The Schneider Electric Harmony PSA6 HMIPSA6A7D18W11 is a 15-inch all-in-one Panel PC built around an Intel Atom X7425E quad-core processor clocked at 1.5 GHz. It ships with Windows 11 IoT Enterprise 2024 LTSC 64-bit, making it a current-platform runtime for HMI/SCADA applications that need a full OS rather than a embedded-only environment. Power draw is 50 W from a 24 V DC supply, with a 30 A inrush at startup — factor the inrush into your DC supply sizing if multiple units share a single power rail. The front panel carries an IP66 rating, so it withstands washdown and dust ingress on the operator side; the rear is IP20, which is standard for panel interiors where the back of the unit is enclosed.
Display and touch
The 15-inch TFT LCD runs at 1024 x 768 (XGA) with a 4:3 aspect ratio and 16 million colours. Projected capacitive (PCT) touch means multi-touch gestures work without recalibration, and the backlight is rated for 70,000 hours at 25 °C — roughly eight years of continuous 24/7 operation before half-brightness.
Processor, memory and storage
The Intel Atom X7425E (1.5 GHz, quad-core) handles moderate data logging, web-visualisation servers, and local HMI runtime without a fan — cooling is natural convection (AN). The unit comes with 8 GB DDR5 on an M.2 module and a 128 GB M.2 SSD for the OS and application data. One additional M.2 slot is available for expansion.
Connectivity and I/O
I/O is laid out on the bottom edge: two USB 2.0 and two USB 3.1 Type A ports, three Gigabit Ethernet RJ45s (10/100/1000 BASE-T), one DisplayPort (DP++), and two serial ports — one RS-232 (SUB-D 9) and one RS-422/485 (SUB-D 9). Baud rates on the serial links range from 2400 to 115200 bps. The Ethernet ports support Modbus TCP, EtherNet/IP, and other industrial protocols over the standard Windows network stack.
Mounting and cut-out
Mounts either into a panel cut-out (349.5 x 281.5 mm, +1/-0 mm tolerance) or via VESA brackets. Fixing uses four M4 screws. Overall dimensions: 14.3 in wide x 11.6 in high x 2.3 in deep (362.4 x 294 x 58.8 mm). The rear depth is shallow enough that most standard 400 mm deep enclosures leave room for cabling and a DIN-rail power supply behind the unit.
Rated for operation from 32 to 122 °F (0 to 50 °C) with 0.6 m/s airflow, and storage from -4 to 140 °F (-20 to 60 °C). Pollution degree 2 (typical for control rooms and light industrial). Shock tested to 147 m/s² per IEC 61131-2 in all three axes. Vibration resistance: 3.5 mm amplitude at 5–9 Hz. Listed to UL 61010, which covers the safety requirements for measurement, control, and laboratory equipment.
The HMIPSA6A7D18W11 carries an active lifecycle status from Schneider Electric. It is a current-production part in the Harmony PSA6 family, which means BOM-qualified status for serial builds and no near-term end-of-life notice.