Sale!
7EX484.50-1
7EX484.50-1
7EX484.50-1

B&R 7EX484.50-1 2003 POWERLINK Bus Controller

  • Model: 7EX484.50-1
  • Brand: B&R Industrial Automation
  • Series: B&R System 2003 / EX484
  • Core Function: Connects System 2003 I/O to POWERLINK
  • Product Type: POWERLINK bus controller module
  • Key Specs: 4 × POWERLINK ports; 24 VDC; electrically isolated
  • Network: Ethernet POWERLINK, 100BASE-T
  • Terminal Block: TB704, ordered separately
  • Status: Legacy System 2003 component

B&R’s official product page identifies 7EX484.50-1 as a 2003 POWERLINK bus controller with four POWERLINK interfaces, 24 VDC supply, and electrical isolation.

Get a Quote
Categories: , , , SKU: 7EX484.50-1 Brand:

Description

Key Technical Specifications

Parameter Value
Manufacturer B&R Industrial Automation
Order Number 7EX484.50-1
Product ID EX484
System B&R System 2003
Product Type POWERLINK bus controller
POWERLINK Interfaces 4 × RJ45
Ethernet Standard 100BASE-T / IEEE 802.3
Maximum Data Rate 100 Mbit/s
Maximum Segment Length 100 m between stations
Supply Voltage 24 VDC
Permitted Supply Range 18–30 VDC
Power Consumption Approximately 20 W
I/O Module Power Available Approximately 10.4 W
I/O Bus Interface 9-pin D-sub socket
Station Address Front-panel station-number dial
Electrical Isolation PLC/control side ↔ POWERLINK interface
Protection Rating IP20
Operating Temperature — Horizontal 0 °C to +60 °C
Operating Temperature — Vertical 0 °C to +50 °C
Storage Temperature −20 °C to +70 °C
Humidity 5–95%, non-condensing
Terminal Block 0TB704.9 / 0TB704.91
Mounting System 2003 single-width module
7EX484.50-1

7EX484.50-1

7EX484.50-1

7EX484.50-1

The B&R System 2003 documentation specifies the four-port internal hub, 100BASE-T interface, 100 Mbit/s maximum rate, 18–30 VDC supply range, approximately 20 W power input, IP20 protection, and the station-number dial.

B&R specifies 0TB704.9 as the 4-pin screw-clamp terminal block and 0TB704.91 as the 4-pin cage-clamp version; the terminal block must be ordered separately.

 

Product Introduction

The B&R 7EX484.50-1 (EX484) is a System 2003 Ethernet POWERLINK bus controller. It provides four RJ45 POWERLINK interfaces through an integrated hub and connects the System 2003 I/O bus to the real-time Ethernet network. The module operates from 24 VDC and provides electrical isolation between the controller and POWERLINK interface.

This is a legacy B&R networking component, so replacement work should focus on maintaining the existing POWERLINK topology and System 2003 I/O configuration. B&R continues to provide the original product page and a version 1.0 datasheet dated June 8, 2004.

 

Installation & Configuration Guide

Stage 1: Pre-Installation Preparation — Approximately 10 minutes

⚠️ Safety First: Place the machine in its approved safe state. Isolate the 24 VDC control supply and apply the site’s lockout/tagout procedure before removing the EX484 module.

Tools Required:

  • ESD wrist strap
  • Digital multimeter
  • Small screwdriver
  • Wire labels
  • Camera/smartphone
  • POWERLINK diagnostic equipment, if available

Data Backup:

  1. Record the complete part number: 7EX484.50-1.
  2. Record the module revision.
  3. Photograph the module and all four RJ45 connections.
  4. Record the POWERLINK station number.
  5. Document the System 2003 I/O modules connected downstream.
  6. Photograph the 9-pin D-sub I/O bus connection.
  7. Record the 24 VDC supply wiring.
  8. Back up the Automation Studio project.

⚠️ The station number is important. The EX484 uses a station-number dial for setting its POWERLINK station address.

