Product Overview

The Siemens 6AV2124-2DC01-0AX0​ is a compact yet powerful 4.3-inch widescreen HMI (Human Machine Interface) belonging to Siemens’s renowned SIMATIC HMI KTP400 Comfort Panel family. As a genuine Siemens automation component, the Siemens 6AV2124-2DC01-0AX0​ combines the intuitiveness of analog-resistive touchscreen operation with the precision of four tactile function keys, each equipped with an integrated status LED. Within the modern machine-level automation architecture, the Siemens 6AV2124-2DC01-0AX0​ serves as the primary operator interface that bridges human intent and machine intelligence, delivering crisp process visualization and reliable control for compact machines, localized workcells, and distributed operator stations.Featuring a brilliant 4.3-inch widescreen TFT display with 480×272 pixel resolution and 16,777,216 colors, the Siemens 6AV2124-2DC01-0AX0​ presents process graphics, alarm lists, recipe data, and trend charts with remarkable clarity despite its compact footprint. Running on the Windows CE 6.0 operating system with 4 MB of user memory, the Siemens 6AV2124-2DC01-0AX0​ handles sophisticated visualization projects created in WinCC Comfort V11 and higher versions of the TIA Portal engineering framework. The 0–100% dimmable LED backlight delivers an impressive 80,000-hour MTBF at 25°C, ensuring years of maintenance-free visual service even under 24/7 operation.As of late 2025, the Siemens 6AV2124-2DC01-0AX0​ remains an active product within Siemens’s PM300 lifecycle status—a current-production MRO and new-build SKU, not a phase-out model. This contrasts with many legacy HMI panels that have been relegated to spare-part-only status. With a PROFINET interface, MPI/PROFIBUS DP interface, RS422/485 port, USB 2.0 host, USB Mini-B service port, and 2 SD card slots, the Siemens 6AV2124-2DC01-0AX0​ provides unmatched connectivity flexibility for its size class. Its IP65-rated front panel, DC 24 V power supply, and 140×116×49 mm flush-mount dimensions make the Siemens 6AV2124-2DC01-0AX0​ the definitive choice for machine builders and panel shops who demand both performance and compactness from their HMI infrastructure.

Technical Specifications

Main Features and Advantages

The Siemens 6AV2124-2DC01-0AX0​ delivers a compelling combination of compact design, dual-mode operation, and communication versatility that establishes it as the benchmark in the 4-inch HMI category. At the heart of its appeal is the hybrid operator interface: the Siemens 6AV2124-2DC01-0AX0​ marries an analog-resistive touchscreen with four tactile function keys, each with an integrated LED for status feedback. This design gives operators the flexibility to use intuitive touch gestures for navigation while relying on physical buttons for critical, repeatable actions—such as emergency stop acknowledgment, mode selection, or start/hold commands—where tactile confirmation reduces error rates. The touchscreen of the Siemens 6AV2124-2DC01-0AX0​ also supports 32 direct touch keys configured as S7 input peripherals, effectively turning the display into a customizable virtual keypad.Brilliant widescreen visualization:Despite its compact 4.3-inch diagonal, the Siemens 6AV2124-2DC01-0AX0​ renders process graphics with 480×272 pixel resolution and 16.7 million colors. This high-fidelity visualization capability enables operators to monitor machine status, distinguish alarm states, and interact with detailed graphical interfaces without eye strain. The LED backlight of the Siemens 6AV2124-2DC01-0AX0​ is fully dimmable from 0–100% and delivers an exceptional 80,000-hour MTBF, ensuring years of maintenance-free visual service.Comprehensive communication portfolio:Connectivity is where the Siemens 6AV2124-2DC01-0AX0​ truly excels. The single PROFINET RJ45 port with integrated switch allows daisy-chain Ethernet connections without external network hardware. The combined RS422/485 interface for MPI/PROFIBUS DP ensures seamless integration with legacy Siemens PLCs including S7-300, S7-400, as well as modern S7-1200 and S7-1500 controllers. Native support for Modbus and EtherNet/IP protocols means the Siemens 6AV2124-2DC01-0AX0​ effortlessly communicates with third-party devices—drives, sensors, and controllers from other manufacturers. Two USB ports (one host, one Mini-B service) and two SD card slots provide extensive local connectivity for data logging, recipe storage, project backup, and service access.