5.7" Color Touch Panel HMI STU855
1. Display Specifications
Parameter Specification Notes
Display Size 5.7 inches Diagonal measurement
Display Type TFT LCD Thin Film Transistor
Display Colors 65,536 colors High color resolution
Resolution 320 × 240 pixels QVGA (Quarter Video Graphics Array)
Backlight Type White LED Long-life LED backlight
Backlight Lifetime 50,000 hours Typical lifespan
Brightness 16 adjustable levels
Touch Technology Analog Resistive Durable, suitable for gloved operation
2. Processor & Memory
Parameter Specification Notes
CPU RISC ARM9 333 MHz
Application Memory 16 MB Flash EPROM for user application storage
Data Backup Memory 64 kB to 128 kB For data retention
Real-Time Clock (RTC) Built-in Battery-less, accessible from PLC
3. Communication Interfaces
Interface Type Notes
Serial Port (COM1) RJ45, RS-232C / RS-485 Transmission rate up to 115.2 kbit/s
Ethernet TCP/IP (10/100 Mbps) Embedded for remote monitoring and connectivity
USB Host USB 2.0 Type A For connecting USB flash drives, keyboards, printers
USB Device USB 2.0 Mini-B For program download from PC
Supported Protocols Modbus, Modbus TCP/IP, Uni-TE, Third-party protocols
4. Electrical Specifications
Parameter Specification Notes
Rated Supply Voltage 24 V DC
Supply Voltage Limits 20.4 V DC to 28.8 V DC
Power Consumption 6.8 W Typical
Inrush Current ≤ 30 A
5. Physical Specifications
Parameter Specification Notes
Dimensions (W × H × D) 129.15 × 163 × 56.5 mm
Fixing Mode Ø 22 mm hole Standard 22mm push-button style mounting
Enclosure Material PC/PBT and PAA
Weight Not specified Typically < 1 kg
Cooling Method Natural convection Fanless operation
6. Environmental Specifications
Parameter Specification Notes
Front Panel Protection IP65 / NEMA 4X Dust-tight and protected against water jets
Rear Panel Protection IP20 Protection against solid objects >12.5mm
Operating Temperature 0°C to +50°C
Storage Temperature Not specified Typically -20°C to +60°C
Operating Humidity Not specified Typical: 10% to 90% RH non-condensing
Hazardous Locations ATEX, UL Class 1 Div 2 T4A/T5 Suitable for certain hazardous environments
7. Certifications & Standards
Certification Details Notes
CE Yes European Conformity
UL cULus, UL 508, UL 1604
FCC Class A
RoHS Compliant
Green Premium Yes Schneider's eco-label for sustainable products
8. Software & Programming
Parameter Specification Notes
Configuration Software Vijeo Designer Same platform as high-end XBTGT series
Languages Supported ASCII, Chinese (simplified), Japanese (ANK/Kanji), Korean, Taiwanese (traditional Chinese)
Number of Pages Limited by internal memory capacity