Stage 2: Removing the Old Module — Approximately 5 minutes

  1. Stop the machine using the approved procedure.
  2. Isolate the 24 VDC supply.
  3. Verify that the module is de-energized.
  4. Label the four POWERLINK cables.
  5. Photograph their port positions.
  6. Disconnect the RJ45 cables.
  7. Disconnect the System 2003 I/O bus connection.
  8. Disconnect the 24 VDC supply.
  9. Remove the module from its mounting position.
  10. Inspect the connectors and backplane interface.

⚠️ Do not assume the four RJ45 ports are interchangeable from a network-topology perspective. Preserve the existing cable arrangement during replacement unless the B&R engineering configuration explicitly permits a topology change.

Stage 3: Installing the New Module — Approximately 5–10 minutes

  1. Verify the exact model: 7EX484.50-1.
  2. Confirm the replacement is an EX484.
  3. Install the module in the System 2003 controller position.
  4. Secure the module mechanically.
  5. Connect the 9-pin D-sub I/O bus.
  6. Connect the 24 VDC supply.
  7. Set the station-number dial to the original value.
  8. Reconnect each POWERLINK cable to its documented port.
  9. Verify cable shielding and grounding.
  10. Check the installation before energizing.

Configuration Clone — Crucial:

Verify:

  • POWERLINK station number
  • Network topology
  • Node configuration
  • System 2003 I/O module sequence
  • I/O addresses
  • Automation Studio hardware configuration
  • Error-handling behavior
  • 24 VDC supply capacity

The EX484 documentation identifies the module as occupying System 2003 module slot 1 and provides a 9-pin D-sub I/O bus interface.

Stage 4: Power-On & Testing — Approximately 10–15 minutes

  1. Energize the 24 VDC supply.
  2. Check the module status LED.
  3. Confirm the POWERLINK network initializes.
  4. Verify the station number.
  5. Check communication with the controller.
  6. Confirm all downstream System 2003 I/O modules are detected.
  7. Check I/O diagnostics.
  8. Verify representative digital and analog channels.
  9. Check for POWERLINK communication errors.
  10. Run a controlled machine cycle.

Recommended Test Matrix:

Test Expected Result
24 VDC supply Within 18–30 VDC operating range
Module status Normal
Station number Matches original configuration
POWERLINK communication Network initializes correctly
I/O bus Downstream modules detected
Digital I/O Correct state changes
Analog I/O Correct values
Network diagnostics No unexplained errors
Machine cycle Normal control response

 

Frequently Asked Questions (FAQ)

What is B&R 7EX484.50-1?

It is a B&R System 2003 POWERLINK bus controller. It connects System 2003 I/O to an Ethernet POWERLINK network and provides four RJ45 POWERLINK interfaces.

How many POWERLINK ports does the 7EX484.50-1 have?

It has four POWERLINK interfaces through an integrated hub. The documented interface is 100BASE-T with a maximum data rate of 100 Mbit/s.

What power supply does it require?

The module uses 24 VDC, with the documented permissible supply range of 18–30 VDC. The published technical documentation gives approximately 20 W power input.

Does the 7EX484.50-1 include the terminal block?

No. B&R specifies the TB704 terminal block as a separately ordered accessory. The documented options are 0TB704.9 screw clamp and 0TB704.91 cage clamp.

What is the difference between 7EX484.50-1 and 7EX484501?

They refer to the same B&R part, with 7EX484501 commonly used as an alternative condensed reference without punctuation. B&R’s official material number is 7EX484.50-1.

Is 7EX484.50-1 obsolete?

It is a legacy System 2003 component. B&R’s current product site still hosts the product information and original documentation, while specialist suppliers classify available units as legacy/used/new-old-stock inventory.

Can I replace it directly with an X20 POWERLINK module?

Not as a simple plug-in substitution. The X20 platform and System 2003 architecture use different hardware, I/O interfaces, addressing, and engineering configurations. A migration would require checking the controller, POWERLINK topology, I/O modules, Automation Studio project, and machine wiring.

What should I verify before purchasing a replacement?

For a production replacement, verify 7EX484.50-1, module revision, physical condition, station-number configuration, four-port POWERLINK arrangement, System 2003 I/O compatibility, and whether the required TB704 terminal block is already installed at the site. B&R’s original datasheet is dated 2004, so matching the existing hardware configuration is particularly important.

Related products