Industrial Touch Screen HMI STO Harmony HMI STU Color High Definition
Price:
$400-$550
MOQ:
1
Delivery Time:
3-5Workday
Product Description
Harmony STO/STU HMI Color Compact High-definition Display Intuitive Operation
Harmony STO/STU HMI Color Compact High-definition Display
Harmony STO/STU Series is a compact color industrial HMI featuring a 4.3-inch high-definition touchscreen, compatible with EcoStruxure Operator Terminal Expert software for intuitive graphical operation. Equipped with RJ45, RS485/232, and mini USB ports, it seamlessly integrates and third-party automation products. With IP65F protection, 24VDC power supply, CE/UL/CSA certifications, and 0–50℃ wide-temperature tolerance, it's ideal for small-scale machinery in packaging, food & beverage, and HVAC industries.
Key Features
- Tool-Free Installation: Spring clip mounting, fast setup
- Multi-Protocol Connectivity: RJ45/RS485/232, cross-brand compatibility
- Industrial Durability: IP65F, 0–50°C, CE/UL/CSA certified
- Cost-Effective & Intuitive: EcoStruxure software, compact design
- Clear Visualization: 4.3" HD touchscreen, easy monitoring
Model Specifications
| Series | Model Number | Screen Size | Core Interfaces/Features | Main Applicable Scenarios |
|---|---|---|---|---|
| Harmony STO | HMISTO705 | 4.3 inches | RS232C interface, color touch screen | Small packaging machinery, simple equipment control |
| Harmony STO | HMISTO715 | 4.3 inches | Dual RS232C/485 serial ports, color touch screen | Food and beverage equipment, small machine tools |
| Harmony STO | HMISTO735 | 4.3 inches | Ethernet interface, color touch screen | Building automation, logistics conveyor lines |
| Harmony STU | HMISTU655 | 3.5 inches | Color touch screen, 22mm push button mounting | Small pump and valve control, simple mechanical operation |
| Harmony STU | HMISTU855 | 5.7 inches | Color touch screen, data export function | Water treatment equipment, automated production lines |
| Harmony STU | HMISTU855W | 5.7 inches | Color touch screen, no overlay marking | Customized equipment, special industrial scenarios |
| Supporting Modules | HMIS5T | - | Dedicated rear-mounted module for STU series | Interface expansion, function upgrade |
| Supporting Modules | HMIZSRTC1 | - | RTC battery pack (20 pieces/set) | Time data storage and backup |
| Supporting Modules | HMIZSADCO1 | - | Panel cutout adapter (20 pieces/set) | Adapting to different installation size requirements |
Application Scenarios
- Packaging machinery control & monitoring
- Food & beverage production line equipment
- HVAC system operation terminals
- Textile machinery parameter adjustment
- Small-scale automated OEM equipment
Frequently Asked Questions
Q1: Screen is black and no power on?
Check 24VDC power connection first, replace damaged adapter if voltage is abnormal; re-download the program if power is normal but still black.
Q2: No communication with PLC, data not updated?
Verify cable connection (RJ45/RS485) and port indicator; match HMI & PLC protocol, baud rate and address in software; replace faulty communication cable/port.
Q3: Touch screen unresponsive or slow?
Run HMI self-test first, recalibrate touch screen if test fails; optimize communication speed or split program variables if response is slow.
Q4: Screen displays garbled code?
Adjust HMI data range if over-limit; use shielded cable and single-end grounding to avoid EMI; match data format with PLC.
Q5: HMI freezes or restarts frequently?
Check if working temp exceeds 0–50℃, keep away from heat source; close redundant background programs; replace unstable power supply if voltage fluctuates.
Q6: Installation fails with loose fixation?
Use the original spring clip for tool-free mounting, ensure the panel is tightly fixed on the OEM equipment cabinet.
Q7: USB/RJ45 port not working?
Check if the port is physically damaged; replace the peripheral device for testing; re-set the port parameter in the software.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanghai Fradwell Industrial Automation Co., Ltd.
Location
No. 168, Chengnan Road, Pudong New Area, 201399 Shanghai, China
Contact Person
Angelo Wu