Overview

The ABB TU509 is part of the S500 I/O system within the AC500 PLC platform. It serves as a bus terminal block and interface unit, providing secure wiring and communication for distributed I/O modules. With screw terminal connections, the TU509 ensures robust and reliable wiring in industrial automation environments. Its compact, DIN‑rail mountable design allows seamless integration with ABB’s AC500 PLCs.

Technical Data

Key Features

• Supports 24 VDC modules in the S500 I/O system

• Screw terminal connections for secure and durable wiring

• Profibus/CAN interface via D‑Sub 9 connector

• Compact design with only 28 mm depth

• DIN rail mounting for quick installation

• Part of ABB’s AC500 PLC family for seamless integration

Typical Applications

• Industrial automation requiring distributed I/O communication

• Process control in petrochemical and refinery industries

• Power generation and energy systems with Profibus/CAN integration

• Manufacturing and robotics requiring secure wiring interfaces

• Marine and transportation automation solutions

FAQ

Q1: What is the primary function of the ABB TU509?
A1: It serves as a terminal unit for 24 VDC modules, providing the wiring interface and bus connection.

Q2: How is wiring connected?
A2: The TU509 uses screw terminals for secure and reliable connections.

Q3: What communication interfaces are supported?
A3: It supports Profibus and CAN via a D‑Sub 9 connector.

Q4: Can it be used in extreme environments?
A4: Yes, ABB offers XC versions of terminal units for harsh ambient conditions.

Q5: What PLC family does it belong to?
A5: It is part of the ABB AC500 PLC / S500 I/O system.