In most procurement cycles, ELECTRIC-HMISTU855 is considered with Schneider VFD, Mitsubishi HMI and Schneider Electric Hmigxu5512, giving decision-makers confidence that they’ve chosen the most dependable component.
Schneider HMISTU855 Human Machine interface
Schneider Harmony STO STU HMISTU855 is a 5.7" TFT color touchscreen with 65536 colors and a PROFINET interface. Designed for industrial automation, it offers seamless integration with Ethernet, RS232/RS485 connectivity, and 24 V DC power supply, making it ideal for precise monitoring and control systems.
| Brand | Schneider |
| Product Type | Human Machine Interface (HMI) |
| Product | HMISTU855 |
Schneider HMISTU855 Human Machine interface – Technical Specifications
| Specification | Value |
|---|---|
| Display Resolution | 320 x 240 pixels QVGA |
| Realtime clock | Access to the PLC real-time clock |
| NEMA degree of protection | NEMA 4X front panel indoor use) |
| Depth | 2.2 in (56.5 mm) |
| Display size | 5.7 inch |
| Resistance to electromagnetic fields | 9.1 V/m (10 V/m) IEC 61000-4-3 |
| Display colour | 65536 colours |
| Width | 6.4 in (163 mm) |
| Cut-out dimensions | - |
| Enclosure Material | PC/PBT and PAA |
| Processor frequency | 333 MHz |
| Power Consumption in W | 6.8 W |
| [Us] rated supply voltage | 24 V DC |
| Electromagnetic compatibility | - |
| Relative humidity | 0…85 % without condensation |
| Height | 5.08 in (129.15 mm) |
| IP degree of protection | IP20 IEC 60529 rear panel)IP65 IEC 60529 front panel) |
| Net Weight | - |
| Range of Product | Harmony STO & STU |
| Ambient Air Temperature for Operation | 32…122 °F (0…50 °C) |
| Inrush current | 30 A |
| Integrated connection type | 1 USB 2.0 type mini B1 USB 2.0 type A COM1 serial link - female RJ45 - RS232C/RS485 <= 115.2 kbits/s) power supply - removable screw terminal block 1 Ethernet - RJ45 |
| Display Type | QVGA TFT colour touchscreen |
| Operating System | Harmony |
| Touch panel | Analogue |
| Memory description | Application memory 16 MBBack up of data 64 kB |
| Ambient Air Temperature for Storage | -4…140 °F (-20…60 °C) |
| Vibration resistance | +/- 3.5 mm 5…9 Hz) IEC 60068-2-61 gn 9…150 Hz) IEC 60068-2-6 |
| Brightness | 16 levels |
| Product or Component Type | Touch panel screen |
| Operating altitude | <= 6561.68 ft (2000 m) |
| Shock resistance | 15 gn 11 msIEC 60068-2-27 |
| Supply | External source |
The Schneider HMISTU855 is a compact 5.7-inch HMI (Human Machine Interface) from the Harmony STO & STU range, designed to deliver intuitive machine control and real-time visualization in industrial automation systems. Featuring a QVGA TFT color touchscreen with 320 x 240 resolution and 65,536 colors, it provides clear, vibrant graphics that make process monitoring and operator interaction simple and efficient.
Built for durability, the HMISTU855 operates on a 24 V DC supply with low 6.8 W power consumption, ensuring energy efficiency for continuous industrial use. Its 333 MHz processor, combined with 16 MB application memory and 64 kB backup memory, supports smooth performance and reliable data storage. With an IP65-rated front panel for dust and water protection, and an IP20 rear panel for safe enclosure integration, this HMI is engineered for long-lasting performance. The unit supports USB 2.0, Ethernet RJ45, RS232C, and RS485 interfaces, making it easy to integrate with PLCs and automation devices. It also offers real-time clock access, vibration resistance of +/- 3.5 mm, and shock resistance up to 15 gn, meeting IEC standards for industrial resilience.
In industrial applications, the Schneider HMISTU855 is widely used in packaging lines, compact control panels, machine interfaces, and process automation systems where reliability and clear visualization are critical. Measuring 163 mm width, 129.15 mm height, and 56.5 mm depth, it is easy to install in space-constrained panels. Its resistance to electromagnetic fields (up to 9.1 V/m) and electrostatic discharge protection (up to 8 kV) ensures stable operation even in electrically noisy environments. Designed to withstand harsh conditions with operating temperatures of 0…50 °C and altitudes up to 2000 m, the HMISTU855 combines performance, durability, and integration flexibility. Trusted by automation engineers, the HMISTU855 is a reliable choice for modern industrial automation projects.
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