The ESA VT555W is a rugged industrial operator interface terminal designed for monitoring and control applications . It features a touch screen that provides a user-friendly and flexible method for machine operation, making it suitable for a variety of industrial environments .
Specifications
The technical details for the VT555W are as follows :
- Display Type: Monochrome STN (Super-Twisted Nematic)
- Screen Size: 5.5 inches
- Resolution: 240 x 128 pixels
- Backlight: CCFL (Cold Cathode Fluorescent Lamp)
- Memory: 192 KB for text + 384 KB for graphics; 128 KB for alarms + 8 KB RAM for recipes
- Power Supply: 24 VDC
- Front Panel Protection: IP65 rating (dust-tight and protected against low-pressure water jets)
Connectivity and Software
The terminal supports multiple communication protocols to interface with various automation equipment. Depending on the specific model variant, it can include ports such as RS232/485/422, TTY 20mA, CAN network, Profibus-DP, and a parallel LPT port .
It is programmed using ESA’s Polymath Advanced or Polymath Basic software .
Certifications and Environmental Limits
The VT555W is built for industrial reliability and complies with several international standards :
- Certifications: CE, cULus, RINA, DNV
- Operating Temperature: 0°C to +50°C
- Humidity (Non-condensing): Less than 85%
