UniOP ETOP308-U301 HMI Touch Panel | Replacement, Equivalent & Selection Guide
The UniOP ETOP308-U301 is a compact, high-performance Human Machine Interface (HMI) panel designed for industrial automation and process control applications. This page provides a comprehensive selection guide, compatible replacement models, and technical specifications to help engineers and procurement teams make informed sourcing decisions.
Technical Specifications
- Part Number / SKU: ETOP308-U301
- Brand: UniOP (Gefran Group)
- Series: ETOP300 Series
- Display Type: TFT Color Touch Screen
- Display Size: 5.7″ (approx.)
- Resolution: 320 × 240 (QVGA)
- Communication Ports: RS-232, RS-485, USB
- Operating Voltage: 24 VDC
- Operating Temperature: 0°C to +50°C
- Protection Rating: IP65 (front panel)
- Memory: Built-in Flash / RAM
- Programming Software: eSigner / Designer
- Mounting: Panel mount (cutout required)
- Certifications: CE, UL (verify with datasheet)
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as direct or functional replacements for the UniOP ETOP308-U301. Always verify communication protocol and I/O compatibility before substitution:
- UniOP ETOP308-0045 — Same series, different firmware variant; verify software compatibility
- UniOP ETOP307-U301 — Smaller display variant; check cutout dimensions
- UniOP ETOP310-U301 — Larger display upgrade option
- Weintek MT6070iH — 7″ equivalent; RS-232/RS-485 compatible; widely used as cross-brand replacement
- Siemens SIMATIC HMI KTP600 — Functional equivalent for Siemens PLC environments
- Schneider Electric HMIGTO2310 — Alternative for Modbus-based systems
- Proface GP2301-LG41-24V — Legacy cross-reference for older installations
Note: Cross-brand replacements may require driver reconfiguration and software reprogramming. Contact our technical team for compatibility verification.
Why Choose the Original Model
- ✅ Drop-in compatibility — No panel cutout modification required when replacing like-for-like
- ✅ Proven reliability — Designed and tested for continuous industrial duty cycles
- ✅ Native protocol support — Direct communication with UniOP-compatible PLCs without gateway adapters
- ✅ Existing project files — Reuse eSigner/Designer project files without reprogramming
- ✅ Regulatory compliance — Maintains CE/UL certification status of the original installation
Typical Applications
- Machine tool control panels and CNC operator interfaces
- Packaging and labeling line HMI stations
- Water treatment and HVAC monitoring systems
- Food & beverage processing equipment
- Conveyor and material handling control
- Energy management and power distribution panels
System Compatibility
The ETOP308-U301 supports communication with a wide range of PLC brands via built-in drivers:
- UniOP / Gefran — Native protocol
- Siemens S7-200 / S7-300 — Via MPI/PPI adapter
- Mitsubishi FX / Q Series — RS-422/RS-485
- Omron C/CJ/CS Series — Host Link / Toolbus
- Modbus RTU/ASCII — Universal serial protocol
- Allen-Bradley (Rockwell) — DF1 / DH-485 (verify driver version)
Selection Guide
Use the following criteria to confirm the ETOP308-U301 is the right choice for your application:
- Display size requirement: 5.7″ color touch — if larger display needed, consider ETOP310 series
- PLC brand: Confirm driver availability in eSigner software for your PLC model
- Communication interface: RS-232 or RS-485 — confirm port type matches your PLC
- Environment: IP65 front panel — suitable for wash-down or dusty environments
- Power supply: 24 VDC — ensure stable regulated supply available at panel
- Replacement scenario: If replacing a failed unit, match the exact part number to avoid reprogramming
Quality Assurance & Sourcing
- 🔍 Authenticity verified — All units sourced from authorized distributors or OEM-certified supply chains
- 📦 Inspection before shipment — Each unit undergoes functional power-on testing
- 🏭 Origin: Manufactured by UniOP / Gefran Group (Italy)
- 📋 Documentation available — Datasheet, wiring diagram, and software download links provided upon request
- 🔄 Warranty: 12-month warranty against manufacturing defects
How to Order
- Confirm part number: ETOP308-U301
- Specify quantity and required delivery timeline
- Contact us via email or phone for bulk pricing and lead time
- Receive proforma invoice and arrange payment
- Unit ships with tracking within 1–3 business days of payment confirmation
📧 Email: [email protected]
📞 Phone/WhatsApp: +0086 19859288691
Replacement & Compatibility FAQ
Q: Can I use the ETOP308-U301 to replace an older ETOP308-0045?
A: In most cases yes, but verify firmware version compatibility in eSigner software before deployment.
Q: Does this HMI work with Siemens S7-1200?
A: The ETOP308-U301 supports S7-200/300 natively. S7-1200 compatibility depends on driver version — contact us to confirm.
Q: Is the panel cutout the same as the ETOP307 series?
A: No — the ETOP307 and ETOP308 have different cutout dimensions. Always refer to the installation datasheet.
Q: Can you supply a tested used/refurbished unit?
A: Yes, we offer both new and professionally refurbished units. Please specify your preference when inquiring.
Q: What programming software is required?
A: UniOP eSigner or Designer software. Free download available — contact us for the correct version for your unit.
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