Product Overview

• PN:DSDX452｜Brand:ABB｜Series:S400 Remote I/O Advant Master DCS｜Type:Mixed Digital DI/DO Module

• Definition:Standard distributed digital I/O unit of ABB classic S400 remote I/O series, equipped with 20 channels 24VDC digital input and 12 channels mechanical relay output, collects field switch, proximity sensor and interlock feedback signals, outputs contact signals to control on-site valves, contactors and auxiliary equipment, communicates with Advant Controller 410/450 via MasterFieldbus bus, core original spare for aging distributed I/O station overhaul and signal channel fault replacement

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Core Features

• Integrated 20DI +12DO mixed signal layout, DI supports standard 24VDC PNP/NPN sensor signals with built-in contact anti-chatter filtering circuit
• DI channels adopt optocoupler isolation, DO uses mechanical relay isolation, 500VAC isolation grade to suppress ground loop and electromagnetic interference in power, petrochemical, metallurgy harsh workshop environment
• Relay output contact supports 24~240V AC/DC wide voltage load, single channel max carrying current 3A, suitable for most on-site small actuator control
• Die-cast aluminum shell structure, shock and vibration resistant, adapts long-distance field distributed installation up to 750m away from central control cabinet
• Front panel independent LED status indicators for each DI channel, plus module running, bus communication and relay output fault alarm lights for fast on-site troubleshooting

• Dedicated MasterFieldbus serial bus interface, supports redundant bus communication to ensure uninterrupted process signal transmission

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Technical Specs

• Module auxiliary power supply:120/220/240V AC 50/60Hz
• Digital input:20 channels, 24VDC sinking/sourcing signal
• Relay digital output:12 channels, single channel max load 3A
• Isolation strength:500V AC galvanic isolation between field signal and internal bus circuit
• Operating temp:-20℃~+50℃｜Storage:-40℃~+85℃,RH5%~95% non-condensing
• Net weight:1.1kg｜Dimension:215×160×72mm
• HS Code:85389091

• Certification:CE, UL certified

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Compatibility

Perfectly matched with ABB Advant Master S400 remote I/O system, compatible with Advant Controller 410/450, DSBB175 rack backplane, DCP02/DCP10 CPU and CI520V1 AF100 communication card; incompatible with S600/S800 I/O, 800xA DCS, AC500 PLC and ACS series inverters

Application

• Spare replacement for distributed remote I/O stations of thermal power plant, chemical factory, papermaking factory Advant Master DCS control system

• Field interlock signal collection, valve on-off and auxiliary motor start-stop control renovation for continuous process production lines

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Our Advantage

• Full DI channel signal acquisition and relay load aging testing before shipment
• 12-month global warranty for all stocked products
• DHL/Fedex worldwide door-to-door delivery
• Free technical support for S400 bus wiring, channel configuration and fault troubleshooting