HMISTU855 5.7" Colour Touch Panel HMI 320x240 QVGA | Schneider Electric

The Original New Schneider Electric HMISTU855 is a 5.7-inch colour touch panel HMI from the Magelis Harmony STO & STU series, designed for compact machine and system control applications. Its 5.7" QVGA TFT colour touchscreen (320×240 pixels, 65,536 colours) delivers clear, high‑definition synoptic views for intuitive operator interaction. The ARM9 processor (333 MHz) with 16 MB application memory and 64 kB backup data ensures responsive performance. Communication is comprehensive: Ethernet TCP/IP (with Web Gate/email remote access), RS232C/RS485 serial via RJ45 (up to 115.2 kbit/s), and two USB ports (type A host + mini‑B device). The HMI mounts in a standard Ø22 mm pushbutton hole, eliminating the need for panel rectangular cut‑outs. It is configured using Vijeo Designer software and is part of Schneider Electric's Green Premium program, rated IP20/IP65 and NEMA 4X for harsh industrial environments.

Core Engineering Highlights:
5.7" QVGA TFT colour touchscreen (320×240 pixels, 65,536 colours) | ARM9 processor @ 333 MHz | 16 MB application memory / 64 kB backup data | Ethernet TCP/IP + RS232C/RS485 + 2 USB ports | Ø22 mm pushbutton mounting style (no panel cut‑out required) | IP65 front / IP20 rear (NEMA 4X front) | 24V DC (20.4‑28.8V) | 6.8 W power consumption | 50,000 h backlight lifespan | 0‑50°C operating temperature

Key Features:

• Original New Schneider Electric HMISTU855 panel

• 5.7" QVGA TFT colour touchscreen with 65,536 colours and 320×240 pixel resolution for clear, vibrant synoptic displays

• ARM9 processor (333 MHz) with 16 MB application memory and 64 kB backup data for responsive HMI performance

• Embedded Ethernet TCP/IP port supports Web Gate for remote access, diagnostics, and email notifications

• RS232C/RS485 serial communication via 8‑pin RJ45 connector (up to 115.2 kbit/s) for flexible connectivity to PLCs and serial devices

• Two USB ports: 1 type A host (memory stick/printer) and 1 mini‑B device (configuration download)

• Innovative Ø22 mm pushbutton mounting style eliminates the need for panel cut‑outs, simplifying installation

• IP65 front panel protection and NEMA 4X rating for dust‑tight and water‑resistant operation in harsh environments

• 50,000‑hour backlight lifespan and 16‑level brightness adjustment for long‑term visibility

• Real‑time clock via PLC access for time‑stamped event logging

• Supports Modbus TCP/IP and Uni‑TE protocols

• Configurable via free Vijeo Designer software

• Green Premium product with 802 kg CO₂e lifecycle carbon footprint

Applications:

• Compact machine HMI and operator control

• Handling systems and packaging machinery

• Food and beverage processing equipment

• Pharmaceutical industry equipment

• Simple to medium automation systems requiring an intuitive touch interface

• Industrial infrastructure monitoring and control

Technical Specifications:

System Compatibility:

• Schneider Electric Modicon M221, M241, M251, M340, M580 PLCs via Ethernet, Modbus TCP/IP, or Uni‑TE

• Vijeo Designer configuration software (version V5.1 SP2 or later)

• Third‑party controllers supporting Modbus protocol

• RS232C/RS485 serial devices via COM1 port

• USB memory sticks for configuration download and data logging

• Ethernet networks for remote access and diagnostics (Web Gate)

• Programming software: SoMachine Basic V1.6 or later

Related Products:

• HMISTU855W – Same unit without Schneider logo on overlay

• HMISTU855S – 5.7" touch panel with software included

• HMISTU655 – 3.5" version of STU touch panel (smaller display)

• HMIZS62 – Screen protection sheets for HMISTU 5.7"

• Vijeo Designer – Configuration software (free in demo mode)

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Schneider Electric, Magelis, Harmony, and EcoStruxure are trademarks of Schneider Electric SE.