Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | ETT-VGA |
| Specific Ordering Model | ETT-VGA-0045 |
| Manufacturer | UniOP / Exor International |
| Product Type | Industrial HMI / Operator Interface |
| Display | 10.4-inch TFT color LCD |
| Resolution | 640 × 480 pixels |
| Touchscreen | Yes |
| Function Keys | 8 configurable keys |
| User LEDs | 8 |
| PLC Interface | RS-232, RS-422, RS-485, CL 20 mA |
| PC/Printer Port | Yes |
| Auxiliary Port | Yes, optional fieldbus connection |
| Supply Voltage | 18–30 VDC |
| Typical Consumption | Approx. 700 mA at 24 VDC |
| Front Protection | IP65 |
| Operating Temperature | 0 to +50°C |
| Storage Temperature | -20 to +70°C |
| Front Dimensions | 311 × 220 mm |
| Panel Cutout | 292 × 202 mm |
| Panel Thickness | Up to 5 mm |
| Weight | Approx. 2.7 kg |
The original UniOP technical note identifies ETT-VGA-0045 as a 10.4-inch TFT color graphic terminal with 640×480 resolution, touchscreen, 11-key keypad, 32 MB user memory, and PLC/PC-Printer/Auxiliary ports.
Product Introduction
The UniOP ETT-VGA is a legacy industrial human-machine interface designed for operator interaction with PLC-based automation equipment. Its 10.4-inch TFT display provides 640×480-pixel graphical pages, while the touchscreen, configurable function keys, and user LEDs allow operators to monitor process variables, enter commands, acknowledge alarms, and navigate machine-control screens. The original technical documentation also specifies PLC communication through RS-232, RS-422, RS-485, and current-loop interfaces.
For maintenance teams, the important issue is that this is an older UniOP HMI architecture, not a modern Ethernet-native panel. The ETT-VGA has a 18–30 VDC supply requirement, IP65 front protection, and a 0–50°C operating range. Its original programming environment and communication interface should therefore be checked before replacing it with a newer UniOP/Exor panel.
ETT-VGA
Application Scenarios & Field Pitfalls
Engineering Pain Point
The ETT-VGA is often described simply as a “VGA touchscreen,” but that misses its primary role. It is an operator interface terminal with its own PLC communication architecture, display memory, alarm handling, password protection, and application software.
The original documentation states that UniOP can handle up to 1,024 alarms, retain the last 256 alarm events, provide eight levels of password protection, and use UniOP Designer software for application development.
Typical Applications
- Machine-tool operator panels — machine status, parameter entry, alarms, and manual controls.
- Packaging machinery — production-state monitoring, recipe/operator interaction, and fault display.
- Process equipment — PLC variable visualization, alarm handling, and operator commands.
- Legacy production lines — replacement of aging UniOP terminals without immediately redesigning the PLC application.
Technical Pitfalls to Avoid
- Do not treat ETT-VGA as a simple VGA monitor. The PLC port and UniOP application environment are central to its operation.
- Check the exact ordering suffix. The technical note identifies ETT-VGA-0045 as the specific 10.4-inch TFT configuration. Generic “ETT-VGA” listings can mix specifications from different UniOP products.
- Verify the PLC communication interface before replacement. The legacy terminal supports several serial/current-loop interfaces, while modern HMI replacements may be Ethernet-focused.
- Check the panel cutout before assuming mechanical compatibility. The documented front dimensions are 311 × 220 mm with a 292 × 202 mm cutout.
- Do not rely on modern touchscreen claims. The original ETT-VGA documentation describes an analog touchscreen; current listings sometimes incorrectly advertise capacitive or multi-touch capability.
Related Products
- ETT-VGA-0045 — Specific ETT-VGA ordering configuration; 10.4-inch TFT, 640×480, touchscreen and keypad.
- UniOP ECT-VGA — Related VGA operator-interface family with a different display/interface configuration.
- UniOP Panel 800 Series — Later UniOP operator-panel family suitable for modernization projects.
- UniOP ETT Series — Broader legacy HMI family from which ETT-VGA originates.
- Exor UniOP HMIs — Successor product family to consider when migrating an obsolete ETT-VGA installation.
- UniOP Designer — Original engineering environment associated with configuring UniOP operator interfaces; existing project files should be preserved before attempting modernization.
Procurement Check
For an ETT-VGA replacement, I would verify the front-panel label, exact suffix, display size, PLC communication interface, application/project backup, and panel cutout before purchasing.
The most defensible identification is UniOP ETT-VGA-0045, 10.4-inch TFT, 640×480, touchscreen, 18–30 VDC. The original Exor/UniOP technical note is considerably more reliable than current reseller pages, several of which mix ETT-VGA specifications with unrelated HMI or video-interface products.
