UniOP MD00R-04-0045 HMI Text Display
1. Introduction
The UniOP MD00R-04-0045 is a specialized, ultra-compact HMI (Human Machine Interface) designed for cost-effective text-based machine control.
Part of the legendary MD Series by Exor, this model is the industry standard for “Text Display” requirements.
It provides a rugged, reliable, and space-saving interface for applications where graphical complexity is unnecessary, but clear, real-time data feedback is critical.
2. Technical Parameter Table
| Feature | Specifications / Details |
| Display Type | LCD Monochrome (Backlit) |
| Display Format | 2 Lines x 20 Characters |
| Character Height | 5 mm |
| User Memory | 128 KB Flash |
| Keypad Type | Membrane (Tactile Feedback) |
| Function Keys | 4 Programmable Keys (F1-F4) + System Keys |
| Communication Port | DB15 Female (RS-232, RS-485, RS-422) |
| Input Voltage | 24V DC (18-30V DC) |
| Current Consumption | ~150 mA |
| Protection Class | IP65 (Front Panel) |
3. Related Models
These models are frequently used as alternatives or complementary units within the same system architectures:
MD00G-04: The graphical equivalent offering simple icon support.
MD02R-04: A larger text display (4 lines x 20 characters) for more data-heavy menus.
CP01R-04: A compact alternative with different key layouts.
EK-02: Economy series for basic logic controller interfacing.
4. Application Cases
Pump Control Stations: Displaying flow rates, pressure levels, and simple “On/Off/Auto” status.
Small Packaging Units: Managing cycle timers and batch counters in tight physical spaces.
Air Compressors: Real-time monitoring of temperature, oil pressure, and maintenance alerts.
Material Handling: Simple directional controls and error code displays for small-scale conveyors.
5. Product Advantages and Features
Zero-Learning Curve: The simple text interface ensures operators can navigate menus without extensive training.
Extreme Compactness: Ideal for mounting on small control boxes or directly onto machine frames where space is at a premium.
Legacy Compatibility: Seamlessly replaces older MD-series units, maintaining the same cutout and communication protocols.
Rugged Membrane: Resistant to chemical splashes, grease, and industrial cleaning agents.
6. Other Models in the Same Series
The UniOP MD Series focuses on efficiency and text-based clarity:
MD00R-02: A variation with different memory configurations.
MD03R-04: Features expanded function keys for more complex navigation.
MD00R-04-0046: A hardware revision often found in high-spec European machinery.

MD00R-04-0045
7. Installation and Maintenance
Installation
Mounting: Use the standard mounting clamps provided. Ensure the front gasket is compressed evenly to maintain the IP65 moisture seal.
Wiring: Pin 1 of the DB15 connector is critical for ground shielding; use high-quality shielded twisted-pair cables for long RS-485 runs.
Maintenance
Diagnostic Mode: The unit features built-in self-test routines (accessible via power-on key combinations) to verify communication and pixel health.
Longevity: Designed for 10+ years of continuous operation. If the display dims, check the 24V DC supply stability first.
8. Unique Product Description
The UniOP MD00R-04-0045 is the “Minimalist Master” of industrial automation. While the industry pushes toward large, fragile touchscreens, the MD00R-04 remains the preferred choice for engineers who value function over flash.
It is nearly indestructible compared to modern tablets and provides a “no-nonsense” interface that ensures operators focus on the essential machine parameters. For 24/7 industrial environments, its simplicity is its greatest security.