SIMATIC Unified Air

SIMATIC Unified Air 3.0 delivers a new way to securely access SIMATIC HMI Unified Comfort Panels with Access Key Authentication. Designed for industrial service and maintenance, Unified Air enables fast, temporary access without user accounts, device registration, or shared passwords. What’s new in version 3.0 • Secure, token-based Access Keys • Time-limited access with automatic expiration • No UMC accounts required for service technicians • No device registration at the panel • Role-based authorization via existing UMC aliases • Offline authentication via Bluetooth • No cloud, no central user management How it works Engineers generate cryptographically signed Access Keys for specific technicians, devices, and time windows. Technicians import the key into the app and authenticate seamlessly to nearby panels via Bluetooth. Once the key expires, access is revoked automatically — no manual cleanup required. Ideal for real-world industrial environments • Frequently changing technicians • External service providers • Long-running, unattended panels • Limited or no network connectivity Included features • Panel status visibility • Device information • Screenshot capture • Report generation Compatibility Requires SIMATIC HMI Unified Comfort Panels with V21 Update 1. SIMATIC Unified Air 3.0 turns secure access into a fast, controlled, and maintenance-free process — built for industrial reality.