REF542plus Configuration Tool 4.1

REF542plus Configuration Tool is a desktop application for configuring, parameterizing, and maintaining REF542plus protection and control units used in medium-voltage switchgear. It supports both offline engineering and online commissioning, helping engineers build consistent device configurations, adjust protection settings, define interlocking and automation logic, and tailor the local HMI within a project-based workflow.

Key capabilities:

• Create and manage device projects and reusable templates
• Set protection thresholds, time characteristics, and operating modes
• Configure I/O mapping, command interlocking, and logic functions
• Customize indications, LEDs, and single-line mimic displays on the local panel
• Define communication parameters and signal mappings for the interfaces supported by the device
• Upload/download parameters, create backups, and compare configurations
• Access diagnostics, event lists, and live measurements to support testing and maintenance

This tool is intended for protection engineers, commissioning teams, and switchgear OEMs working with REF542plus-based bays in secondary distribution applications. It helps reduce commissioning time, improve configuration consistency, and simplify ongoing maintenance.

REF542plus Configuration Tool is developed by ABB Power Technology Ltd. The most popular versions of this product among our users are: 2.4 and 4.1. The name of the program executable file is scuconf32.exe.