud, OPC UA for IT systems, and Modbus TCP for legacy equipment. Four protocols in one device. Ideal for smart buildings requiring both local BMS and cloud connectivity.

👉 View BA190Pro Product Page →


Y Series I/O Boards — Expandable Modules for All EdgeIO Controllers

All EdgeIO controllers (BL190, BL191, BL192, BL192Pro, BL193, BL194, BA190, BA190Pro) share the same Y Series I/O expansion boards. Choose 1 to 3 boards per controller based on your I/O requirements.

Model Type Channels Signal / Function
Y01 Digital Mixed 8 4DI + 4DO (NPN)
Y02 Digital Mixed 8 4DI + 4DO (PNP)
Y11 Digital Input 8 NPN (low‑level triggering)
Y12 Digital Input 8 PNP (high‑level triggering)
Y13 Digital Input 8 Dry contact
Y21 Digital Output 8 PNP
Y22 Digital Output 8 NPN
Y24 Relay Output 4 Relay, 2A/250VAC
Y31 Analog Input 4 0-20mA / 4-20mA
Y33 Analog Input 4 0-5V / 0-10V single‑ended
Y34 Analog Input 4 0-5V / 0-10V differential
Y36 Analog Input 4 ±5V / ±10V differential
Y41 Analog Output 4 0-20mA / 4-20mA
Y43 Analog Output 4 0-5V / 0-10V
Y46 Analog Output 4 ±5V / ±10V
Y51 RTD 2 3-wire PT100
Y52 RTD 2 3-wire PT1000
Y53 RTD 2 4-wire PT100
Y54 RTD 2 4-wire PT1000
Y58 Thermocouple 4 TC (B/E/J/K/N/R/S/T)
Y61 Serial Port 4 4x RS485/RS232 optional
Y95 Pulse (NPN) 8 4 pulse output + 4 pulse counting (NPN)
Y96 Pulse (PNP) 8 4 pulse output + 4 pulse counting (PNP)

Common Technical Specifications — All EdgeIO Controllers

Power Supply 24VDC,
Power Consumption 55mA@24 VDC
Reverse Polarity Protection Yes
Ethernet Ports 2 x RJ45, 10/100M, integrated switch, cascading support
RS485 Ports 1 isolated (optional Y61 adds 4 more)
I/O Expansion Slots 1 to 3 slots, supports Y Series boards
Logic Control No programming required. Set up logic rules (IF-THEN, AND, OR) directly in your web browser
Configuration Built‑in web server, no software installation required
Remote Maintenance BLRAT (Beilai Remote Access Tool) for remote firmware and config
Operating Temperature -40°C to +85°C
Storage Temperature -40°C to +85°C
Relative Humidity 5% – 95% non‑condensing
Protection Rating IP30
Dimensions (1 slot) 30 x 83 x 110 mm (L x W x H)
Dimensions (3 slots) 40 x 83 x 110 mm (L x W x H)
Weight (1 slot) 133 g
Weight (3 slots) 171 g
Mounting Wall‑mount or DIN‑35 rail
EMC Certification CE, FCC, Class A
EMS ESD Level 3, EFT Level 3, Surge Level 3

How to Use This Selection Guide

  1. Step 1: Identify your uplink protocol requirements — what system will read data from the controller? (Modbus TCP, OPC UA, MQTT, SNMP, EtherNet/IP, or BACnet/IP)
  2. Step 2: Select the controller model that matches your protocol.
  3. Step 3: Choose 1 to 3 Y Series I/O boards based on your I/O needs (digital, analog, RTD, TC, pulse, serial).
  4. Step 4: Mount the controller (wall or DIN‑rail), connect power (24 VDC), and configure via web browser.

Need Help Choosing?

For technical support, custom configuration assistance, or volume pricing, please contact Shenzhen Beilai Technology.

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