DACU842BT is a BTL listed standalone BACnet B-AAC class programmable controller with a TFT LCD touch control panel. It is designed for monitor and control building electromechanical device, large AHU, clean room, fume hood, large-scale end device control. It uses 32-bit microprocessor core, communication speed up to 76,800 bps, transmission distance up to 1,200 meters. DACU842BT has 8 Universal Inputs (UI), 4 Binary Outputs (BO) and 2 Analog Outputs (AO). In addition, it has an EIMnet port can connect up to 12 EIM series of expansion modules, allowing you to expand in response to the needs of various points. DACU842BT conforms to international BACnet MS/TP communication protocol, and fully compatible with any BACnet system. It is absolutely the best product for your building.
【Features】
- BTL listed BACnet Advanced Application Controller (B-AAC) class device.
- 2.8” screen, 65,536 colors, touch screen TFT LCD, 320*240 pixel, set up and edit with AIRTEK BACsoft software.
- MS/TP(Master-Slave/Token-Passing) communication interface, with Peer to Peer function can read and write other DDC’s object, may issue a read (DS-RP-A/DS-RPM-A) and write (DS-WP-A) BACnet object properties function.
- The EIMnet communication interface can connect up to 12 EIM I/O expansion modules, maximum limit less than 100 points.
- Universal Input (UI) has 12-bit resolution, dry contact, pulse, 3K or 10KΩ NTC thermistor, 0~10VDC, 4~20mA input signal.
- Binary Output (BO) has 5,000Vrms optical coupling isolates, 8A/250VAC/SPST relay (Relay), Status Indicator design. Each point has a manual on / off / auto three sections selector switch.
- Analog Output (AO) has 12-bit resolution, can be DIP switch and software selected 0~10VDC output signal, each point has a manual override/auto output control switch.
- The user’s control program can be downloaded, online edited and saved in flash memory of the controller.
- Carry out calculations such as proportional, integral, differential, floating, logic, arithmetic and etc.
- 150 Binary Value (BV) and 150 Analog Value (AV) points, the analog value adopts high precision floating-point calculation.
- Priority control array by 16 for all BO, AO and BV.
- Provide power failure backup functions for all AI/BO/AO/BV/AV values keep in FRAM for at least 10 years.
- Real-time clock, 2 Calendars, 12 Schedules, 4 Notification Class, 20 Event Enrollments standard BACnet object. Schedules and event enrollments support external object access function.
- TFT Touch screen is provided with 10 password levels. User can setup up to 20 passwords.