PHOENIX CONTACT INTERBUS IB ST 24 DO 16/3 – I/O module 2754914

INTERBUS-ST digital output module, 16 outputs, 24 V DC, 500 mA, 3-conductor connection technology, IP20 degree of protection, consisting of: terminal part with screw connection and module electronics

The IB ST 24 DO 163 is a compact, 16-channel Digital Output Module from Phoenix Contact’s renowned INTERBUS system. It is designed to connect actuators like valves, relays, contactors, and indicators to a centralized INTERBUS controller in industrial automation applications.

This module acts as a slave device on the INTERBUS network, receiving control signals from the master controller and switching 24V DC loads across its 16 channels.

Key Features & Specifications

• Product Family: INTERBUS

• Device Type: Digital Output Module (Actuator Interface)

• Order Number / Article Number: 2754914

• Number of Channels: 16

• Output Type: Digital, 24V DC

• Output Current: 0.5 A per channel

• Total Current per Module: 4 A (max.)

• Electrical Connection: Spring-clamp terminal block (easy to wire without tools)

• Bus Connection: INTERBUS via D-sub 9-pin connector (in/out for loop-through)

• Diagnostics: Per channel via LED indicators

• Mounting: Standard 35 mm DIN rail

Detailed Technical Description

1. Function and Application
The primary function of this module is to provide a robust interface between an INTERBUS control system (e.g., a PLC) and field-level actuators. It converts digital commands sent over the INTERBUS network into switched 24V DC power to control devices such as:

• Solenoid valves

• Motor starters and contactors

• Signal towers and warning lights

• Control relays

• Small DC motors

It is typically used in factory automation, assembly lines, and material handling systems where the high-speed and deterministic nature of the INTERBUS system is required.

2. Electrical Characteristics

• Supply Voltage: 24 V DC (for the output loads)

• Output Voltage: 24 V DC (from the supply)

• Output Current per Channel: 0.5 A

• Total Current per Module: 4 A (The sum of all 16 channels must not exceed this limit)

• Short-Circuit Protection: The outputs are electronically protected against short-circuits and overload.

3. Design and Connection

• Module Design: The module features a compact, modular ST (Super Tight) housing, allowing for high-density mounting on a DIN rail.

• Field Connection: The 16 output channels and the power supply for the loads are connected via a removable screwless terminal block, which significantly reduces wiring time.

• Bus Connection: The INTERBUS signal is connected via two D-sub 9-pin connectors (Input and Output), enabling a simple “loop-through” cabling topology from one station to the next without complex configuration.

4. Diagnostics and Indicators
Each of the 16 channels has a dedicated yellow LED that indicates the status of the output:

• LED ON: The output is active and switched on.

• LED OFF: The output is inactive.
  This per-channel diagnostics allows for quick troubleshooting and maintenance directly at the module.

5. INTERBUS System Integration
As part of the INTERBUS family, this module benefits from the system’s key advantages:

• Deterministic Data Exchange: Guaranteed cycle times for real-time control.

• Simple Configuration: The module is automatically recognized and configured by the INTERBUS master during startup (plug & produce).

• Ruggedness: Designed for harsh industrial environments with high noise immunity.