Description
Honeywell MVC-WEB-2026B3A
Technical Specifications
- Product type: Embedded web server controller
- Processor: Industrial embedded CPU
- Memory: 512MB RAM, 8GB flash storage
- Communication: Ethernet, RS485
- Supported protocol: BACnet, Modbus, LonWorks
- Power supply: DC24V
- Operating temperature: 0 °C to +60 °C
- Storage temperature: -40 °C to +85 °C
- Humidity: 10% to 90%, non-condensing
- Protection grade: IP20
- Mounting: DIN rail
- RTC: Built-in real-time clock with backup battery
Functional Features
- Embedded web server for browser-based remote access
- Multi-protocol data collection from field devices
- Local trend log and alarm data storage
- Customizable web graphic display page
- User authority management for web login
- Scheduled automatic report generation
- Ethernet connection to LAN network
- RS485 bus for field device communication
- Event time stamp recording
- Data backup and restore function
Application Scenarios
- Building automation system web monitoring
- Factory HVAC central monitoring
- Clean room environmental remote supervision
- Water treatment plant remote data access
- Commercial facility energy monitoring system
Materials and Construction
- Housing: Flame retardant plastic enclosure
- PCB: FR4 industrial printed circuit board
- Terminal block: Screw copper terminals
- Ethernet connector: RJ45 shielded port
- Backup battery: Lithium battery for RTC
- LED: Network, power and fault indicator
Structural Features
- Rectangular DIN rail plastic housing
- Front panel LED indicators
- Front RJ45 Ethernet port
- Top and bottom screw terminals for power and RS485 bus
- Rear DIN rail snap clip
- Internal embedded circuit module
Working Principle The embedded controller runs WEB station firmware. It communicates with field controllers via RS485 bus and Ethernet to collect real-time measurement data and alarm events. Data is stored in local flash memory. The built-in web server provides web graphic pages. Authorized users access monitoring page through standard web browser over LAN network. RTC records accurate timestamp for logs and alarms.
Installation Requirements
- Mount on 35mm DIN rail inside control cabinet
- DC24V stable power supply
- Shielded twisted pair cable for RS485 bus
- Ethernet cable connected to local area network switch
- Ambient temperature 0 °C to +60 °C
- Assign static IP address and configure communication protocol after power on
- Cabinet protective grounding
Precautions
- Replace RTC backup battery periodically
- Configure user access permission to avoid unauthorized login
- Perform regular data backup
- Keep cabinet dry without condensation
- Store spare unit in anti-static dry packaging
- Check network communication status regularly
