Description
📌 Product Overview
The ESA VT190WA0000 is a VT190 series text HMI operator panel designed for industrial machine control and process monitoring applications. It provides a compact operator interface for displaying process information, alarms, messages and data while allowing operators to send commands to the connected control system.
The VT190W family uses an LCD text display with a dedicated operator keyboard. Available documentation identifies the VT190W A0000 configuration with MSP and ASP serial interfaces, 256 KB project memory and 105 KB recipe memory.
The exact VT190WA0000 model is also identified in equipment databases as an ESA VT 190 operator panel with LCD display and 24 VDC supply.

🔧 Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | ESA |
| Model | VT190WA0000 |
| Product Type | Text HMI / Operator Panel |
| Product Family | VT190 / VT190W |
| Display Type | LCD Text Display |
| Text Format | 40 × 4 characters |
| Keypad | Integrated operator keyboard |
| Project Memory | 256 KB |
| Recipe Memory | 105 KB |
| Communication | MSP / ASP serial interfaces |
| Power Supply | 24 VDC class; verify nameplate before installation |
| Application | Industrial machine and process operator interface |
| Status | Legacy / discontinued model |
| Condition | Used — verify condition of the actual unit |
The VT190 family documentation lists the VT190W with an LCD 40 × 4-character display and 49-key operator keyboard. The VT190W A0000 configuration is listed with MSP and ASP interfaces, 256 KB project memory and 105 KB recipe memory.
⚙️ Key Features
- Text-based HMI for machine and process operation
- LCD display for process values, messages and alarms
- Integrated operator keyboard
- 40 × 4-character text display format
- MSP and ASP serial communication interfaces
- Project memory for storing the HMI application
- Recipe memory for production or process data
- Designed for connection to PLC and industrial control systems
- Compact operator-terminal architecture for legacy automation equipment
The VT190 is described as an advanced text operator panel rather than a conventional PC-based HMI. Its purpose is to provide the operator with process information and command functions through a dedicated terminal connected to the control system.
🏭 Typical Applications
Machine Control
Used as a local operator station for machinery where operators need to view operating parameters, alarms and machine status.
Process Monitoring
The text display can present process values, status messages and alarm information from the connected controller.
Production Equipment
Recipe memory can be useful where different production parameters or operating configurations need to be stored and recalled.
Legacy Automation Systems
The VT190W series can be particularly useful when maintaining older industrial equipment and replacing an original operator terminal without redesigning the entire control system.
🔌 Installation & Configuration Notes
Before installation, confirm the exact model number on the rear label. VT190W variants such as VT190W A0000 and VT190W AP000 have different interface configurations, so the suffix should not be ignored. The AP000 version is documented with an additional LPT interface, while the A0000 version is listed with MSP and ASP interfaces.
Check the actual unit’s power requirements before connecting it to a control cabinet. Some third-party references identify the VT190WA0000 as a 24 VDC operator panel, while another listing for the same part number describes a 90–264 VAC HMI. Because these sources conflict, the safest approach is to verify the voltage shown on the physical nameplate of the unit being supplied rather than assuming the voltage from a generic listing.
For a replacement installation, also verify:
- Existing communication cable and connector type
- PLC/controller protocol
- HMI project compatibility
- Firmware/software version
- Keyboard and display condition
- Recipe/project memory retention
- Power-supply voltage
- Rear terminal configuration
🛠️ Maintenance & Inspection
For a used VT190WA0000, inspection should focus on the LCD, keyboard and communication interfaces.
Visual Inspection
- Check LCD for cracks, dark areas or missing characters.
- Inspect the keyboard membrane for damaged or stuck keys.
- Check rear connectors for bent or corroded contacts.
- Inspect the enclosure for cracks or mounting damage.
Power-Up Test
- Apply the verified supply voltage.
- Confirm normal startup.
- Check LCD contrast and character visibility.
- Test representative keyboard functions.
Communication Test
- Connect to the intended PLC or controller.
- Verify the configured serial communication channel.
- Confirm that process values, commands and alarms are exchanged correctly.
The display contrast on the VT190 can be adjusted using the trimmer located on the rear of the unit. The VT190 also provides termination resistance for its serial line, selectable through an internal jumper.
❓ Frequently Asked Questions
Q: Is the ESA VT190WA0000 a touchscreen HMI?
A: No. It is primarily a text-based operator terminal with an LCD and physical operator keys.
Q: What is the display format?
A: The VT190W documentation identifies the display as LCD with a 40 × 4-character text format.
Q: What communication interfaces does it use?
A: The VT190W A0000 configuration is documented with MSP and ASP serial interfaces. Exact connectors should be checked on the physical unit.
Q: Can it replace another VT190W directly?
A: Not automatically. Different VT190W suffixes can have different interface configurations. Always compare the complete part number and rear-panel connections.
Q: Is VT190WA0000 still a current model?
A: Public industrial parts databases identify the model as discontinued/legacy.
Q: Is the unit 24 VDC or 90–264 VAC?
A: Public sources conflict. Some identify VT190WA0000 as a 24 VDC unit, while another exact-model listing specifies 90–264 VAC. Verify the electrical rating from the nameplate of the specific unit before powering it.
🔎 Related ESA Models
The following models belong to the same or closely related ESA VT operator-terminal family. They should be treated as related models, not automatic replacements:
- ESA VT150W
- ESA VT160W
- ESA VT170W
- ESA VT190W
- ESA VT190W A0000
- ESA VT190W AP000
- ESA VT050
- ESA VT060
- ESA VT300W
- ESA VT310W
The VT170W and VT190W models are specifically listed together in ESA’s VT text-terminal documentation, with different key counts and memory/interface configurations.
📦 Identification & Ordering Notes
When purchasing or replacing an ESA VT190WA0000, compare the following before ordering:
- Complete MPN: VT190WA0000
- VT190W family designation
- Rear-panel interface arrangement
- Power-supply marking
- LCD and keyboard condition
- Firmware/project compatibility
- Required communication cable
- Physical mounting dimensions
Third-party equipment references list the physical dimensions around 200 × 250 × 60 mm and a weight around 1.2 kg, although the dimensions and weight should be treated as reference values and confirmed against the actual unit before cabinet planning.
Recommended eBay Short Title:
ESA VT190WA0000 | Text HMI Operator Panel 40×4 LCD
