Key Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ETT-VGA-0045 |
| Brand | UniOP / EXOR International |
| Display Size | 10.4 inch |
| Display Type | TFT LCD |
| Resolution | 640 × 480 (VGA) |
| Touch Type | Resistive touchscreen |
| Colors | 256 colors |
| User Memory | 32 MB |
| LEDs | 8 user LEDs |
| Front Protection | IP65 |
| Operating Temperature | -20 °C to +60 °C |
| Storage Temperature | -40 °C to +80 °C |
| Interfaces | PLC port, PC/printer port, auxiliary port; VGA-family HMI |
| Typical Use | Machine HMI, PLC operator panel, process monitoring |
Product Introduction
The UNIOP ETT-VGA-0045 is one of those old-school EXOR/UniOP HMIs that shows up on packaging lines, textile machines, wood-processing equipment, and exported OEM skids. It is not a fancy IIoT gateway. It is a 10.4-inch resistive-touch operator panel with VGA-class graphics, function keys, and just enough memory to keep a machine running without constant reboots.Engineers keep these in service because they are predictable. You load the project, wire the serial or PLC port, and it sits there for years. The 640×480 resolution looks dated now, but on a control panel it is perfectly readable. The resistive screen survives gloves, grease, and impatient operators better than many capacitive replacements. This specific generation is picky about correct communication settings and project versioning, but when matched properly, it is dependable.
Quality SOP & Tech Pitfalls
The Lab Report (SOP)
- Visual and counterfeit check: verify UniOP/EXOR labeling, model ETT-VGA-0045, serial number, and revision.
- Power and boot test: apply rated DC supply on a bench rig and confirm normal startup.
- Display check: verify backlight uniformity, dead pixels, and VGA-class screen rendering.
- Touch calibration test: exercise corners and center; confirm stable response.
- Port verification: check PLC/PC/auxiliary ports for physical damage and basic communication readiness.
- Insulation and supply check: confirm no shorted inputs and stable 24 V DC range behavior where applicable.
- Firmware/project note: record any visible firmware or project runtime info; do not overwrite customer projects.
- Anti-static packing: seal with foam, protect the screen, and label revision clearly.
The Engineer’s Warning (Pitfalls)
- Do not assume any ETT-VGA unit is interchangeable. UniOP projects are tied to the exact model family, resolution, and runtime. Loading an eTOP or MKDT-VGA project onto an ETT-VGA-0045 will fail.
- The resistive touch layer ages. A unit can boot fine but have dead zones near the edges. Test touch before shipping.
- I once saw a plant swap an ETT-VGA panel without copying the communication parameters. The screen came up, the PLC never responded, and the operator assumed the PLC was dead. It was just a baud rate and driver mismatch. Thirty minutes of downtime for a five-minute photo.
Installation & Configuration Guide
- Pre-Installation ⚠️
- Shut down control power and verify zero energy.
- Photograph the existing wiring, DIP/switch settings, serial pinout, and communication parameters.
- Back up the HMI project from the old panel if possible.
- Removal
- Label every cable before disconnecting.
- Release the panel mounting clamps carefully.
- Inspect the cutout and gasket; a damaged seal kills IP65 protection.
- Installation
- Copy all communication settings exactly: PLC type, port, baud rate, station address, and driver selection. This prevents most startup failures.
- Seat the panel firmly and reinstall mounting clamps evenly.
- Reconnect PLC, PC, and auxiliary ports according to the original wiring.
- Power-On & Testing
- Apply rated DC power and watch the boot sequence.
- Verify screen brightness, touch response, and alarm display.
- Test communication with the PLC under supervision.
- Confirm that acknowledged alarms, setpoint writes, and navigation buttons behave as expected.
Compatible Replacement Models
| Compatibility Tier | Model | Notes |
|---|---|---|
| ✅ Drop-in Replacement | UNIOP ETT-VGA (same revision) | Best option if project file and communication settings are unchanged. |
| ⚠️ Software Compatible | EXOR eTOP / eSMART series | May require project migration in JMobile/UniOP engineering software and communication revalidation. |
| ❌ Hardware Mod Required | Modern Ethernet-only HMI with different cutout | Requires new cutout, wiring changes, and full project rewrite. Avoid unless upgrading the entire machine. |
Frequently Asked Questions (FAQ)
Can I hot-swap the ETT-VGA-0045?
Not recommended. Power down the panel and isolate control circuits before removal. The PLC side may stay live, but you do not want to risk shorts on the serial or auxiliary ports.Is the ETT-VGA-0045 still in production?
No. The UniOP HMI line has been succeeded by EXOR eTOP, eSMART, and eX products. Remaining stock is typically surplus, removed-from-service, or new-old-stock.Can I replace it with any UniOP VGA panel?
Not automatically. ETT-VGA-0045 belongs to the ETT-VGA family. Substitutes must match resolution, touch type, memory, and project compatibility. Otherwise the project will not load or communicate.Does it support Ethernet?
Do not assume it does. The ETT-VGA-0045 is a legacy VGA-series HMI with PLC, PC/printer, and auxiliary ports. Ethernet capability depends on the exact revision and hardware configuration. Verify on the nameplate.What if the touch screen is unresponsive in one corner?
That is usually a worn resistive layer, not a software issue. Recalibration may help temporarily, but replacement is the real fix.Can you load a new project for me?
Project migration requires the original engineering software and a valid project file. Without those, the safest move is a like-for-like replacement and a communication parameter check.What should I send for verification?
Photos of the nameplate, rear connector labels, communication settings, and the existing project runtime screen. That cuts misidentification risk dramatically.
