ABB 3ASC25H204 DAPU100 Central processing unit
Specific Parameters
- Electrical ParametersSupply Voltage: 24V DC, supporting 19.2-30V wide-range inputCPU Type: 32-bit high-performance processorProgram Memory: 2MB, with battery backup supportData Memory: 1MB, expandableCommunication Interfaces: 1×10/100M Ethernet (RJ45), 1×Profibus-DP master interfaceSupported Protocols: Modbus TCP, Ethernet/IP, Profibus-DPExpansion Capacity: Up to 127 expansion modulesDigital Channels: Some configurations include 16 digital inputs and 16 digital outputsOutput Load: Relay output with maximum load current 2A per channelProgramming Standard: IEC 61131-3 (LD, FBD, ST, IL, SFC)
- Environmental ParametersOperating Temperature: -40°C to 70°CStorage Temperature: -40°C to 85°CProtection Class: IP20Anti-interference: Complies with industrial EMC standards, suitable for complex electromagnetic environments
- Mechanical ParametersMounting Method: Standard DIN rail mounting, compatible with AC500 series racksIndicators: RUN, STOP, fault diagnosis indicatorsOperation Mode: Support RUN/STOP mode switching
Product Performance
It features fast instruction processing speed, with a boolean operation scan cycle as low as 0.08μs and a typical program scan cycle of 5ms/k instructions, enabling rapid response to real-time control requirements such as high-speed counting and PID regulation. It supports multi-task parallel processing, allowing assignment of safety logic and process control to independent tasks without mutual interference, improving system stability and maintainability.
Communication response is efficient. Dual independent communication ports can simultaneously achieve high-speed data exchange with SCADA systems, HMI and remote I/O, ensuring seamless integration of industrial networks. It is equipped with comprehensive self-diagnostic functions and a hardware watchdog, which can real-time monitor power supply, communication and module status, triggering local alarms and remote signal uploads when faults occur.
It has strong parameter compatibility, supports battery backup for programs and key data with no data loss after power failure. Fully compatible with ABB Automation Builder platform, it enables custom control logic development through five standard programming languages.















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