ABB DC523 1SAP240500R0001

Product Overview

DC523 is a high-density and flexible digital input/output hybrid module designed by ABB for the AC 500 series modular PLC. The 1SAP240500R0001 integrates 24 independent transistor channels within a standard I/O module width. Each channel can be configured by software as either a digital input or a digital output, significantly enhancing the module's flexibility and application adaptability.

This module adopts the "1-wire" wiring technology, which is a unique and efficient wiring method of ABB. Compared with the traditional "2-wire", the "1-wire" design concentrates the common reference potential of all channels onto a few dedicated terminals on the module, thereby significantly reducing the number of required terminal blocks and the workload of wiring inside the cabinet. DC523 is specifically designed for 24V DC control systems. Each output channel can drive a maximum load current of 0.5A. It is suitable for controlling common industrial DC loads such as relays, small solenoid valves, and indicator lights. At the same time, it can reliably collect 24V DC digital signals from devices such as proximity switches, buttons, and limit switches.

Product Functional Features

Software-configurable hybrid I/O

The unprecedented flexibility enables the 1SAP240500R0001 to have 24 channels freely combined in a single project, such as 16 inputs +8 outputs, or all 24 as inputs or outputs. This flexibility means that engineers can adjust I/O allocation according to actual needs in the later stage of the project or even on-site, without replacing hardware, which greatly improves engineering efficiency and reduces spare parts costs.

1-wire wiring technology

The revolutionary wiring simplification is the most prominent feature of the DC523. A traditional 24-channel DI/DO module may require more than 50 terminal blocks. By aggregating the positive and negative power supplies of all channels onto four terminals respectively, the number of wiring terminals has been reduced by more than half.

Fewer terminals mean smaller terminal blocks, shorter cables, and less wiring time, directly reducing material and labor costs. At the same time, the fewer the connection points, the lower the probability of errors, which enhances the reliability of the system.

Configurable input filtering

The 1SAP240500R0001 has strong anti-interference ability. With a typical input delay of 8ms, which can effectively filter out false signals caused by mechanical contact jitter or electrical noise, ensuring the stability and reliability of the input signal. For high-speed pulse signals, the delay time can be adjusted to the minimum to ensure the response speed.

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