The transition from traditional PLCs to modern ARM controllers represents a major upgrade in industrial automation architecture. Powered by the TI AM62x, the BL350 is more than an embedded controller—it is a forward-looking edge intelligent control platform for Industry 4.0 and smart manufacturing.
Case Details
For decades, Programmable Logic Controllers (PLCs) have been the cornerstone of industrial automation. However, with the rapid advancement of Industry 4.0, edge computing, Industrial IoT (IIoT), and AI applications, traditional PLCs are showing limitations in computing power, openness, protocol extensibility, and IT/OT convergence.
The ARMxy BL350 industrial embedded controller, powered by the TI Sitara AM62x processor, is emerging as a key next-generation solution for industrial control systems. It seamlessly integrates high-performance computing, real-time control, and an open ecosystem, driving the evolution from pure logic control to an intelligent platform combining control + data + AI + cloud collaboration.
Strengths and Limitations of Traditional PLCs
Strengths
- Exceptional stability and reliability
- Strong real-time response
- IEC 61131-3 standard programming
- Robust anti-interference capability
Limitations
- Limited computing power: Struggles with edge AI, machine vision, and complex data analytics
- Closed protocols: High cost and long cycles for expanding industrial protocols (e.g., EtherCAT)
- Difficult IT/OT integration: Complex to connect with MQTT, Docker, databases, and web services
- High upgrade costs: Tight hardware-software coupling hinders flexibility
Industrial control systems are shifting toward comprehensive intelligent platforms.
BL350 Core Architecture: Heterogeneous Multi-core Design Based on AM62x
The BL350 features the TI Sitara AM62x processor with a heterogeneous multi-core architecture:
- 1–4× ARM Cortex-A53 cores (up to 1.4 GHz) — for Linux applications, visualization, protocol stacks, and AI inference
- 1× Cortex-M4F (400 MHz) — dedicated to hard real-time control tasks
- PRU-ICSS real-time units — for high-speed I/O and protocol handling
- Cortex-R5F system management core
This “compute-control separation” design significantly outperforms the single-CPU architecture of traditional PLCs, balancing high performance and deterministic real-time behavior.
Industrial-grade Reliability
While delivering powerful performance, the BL350 meets stringent industrial requirements:
- Operating temperature: -40°C to +85°C
- EMC: Level III
- EFT: ±2 kV / Surge: 4 kV
- Protection: IP30
- Mounting: DIN35 rail
It combines proven industrial robustness with IT-level flexibility.
Comprehensive Software Ecosystem: From PLC to Industrial Edge Platform
The BL350 supports a full industrial software stack:
Control Layer
- OpenPLC, CODESYS Runtime, Beremiz
Protocols & Data Acquisition
- EtherCAT Master
- BLIoTLink protocol conversion
- Modbus, MQTT, OPC UA
Edge Computing & Visualization
- Node-RED
- FUXA, Grafana
- Docker / K3s microservices
Rather than merely replacing a PLC, the BL350 serves as an integrated edge intelligent platform for control, data acquisition, protocol conversion, visualization, AI inference, and cloud connectivity.
Modular I/O Design for Maximum Flexibility
Featuring an X + Y modular board structure:
X Series (Communication Expansion): RS485, RS232, CAN, GPIO, etc. Y Series (Industrial I/O): DI/DO, AI/AO, PT100/PT1000, thermocouples, PWM, pulse counting, relay outputs, etc.
Compared to fixed I/O in traditional PLCs, BL350 enables:
- Flexible on-site configuration
- High customization
- Future-proof scalability
Comparison: Traditional PLC vs. BL350 ARM Controller
| Dimension |
Traditional PLC |
BL350 (AM62x-based) |
| Real-time Control |
Strong |
Strong (M4F + PRU) |
| Edge Computing |
Weak |
Strong |
| AI Capability |
None / Minimal |
Supports TensorFlow Lite / YOLO |
| Protocol Extension |
Limited |
Open Linux ecosystem |
| Containerization |
Not supported |
Docker supported |
| Remote Maintenance |
Limited |
Cloud-enabled remote O&M |
| IT/OT Convergence |
Difficult |
Native support |
Typical Application Scenarios
- PLC replacement/upgrade
- Motion control systems
- Energy storage EMS / BMS
- AGV/AMR robot control
- Industrial machine vision
- EV charging station controllers
- Smart manufacturing lines
- Edge computing gateways
Why BL350 Is the “New Choice” for Industrial Automation
Industrial automation has entered the era of control logic + data value + cloud synergy + AI decision-making. While traditional PLCs focus on “reliable control,” the BL350 is positioned as an industrial intelligent edge platform.
Key advantages:
- Heterogeneous multi-core high-performance architecture
- Linux real-time OS
- High compatibility with PLC software
- Fully open development environment
- Containerization and cloud-native capabilities
- Industrial-grade reliability and long-term availability
Conclusion The transition from traditional PLCs to modern ARM controllers represents a major upgrade in industrial automation architecture. Powered by the TI AM62x, the BL350 is more than an embedded controller—it is a forward-looking edge intelligent control platform for Industry 4.0 and smart manufacturing. If your project is moving from “single-point control” to “data-driven intelligent control,” the BL350 is a compelling option worth serious consideration.
