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Industrial Control
Power Electronics
PLC industrial control board
Core Features
● Industrial-grade control core
It features a high-performance ARM Cortex-M3 core with a main frequency of up to 72 MHz, equipped with a hardware divider and multiply-accumulate instructions, ensuring deterministic real-time control performance.
● Rich industrial interface integration
Onboard multi-channel isolated digital I/O, analog signal acquisition, and industrial communication buses (CAN, RS-485), enabling direct connection to sensors, actuators, and field devices.
● High-reliability design
The board-level design complies with industrial standards, and the chip supports an industrial-grade operating temperature range of -40℃ to +85℃. It features strong anti-interference capability and meets the demands of harsh industrial environments.
● Long-life supply
As a classic industrial-grade MCU, the STM32F1 series ensures long-term stable supply and guarantees the product’s lifecycle.
● Open-source ecosystem and rapid development
Supports mainstream development environments such as STM32CubeMX, Keil, and IAR. The ecosystem is mature and offers abundant resources, significantly shortening the product R&D cycle.
Email: sales@sengkeda.com
Core specification parameters
| Parameter Category | Detailed indicators |
| Main processor | STMicroelectronics STM32F103VET6 |
| CPU architecture | ARM Cortex-M3 @ 72 MHz |
| On-chip Flash | 512 KB |
| On-chip SRAM | 64 KB |
| Operating voltage | +3.3V (single-supply power) |
| Operating temperature | -40°C ~ +85°C (Industrial-grade standard) |
| Timer | Up to 11 timers (including advanced control PWM timers) |
| Watchdog | Independent Watchdog (IWDG) + Window Watchdog (WWDG) |
| Power consumption for power supply | Typical operating power consumption < 50 mA, supports low-power mode. |
| PCB process | 4-layer board with immersion gold plating, enhancing electrical performance and stability. |
Interface Information
All functions are led out via standard 2.54mm pin headers, making them easy to plug in, unplug, and integrate.
| Interface Type | Quantity/Specification | Function Description and Industrial Applications |
| Digital Input (DI) | Channel 16 (optocoupler isolation, optional) | Collect status signals from switches, buttons, proximity switches, and the like. |
| Digital Output (DO) | Channel 16 (relay or MOSFET output, optional) | Control relays, contactors, indicator lights, solenoid valves, and the like. |
| Analog Input (AI) | 8-channel 12-bit ADC (0–3.3V; external operational amplifier can be connected to condition the output to 0–10V/4–20mA) | Collect sensor signals such as temperature, pressure, and flow rate. |
| Analog Output (AO) | 2-channel 12-bit DAC (0–3.3V output) | Used to control variable frequency drives, servo drives, and the like. |
| Serial communication port | 3x USART (configurable as RS-232 / RS-485) | Connect to a touch screen, inverter, scanner, or establish communication with a host computer. |
| Industrial bus | 2x CAN 2.0B (isolated) | Connect to industrial networks such as CANopen and DeviceNet. |
| Debugging interface | 1x SWD | Program download and online debugging. |
| Power interface | 1x power terminal | +24V DC industrial-standard power input (onboard DC-DC conversion to 3.3V). |
| Expansion interface | FSMC (Parallel Bus) | Scalable SRAM, NOR Flash, TFT LCD screens, and more. |
| User interface | USB 2.0 Full-Speed | For program updates or virtual serial port communication. |
| RTC clock | Supports (external button battery backup) | Provide the system with a real-time clock for data logging and timed tasks. |
Software and Features
- Development environment: Supports Keil MDK, IAR Embedded Workbench, and STM32CubeIDE.
- Standard Library: Provides the HAL library and the LL library, and is compatible with the classic Standard Peripheral Library.
- Protocol Stacks: Freely available, including mature protocol stacks such as FreeRTOS, FatFs, LWIP, CANopen, and Modbus (RTU/ASCII/TCP).
- Example code: Provides complete example programs for I/O control, ADC acquisition, communication protocols, and more.
Typical application scenarios
- Industrial Automation: Small- and Medium-Sized PLC Controllers, CNC Machine Tool I/O Boards, and Automation Production Line Control Units.
- Smart Buildings: Elevator Controllers, Smart Access Control Systems, and Air Conditioning Control Systems.
- Power Monitoring: Smart Meters, Distribution Monitoring Units, Data Collectors.
- Textile machinery: spinning machine controllers, winding machine controllers.
- IoT gateway: Collects data from on-site devices and uploads it to the cloud platform via Ethernet or 4G.
Keywords：PLC industrial control board
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Guangzhou SENGKEDA Technology Co., Ltd
Contact: Elaine Huang
Service hotline: +86 20 8792 5274
Email: sales@sengkeda.com
Company Address: Building D, No. 1, Cai Pin Road, Science City, Huangpu District, Guangzhou, Guangdong Province
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