Features
- Conforms to ASHRAE and ISO16484-1 defined BACnet AAC standard communication protocol, compatible with BACnet system.
- A 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.
- A MSnet communication interface can connect a MST20V, MST20S, DSP20U, MVT32U control panel or a MODBUS RTU Master or Slave device.
- A EIMnet communication interface can connect 12 x EIM I/O expansion modules.
- Binary input (BI) has 1000Vdc optical coupling isolation capabilities and status indicator design.>
- Binary output (BO) has 1,000Vdc optical coupling isolation, status indicators and manual on / off / auto three position select switch.
- Analog Input (AI) has 12-bit resolution, jumper selectable to accept 3K,10KΩ NTC thermistor, dry contact, 0~20mA, 4~20mA, 0~5VDC, 0~10VDC, or Pulse inputs.
- Analog Output (AO) has 12-bit resolution, can be selected by Internal parameters as 0 ~ 10VDC or 2 ~ 10VDC output signal, each point has an override/auto output switch and pot for manual or Auto control.
- User’s control program can be downloaded, edited and saved in flash memory of the controller.
- Performs 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.
- Provides power failure backup function for all AI/BO/AO/BV/AV values and stores 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.