ABB DC523 S500 Configurable Digital Input/Output Module – 1SAP240500R0001

The ABB DC523, product number 1SAP240500R0001, is a flexible S500 digital input/output module designed for ABB AC500 industrial automation and distributed I/O applications.

The module provides 24 configurable digital I/O channels. Each configurable channel can be used according to the PLC configuration as a digital input or digital output, allowing the module to adapt to different machine and process-control requirements.

24 Configurable Digital I/O Channels

The key advantage of the DC523 is its flexible 24-channel configurable DI/DO architecture. Instead of having a fixed number of inputs and outputs, the channels can be assigned according to the application's I/O requirements.

This makes the DC523 particularly useful for automation projects where the required balance between digital inputs and outputs can vary.

24V DC Industrial I/O

The DC523 is designed for standard 24V DC industrial control systems. When configured as digital outputs, the channels use transistor switching with a rated output of 24V DC / 0.5A.

Integrated Auxiliary Terminals

The module incorporates additional field-wiring connections including:

• 4 auxiliary 0V terminals
• 4 auxiliary 24V DC terminals

These auxiliary terminals simplify connection of compatible field devices and sensors within the control cabinet.

Fast Counter Function

The DC523 includes a fast counter function for applications requiring higher-speed digital pulse acquisition. This expands its usefulness beyond standard ON/OFF digital signal processing.

Galvanic Isolation

The module provides module-wise galvanic isolation, helping electrically separate the field-side digital I/O from the internal automation-system electronics.

LED Status Indication

The DC523 provides individual visual status indication for its configurable channels. The module includes 24 yellow LEDs corresponding to channels C0 through C23, together with process-supply and diagnostic indicators.

Key Specifications

Manufacturer	ABB
Model	DC523
Product Number	1SAP240500R0001
Product Family	ABB S500 / AC500
Product Type	Configurable Digital Input / Output Module
Configurable Digital I/O	24 Channels
Nominal I/O Voltage	24V DC
Output Type	Transistor
Output Voltage	24V DC
Output Current	0.5A
Input Voltage Type	DC
Typical Input Current	5mA
Supply Voltage Range	20.4–28.8V DC
Input Delay	Configurable, 0.1–32ms
Auxiliary 0V Terminals	4
Auxiliary 24V DC Terminals	4
Fast Counter	Supported
Galvanic Isolation	Module-Wise
Protection Rating	IP20
Operating Temperature	0°C to +60°C
Dimensions (W × H × D)	67.5 × 76 × 62 mm
Net Weight	Approx. 0.115 kg
Lifecycle Status	Active

Typical Applications

• ABB AC500 PLC Systems
• ABB S500 Distributed I/O Systems
• Industrial Machine Automation
• Factory Automation
• Digital Sensor Inputs
• Push Button and Limit Switch Inputs
• Proximity Sensor Inputs
• Relay and Contactor Control
• Solenoid Valve Control
• Indicator and Signaling Circuits
• Pulse Counting Applications
• Conveyor Control Systems
• Packaging Machinery
• Industrial Equipment Repair and Maintenance

Important Configuration Information

The 24 channels are configurable digital I/O channels; this should not be interpreted as 24 dedicated inputs plus 24 dedicated outputs. The actual DI/DO allocation depends on the PLC hardware configuration and application requirements.

The DC523 is part of the ABB S500 I/O system and requires a compatible terminal unit and appropriate ABB AC500/S500 system hardware for installation.