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　　SCN203 Other Names:

　　Input/Output Module SCN203

　　SCN203 Analog Module

　　Communication Module SCN203

　　Technical Features

　　Core Functions: The module integrates a CPU, RAM, timers, and multiple interfaces (such as I/O, RS-485, infrared remote control), supporting real-time data acquisition, power quality monitoring, load control, and remote communication (such as 3G networks). For example, in smart power systems, the main control module 203 can coordinate power metering, relay control, and wireless communication functions.

　　Interface Design: Includes a CAN-BUS bus interface, Ethernet port, and dedicated expansion interfaces (such as DIZ 232.1, SSI 232.1), compatible with rail transit signaling systems, power monitoring equipment, and industrial automation equipment.

　　Reliability: Adopts industrial-grade design, adaptable to a wide temperature range of -40℃ to 70℃, and certified by ISO9001, 13485, and other quality management systems, ensuring stable operation under harsh conditions.

　　Other Control Module Models:

　　AL129A: Industrial-grade controller module, supports Modbus and IEC 60870-5-101/104 protocols, suitable for substation automation, power distribution monitoring, and SCADA systems. Features redundant CPU/communication channels, resists EMC interference, and operates at temperatures from -20℃ to 60℃.

　　EPSD-0603: Rail transit/power control core module, supports IEC 61850 and CAN bus, used for subway traction power supply protection and power plant logic control. Plug-in installation, compatible with SCADA systems. PIB310 3BHB0190: High-power control module (input 110V~380V AC, output 24V DC, maximum current 2000A), suitable for railway power management and wind farm inverter control. Dimensions: 100mm×100mm×50mm, protection rating: IP20.

　　SPU232: Embedded control unit for high-speed rail signal processing and automatic driving data analysis. Supports Ethernet/IP, operating temperature -20℃ to 70℃, widely used in urban rail transit projects in China.

　　AL132: Programmable controller module, supports IEC 61131-3 programming, communication interface includes Ethernet/RS-485, configurable storage capacity, suitable for metallurgical and chemical process control.

　　Application Scenarios

　　Rail Transit: As a core component of train control systems (such as signal processing and motor control), it supports precise control and fault diagnosis in high-speed railways and urban rail transit.

　　Power Equipment: Used in smart meters, substation monitoring, and distributed energy management systems to achieve power quality monitoring, load dispatching, and remote upgrade functions.

　　Industrial Automation: Used as an expansion module for PLCs or DCSs in intelligent manufacturing and process control, supporting multi-protocol communication and real-time data processing.

　　Communication Protocols and Compatibility

　　Mainstream Protocols: Modbus RTU/TCP, IEC 61850, CAN bus, Ethernet/IP, Profibus.

　　Compatibility: Modules support hot-swapping (e.g., LC105) and can be integrated with Siemens, ABB, and other systems. For example, the AL132 can be used with Alstom I/O modules to expand the number of input/output points.

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