In many industrial automation projects, connecting field devices to a SCADA system often requires multiple components: a PLC, remote I/O modules, protocol gateways, and additional wiring. This increases project costs, engineering complexity, and maintenance efforts.
The BLIIOT BL190 Modbus TCP Edge I/O Controller is designed to solve this challenge.
By combining remote I/O, protocol conversion, logic control, and edge connectivity into a single industrial-grade device, BL190 provides a cost-effective and scalable solution for digital transformation and industrial automation.
BL190 integrates several key functions traditionally handled by separate devices:
Modbus TCP Remote I/O
Modbus RTU Master & Slave Communication
Edge Logic Control
Protocol Conversion
Remote Configuration & Maintenance
This allows users to deploy automation systems faster while significantly reducing hardware costs.
BL190 features dual 10/100M Ethernet ports and natively supports Modbus TCP communication, making integration with SCADA platforms, PLCs, HMIs, and industrial software straightforward. The dual Ethernet design also supports device cascading, simplifying network deployment in distributed systems.
Whether upgrading existing equipment or building a new automation system, BL190 allows field data to be quickly connected to supervisory systems for centralized monitoring and management.
In addition to Ethernet connectivity, BL190 includes an isolated RS485 interface supporting Modbus RTU Master mode.
Users can directly collect data from:
Power meters
Flow meters
Pressure transmitters
Temperature controllers
Environmental monitoring devices
Other Modbus RTU instruments
The collected data can then be converted and exposed through Modbus TCP for seamless integration into SCADA systems.
Many field applications only require simple control logic such as:
Tank level control
Pump start/stop automation
Alarm triggering
Safety interlocks
Production counting
Equipment status monitoring
BL190 includes a built-in web server and logic control functions, allowing users to configure control strategies without deploying an additional PLC. This reduces both hardware investment and programming complexity.
BL190 supports 1 to 3 expansion slots and can be combined with various I/O modules, including:
Digital Inputs (NPN, PNP, Dry Contact)
Digital Outputs
Relay Outputs
4-20mA
0-10V
±10V
PT100 / PT1000 RTD
Thermocouple Inputs
Pulse Counting
Pulse Output
Multi-Port RS485/RS232
CAN Communication
IEPE Vibration Measurement
This flexibility allows BL190 to adapt to manufacturing lines, pump stations, utility systems, smart buildings, agriculture, environmental monitoring, energy storage systems, and more.
BL190 is built for demanding industrial environments.
Key specifications include:
Operating Temperature: -40°C to +85°C
Independent Hardware Watchdog
Electrical Isolation Design
CE and FCC Certification
EMC/EMI Compliance
Surge, ESD, EFT Protection
DIN-Rail Installation
IP30 Industrial Protection Rating
These features ensure long-term stable operation in harsh industrial environments.
Collect machine status, alarms, and production data while connecting directly to SCADA or MES systems.
Monitor water level, pressure, flow, and automatically control pumps and valves.
Manage lighting, HVAC, access control, and energy systems through a unified Modbus TCP network.
Acquire sensor data and control ventilation, irrigation, and environmental equipment.
Monitor battery systems, inverters, temperatures, alarms, and power parameters remotely.
Replace multiple devices with a single integrated controller.
Reduce wiring, cabinet space, and commissioning time.
Convert traditional equipment into standard Modbus TCP-connected assets.
Enable centralized monitoring, remote maintenance, and real-time data visibility.
BL190 is more than just a remote I/O module.
It is a compact edge controller that combines data acquisition, protocol conversion, logic control, and industrial networking into one device.
For system integrators, OEM manufacturers, and industrial end users looking for a cost-effective way to connect field equipment to SCADA systems, BL190 provides a practical and reliable solution.
BL190 — Turn Traditional I/O into Intelligent Industrial Data Nodes.
https://bliiot.com/products/modbus-tcp-edgeio-controller-bl190
