Description
Product Introduction
The UNIOP ETT-VGA-0045 is an industrial human-machine interface (HMI) from the UniOP product family developed by Exor International. It combines a 10.4-inch TFT color display, resistive touchscreen functionality, and an 11-key keypad in a panel-mounted operator interface designed for industrial control applications. The original technical documentation specifies 640×480 graphics, 32 MB of user memory, and dedicated PLC, PC/Printer, and auxiliary ports.
The ETT-VGA-0045 is intended to provide the operator-facing layer of an automation system rather than perform PLC control itself. It can display process values, alarms, machine status, recipes, and operator commands while communicating with a connected PLC or control system through the supported interfaces. The original technical note specifies 18–30 VDC power, approximately 700 mA maximum consumption at 24 VDC, and an operating range of 0 to 50 °C.
The model is now legacy hardware, so replacement work requires more than matching the display size. The communication protocol, UniOP project/application, firmware, connector arrangement, panel cutout, and touch-screen calibration all need to be considered.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | UniOP / Exor International |
| Model | ETT-VGA-0045 |
| Product Type | Industrial HMI / Operator Interface |
| Display | 10.4-inch TFT color |
| Resolution | 640 × 480 pixels |
| Display Colors | 256 colors |
| Touchscreen | Yes |
| Keypad | 11 keys |
| Function Keys | 8 |
| System Keys | 3 |
| User Memory | 32 MB |
| PLC Port | RS-232 / RS-422 / RS-485, depending on configuration |
| PC/Printer Port | Yes |
| Auxiliary Port | Yes |
| Power Supply | 18–30 VDC |
| Maximum Consumption | Approx. 700 mA at 24 VDC |
| 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 |
| Weight | Approx. 2.7 kg |
| Fuse | 2 A, user replaceable |
The electrical, mechanical, display, and environmental specifications above come from the original UniOP ETT-VGA technical note.
Main Features and Engineering Considerations
10.4-Inch Operator Display
The ETT-VGA-0045 uses a 10.4-inch TFT color display with 640×480 graphics resolution. The relatively large panel was intended for applications where operators need to view process information, alarm lists, trends, status screens, and machine-control graphics from a reasonable distance.
Touchscreen and Keypad
The unit combines touchscreen operation with 11 physical keys, including eight function keys and three system keys. This hybrid interface is useful in industrial applications where operators may prefer dedicated keys for frequently used functions while using the touchscreen for navigation and data entry.
ETT-VGA-0045
PLC Communication
The original specification identifies PLC communication interfaces including RS-232, RS-422, RS-485, with an optional auxiliary fieldbus connection. The exact communication capability depends on the installed configuration and project.
This is one of the areas that should be checked carefully when replacing an existing panel. Having the same ETT-VGA-0045 model number does not automatically guarantee that the loaded application, communication driver, and connected PLC configuration are identical.
Industrial Panel Construction
The front panel is specified at IP65, while the unit operates from 18–30 VDC and is rated for 0 to 50 °C operation. The 292 × 202 mm panel cutout is particularly important when replacing the HMI, because a physically different replacement may require cabinet modification.
Application Scenarios
The UNIOP ETT-VGA-0045 is suitable for legacy applications such as:
- Machine operator panels
- PLC-based machine control
- Process monitoring
- Production-line HMI
- Packaging machinery
- Industrial equipment
- Manufacturing automation
- Alarm and status visualization
- Recipe and parameter entry
- Legacy UniOP control systems
The model is specifically categorized in current repair/supply databases as a UniOP operator interface, rather than a standalone PLC controller.
Engineer’s Guide: Field Pitfalls
⚠️ Do not confuse with a VGA distribution amplifier.
Some secondary listings incorrectly describe the model as a video distribution device. The original UniOP documentation clearly identifies as a 10.4-inch TFT touchscreen operator interface.
⚠️ Verify the project and firmware.
The physical HMI is only one part of the system. The correct UniOP application and communication driver must be available if the panel is being replaced.
⚠️ Check the PLC communication port.
RS-232, RS-422, and RS-485 wiring are not interchangeable. Confirm the existing cable and PLC communication configuration before commissioning.
⚠️ Check the panel cutout.
The specified cutout is 292 × 202 mm. A replacement with a different mechanical footprint may require cabinet modification.
⚠️ Test the touchscreen.
Older resistive touch panels can develop dead zones, drift, or calibration problems. Test the complete screen surface rather than checking only the display.
⚠️ Inspect the CCFL backlight.
The original ETT-VGA documentation specifies a CCFL backlight. Aging backlights can produce dim or uneven illumination even when the HMI electronics remain functional.
Frequently Asked Questions
It is a 10.4-inch industrial HMI/operator interface from the UniOP/Exor family.
What is the display resolution?
640 × 480 pixels.
Does it have a touchscreen?
Yes. The original documentation specifies a touchscreen together with an 11-key keypad.
What is the power supply?
The specified input is 18–30 VDC.
How much memory does it have?
The ordering specification lists 32 MB of user memory.
What is the operating temperature?
The documented operating range is 0 to +50 °C.
What is the panel cutout?
292 × 202 mm. The front dimensions are 311 × 220 mm.
What should be verified before purchasing a replacement?
- Display and touchscreen condition
- 640×480 display operation
- Touchscreen calibration
- PLC communication interface
- Existing PLC protocol/driver
- UniOP project/application
- Firmware version
- 18–30 VDC supply
- Panel cutout and mounting hardware
- Backlight condition
- Functional test with the original PLC
Procurement note: For this legacy HMI, I would prioritize a complete functional test with the customer’s actual PLC/application over a simple display test. A replacement screen that powers up but cannot load or communicate with the original UniOP project is not a practical field replacement.
