ABB AX521 Analog Input/Output Module – High-Performance I/O Solution for Industrial Automation

The ABB AX521 is a robust analog input/output (I/O) module designed for industrial applications that require precise signal processing and control. Part of ABB’s trusted S500 I/O series, the AX521 module offers 4 analog inputs (AI) for voltage (U), current (I), and RTD sensors, as well as 4 analog outputs (AO) for voltage (U) and current (I) signals.

Built for flexibility and efficiency, the AX521 supports 1-wire communication and is ideal for a wide range of automation tasks, including monitoring and control systems across manufacturing, utilities, and processing industries. Its compact design ensures easy integration into existing control architectures, delivering reliable performance in demanding environments.

With its high-quality build and versatile functionality, the ABB AX521 helps enhance system accuracy, improve signal reliability, and optimize process control operations.

Key Features:

• 4 Analog Inputs (Voltage, Current, RTD)

• 4 Analog Outputs (Voltage, Current)

• Supports 1-wire connection

• Compact and efficient design

• Reliable solution for industrial automation systems

• Part of ABB’s proven S500 I/O family