Description
UNIOP ETT-VGA-0045 HMI | 10.4-Inch VGA Touchscreen
Product Introduction
The UNIOP ETT-VGA-0045 is a legacy industrial operator interface built around a relatively large-for-its-era 10.4-inch TFT touchscreen. Its 640 × 480 VGA graphics, membrane keypad, configurable serial PLC interfaces, alarm/event handling, recipe memory, and fieldbus expansion capability were intended for machine and process-control applications where the operator needed more than a simple text display.
The model-specific Exor technical note is particularly useful because it removes ambiguity from several online listings. ETT-VGA-0045 is explicitly specified as the 10.4-inch TFT color graphic, 640 × 480, touchscreen, 11-key keypad, 32 MB user-memory version with PLC, PC/Printer, and AUX ports.
That distinction matters when sourcing old UniOP hardware. Several current reseller pages contain incorrect descriptions of this part number—including claims that it is a video distribution amplifier or industrial controller. Those descriptions conflict directly with the original UniOP technical documentation and should not be used for procurement.
ETT-VGA-0045
Key Technical Specifications
- Manufacturer: UNIOP / Exor International
- Model: ETT-VGA-0045
- Series: UniOP ETT-VGA
- Product Type: Operator Interface / HMI
- Display: Color TFT LCD
- Display Size: 10.4 inches
- Display Area: Approximately 212 × 159 mm
- Graphics Resolution: 640 × 480 pixels
- Color Depth: 256 colors
- Backlight: CCFL
- Touchscreen: Resistive
- Function Keys: 8 base function keys
- System Keys: 3
- Ordering Variant Keypad: 11-key configuration
- User LEDs: 8
- System LEDs: 6
- User Memory: 32 MB for ETT-VGA-0045
- Protocol-Reserved Memory: 64 KB in the ETT-VGA platform documentation
- Recipe Memory: 16 KB
- Alarms: Up to 1,024
- Event List: Up to 256
- PLC Port: RS-232 / RS-422 / RS-485 / CL 20 mA
- PC/Printer Port: Supported
- AUX Port: Supported, with optional fieldbus modules
- External Keyboard Port: Supported
- Programming Speed: 9,600–38,400 bps
- UniNet: Client/Server network capability
- Hardware RTC: Yes
- Battery: Yes
- Screen Saver: Yes
- Buzzer: No
- Fuse: 2 A, user-replaceable
- Supply Voltage: 18–30 VDC
- Maximum Consumption: Approximately 700 mA at 24 VDC
- Maximum Panel Thickness: 5 mm
- Weight: Approximately 2.7 kg
- Operating Temperature: 0 to +50°C
- Storage Temperature: -20 to +70°C
- Humidity: 5–95% RH, non-condensing
- Front Protection: IP65
- Front Dimensions: 311 × 220 mm
- Panel Cutout: 292 × 202 mm
- Mounting: Panel installation
- Application: Industrial machine and process operator interface.
Application Scenarios & Maintenance Pain Points
Legacy Machine HMI Replacement
The ETT-VGA-0045 is particularly relevant when an older machine’s PLC remains operational but the operator terminal develops a failing touchscreen, aging CCFL backlight, damaged keypad, or communication fault.
Replacing the HMI can preserve the existing control architecture instead of forcing an unnecessary PLC modernization project.
PLC Operator Station
The panel provides dedicated PLC communication through RS-232, RS-422, RS-485, and CL 20 mA interfaces. Which interface is actually used depends on the original machine design and UniOP project configuration.
Process Visualization
The 640 × 480 VGA display supports graphical process screens, alarm information, recipes, variables, and operator controls. The platform documentation specifies up to 1,024 alarms and 256 event-list entries.
Fieldbus-Connected Automation
The AUX port can accommodate optional communication modules, giving the ETT-VGA platform a route into different industrial communication architectures without changing the basic operator-panel hardware.
Legacy Spare Inventory
For an installed base containing ETT-VGA panels, an unused or tested can be a valuable maintenance spare. The important inventory information should include the complete part number, hardware revision, installed communication interface, project backup, and physical condition.
QA & Live Testing SOP
We treat the as a complete industrial operator interface—not merely a replacement LCD.
Step 1 — Physical identification
- Confirm the rear label identifies .
- Record serial number and hardware information.
- Check the front bezel and gasket.
- Inspect the touchscreen for cracks, delamination, or excessive wear.
