Kernel Sistemi VTS804

The Kernel Sistemi VTS804 is a rugged, compact text-based HMI (Human Machine Interface) designed for industrial environments where a full-color graphical display is not required. It is frequently used for simple machine control, status monitoring, and parameter adjustment in combination with small-to-mid-sized PLCs.

Unlike the previously discussed color panels, the VTS804 is a Text Terminal that prioritizes physical durability and high-contrast readability.

1. Display and Visuals

• Display Type: High-contrast STN LCD with LED backlighting.

• Character Capacity: 20 characters ¹$\times$ 4 lines (Total 80 characters).²

   

• Visibility: Features excellent readability in various lighting conditions and allows for multi-language management (up to 6 languages).

2. Interface and Operation

The VTS804 is a Keypad-operated unit, making it ideal for environments where operators use heavy gloves or where touchscreen sensitivity might be affected by dust or oils.

• Numeric Keyboard: Full numeric keypad for direct value entry (setpoints, timers, etc.).³

   

• Function Keys: 5 programmable function keys (F1–F5), each equipped with an integrated status LED.⁴

   

• Tactile Feedback: High-quality membrane keys designed for millions of presses.

3. Connectivity and Ports

The VTS804 is highly flexible and can be used with or without a PLC.⁵

• Serial Port: One configurable serial interface that supports RS-232, RS-485, and RS-422.⁶

   

• PLC Compatibility: Pre-loaded with drivers for major brands including Siemens (S7-200), Omron, Modbus (RTU/ASCII), and Keyence.

• Local Mode: In “Local” use, it can communicate directly with inverters, temperature controllers, or motor drives without requiring a central PLC.⁷

   

4. Technical Specifications

5. Key Features

• Custom Protocols: One of the strongest points of Kernel terminals is the ability to create custom communication protocols, allowing it to talk to proprietary or specialized hardware.

• Rugged Design: Built for high reliability in vibration-prone environments.

• Integrated LEDs: The LEDs on the function keys can be mapped to PLC bits to provide immediate visual feedback (e.g., green for “Motor Running”, red for “Fault”).⁸

   

Maintenance Tip:

If the display characters become faded or “ghosted,” it is usually due to the LCD contrast setting. You can often adjust this in the system setup menu or via a potentiometer on the back of the unit. For communication issues, always verify the DIP Switch settings on the back, as these often define the serial port mode (RS-232 vs RS-485).