The DSDX453 5716075-AN is a high-performance remote input/output expansion unit, serving as a core component of the S400 I/O series under the ABB Advant Master DCS system, and is specially designed for industrial automation scenarios.
It can seamlessly expand the I/O capacity of multiple mainstream control systems such as ABB Bailey Infi 90 and Freelance. With its multi-channel signal processing capability, it realizes real-time acquisition of digital signals and issuance of control commands in industrial field, and is compatible with various interface types including dry/wet contacts.
Adopting a compact modular structure and supporting standard installation methods, this module also features anti-interference and wide temperature adaptability. It can provide stable I/O expansion support for centralized monitoring and decentralized control scenarios in various harsh industrial environments, making it a key device for improving control scale and flexibility in industrial automation systems.
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Technical Specifications
| Parameter Category | Details |
|---|---|
| I/O Configuration | 20 channels of 48V DC digital input, supporting dry/wet contacts; 12 channels of relay output with an output current range of 0.1–3A, capable of directly driving actuators such as solenoid valves and contactors. |
| Electrical Protection | Adopts photoelectric isolation technology; the isolation voltage between channels and between channels and ground reaches 2500V AC, effectively resisting electromagnetic interference in industrial field environments. |
| Physical Specifications | Net weight: approx. 2.8kg; Dimensions: 198mm × 216mm × 90mm; Compatible with DIN rail mounting, suitable for deployment in industrial control cabinets and remote I/O stations. |
| Environmental Adaptability | Operating temperature range: -25°C to 70°C; Protection class: IP54; Resistant to harsh industrial conditions such as dust and vibration. |
| Additional Functions | Supports hot swapping; equipped with LED indicators and status registers; features channel-level short-circuit, open-circuit detection and self-test functions; compatible with ABB Masterfield Bus SDB protocol, and can be expanded to support protocols including Modbus RTU and Profibus DP. |
Application Fields
Petrochemical Industry: Applied in scenarios such as oil refineries and ethylene cracking units, it can connect devices like temperature switches and liquid level sensors to expand the I/O capacity of DCS systems. It realizes interlock control of key equipment including reactors and compressors, as well as signal acquisition for anti-surge systems, ensuring the safety and stability of production processes.
Power & Energy Sector: Compatible with PLC and SCADA systems in thermal power plants and cogeneration plants, it is used for lubricating oil pump control of steam turbines, condition monitoring of high-voltage power transmission and transformation equipment, etc. It helps to quickly issue power grid dispatching instructions and improve the redundancy and reliability of unit operation.
Intelligent Manufacturing: Deployed in production lines such as automobile manufacturing, it can interface with robot workstations, conveyor lines and MES systems to expand the I/O points of PLCs. It achieves interlock control of robotic arm movements and real-time traceability of production data, simplifying equipment control links and shortening order delivery cycles.
Municipal Water Treatment: Utilized in sewage treatment plants for pump unit start-stop control and process parameter monitoring, it connects sensors such as pH meters and flowmeters. Under extreme working conditions like rainstorms, it can stably realize water level monitoring and linkage with drainage systems, ensuring the safety of urban drainage and flood control.
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