- Inspect all communication connectors.
- Check keypad and mounting hardware.
Step 2 — Electrical inspection
Before power-up, inspect the DC input circuit, fuse, connectors, and visible PCB areas for corrosion, overheating, contamination, or mechanical damage.
The documented supply range is 18–30 VDC, with approximately 700 mA maximum consumption at 24 VDC.
Step 3 — Controlled power test
Use a current-limited DC supply.
Verify:
- Normal boot sequence
- Stable operating current
- TFT backlight operation
- No repeated resets
- No abnormal heating
- No visible display distortion
Step 4 — Touchscreen test
Test the complete resistive touchscreen area.
Pay particular attention to corners and frequently used screen regions. Aged resistive panels can develop localized response problems that are not obvious from a basic startup test.
Step 5 — Keypad test
Check all 11 operator keys associated with the configuration, including the system-key functions. The original ordering information specifically identifies the 11-key keypad configuration.
Step 6 — Communication test
Where the correct test equipment is available, verify the applicable serial interface.
Do not assume that an RS-485 electrical test proves PLC compatibility. The correct UniOP communication driver, addressing, baud rate, and project configuration must also be confirmed.
Step 7 — Final packaging
Protect the glass/touch surface from pressure and impact. Use ESD-conscious packaging for the electronics and secure the unit so the keypad and connectors cannot be damaged during transport.
Field Engineer’s Pitfall Guide
❗ Do not confuse with a generic VGA module.
The original UniOP documentation explicitly identifies it as a 10.4-inch TFT color graphic operator interface with touchscreen and keypad.
❗ Do not trust the “video distribution amplifier” listings.
Some current reseller pages incorrectly describe as a VGA distribution amplifier with four outputs and modern high-resolution video specifications. Those specifications conflict with the original UniOP documentation.
❗ Verify the panel cutout before scheduling replacement.
The documented front size is 311 × 220 mm, while the cabinet cutout is approximately 292 × 202 mm. A mechanically similar modern HMI is not necessarily a drop-in replacement.
❗ Check the existing project before changing hardware.
The is a legacy platform. Preserve the existing UniOP project and communication settings before removing the original panel.
❗ Do not assume every ETT-VGA has identical memory configuration.
The general ETT-VGA technical data references 8 MB user memory, while the specific ordering information identifies 32 MB user memory. For this reason, the exact ordering code should take precedence over generic family descriptions.
Intent-Driven FAQ
What is UNIOP ?
The is a legacy industrial HMI/operator interface with a 10.4-inch color TFT display, 640 × 480 resolution, resistive touchscreen, and keypad.
What size screen does have?
It uses a 10.4-inch TFT display with 640 × 480 VGA resolution and 256-color graphics.
What voltage does use?
The documented ETT-VGA platform operates from 18–30 VDC, with approximately 700 mA maximum consumption at 24 VDC.
Does have a touchscreen?
Yes. The ETT-VGA documentation specifies a resistive touchscreen.
What communication interfaces are available?
The documented PLC interface supports RS-232, RS-422, RS-485, and CL 20 mA. The unit also has PC/Printer and AUX ports, with optional fieldbus modules for the AUX interface.
How much memory does have?
The specific ordering information for states 32 MB user memory. This should not be confused with the 8 MB figure appearing in the general ETT-VGA technical-data section.
Is discontinued?
Current industrial repair and spare-parts sources classify the model as discontinued by the manufacturer, while identifying it as a UniOP/Exor operator interface.
What should I verify before buying a replacement?
Confirm the complete marking, hardware revision, display/touch condition, keypad configuration, communication interface, panel cutout, and the existing UniOP project. For a used or surplus unit, a power-on and touchscreen test is strongly preferable to relying on cosmetic condition.
Procurement Note
The technically defensible procurement description is:
UNIOP — 10.4-inch TFT color graphic industrial HMI, 640 × 480 resolution, resistive touchscreen, 11-key keypad, 32 MB user memory, 18–30 VDC, PLC/PC-Printer/AUX ports.
The original Exor/UniOP technical note is the key reference for this exact ordering code. It clearly distinguishes from unrelated modern VGA hardware and confirms the 10.4-inch, 640 × 480 operator-interface configuration.
For legacy replacement work, match the complete ordering code and physical configuration rather than purchasing by “ETT-VGA” family name alone.
