Harmony STO | 3.4" Monochrome Compact HMI Touch Panel, Tri-Color Backlight, 24V DC

Harmony STO | 3.4" Monochrome Compact HMI Touch Panel, Tri-Color Backlight, 24V DC About

The Schneider Electric HMISTO511 is an ultra-compact, high-efficiency 3.4-inch industrial monochrome HMI touch panel custom-engineered for space-restricted machine-level operator control and local system visualization. Belonging to the streamlined Harmony STO & STU family (formerly Magelis STO & STU), this entry-level display terminal stands out with its unique configurable tri-color LED backlight configuration, allowing operators to dynamically switch the screen background between Green, Orange, and Red to provide highly visible, real-time machine status or active error indicators right on the production floor. The backlit STN LCD screen outputs a clear 200 x 80 pixel resolution supporting 8 software-adjustable brightness levels and 16 contrast adjustment steps. Operators smoothly navigate automation configurations via a reliable, analog-resistive single-touch screen interface optimized for industrial field durability.