DAC-1146E

The DAC-1146E is a fully programmable, Native BACnet™ Advanced Application Controller that either communicates on Twisted-Pair Ethernet 10-BaseT using BACnet IP and BACnet over Ethernet or an RS-485 LAN using the BACnet MS/TP protocol. It is designed for a wide-range of applications that have medium local I/O requirements. It also supports BACstats and other Delta LINKnet devices.

Application

The DAC-1146E is suitable for controlling various packaged units and equipment with medium I/O requirements such as small Air Handling Units, Boilers, and Chillers. The fully programmable DAC-1146E can be tailored to specific applications by creating and modifying BACnet objects and GCL+ programs.

Features

  • Native BACnet firmware
  • Fully programmable in GCL+
  • BACnet MS/TP communications (DAC-1146), BACnet/IP and BACnet Ethernet(DAC-1146E)
  • Super Capacitor for real-time clock and SRAM backup which requires no maintenance (DAC-1146E)
  • Supports 10 BACstat network sensors on LINKnet for room sensing and control, or 2 Delta Field Modules on LINKnet for I/O expansion
  • Actuator power terminal (24 VAC) for each analog output (can be powered internally or from an auxiliary transformer)
  • Firmware upgrade and database load/save over the network
  • Supports Modbus® capability via flash loading in the field
  • Service port
  • Screw or DIN rail mountable

BACnet Device Profile
BACnet Advanced Application Controller(B-AAC)

Inputs
11 Universal Inputs (10 bit) supporting:

  • 0-5VDC
  • 0-10VDC
  • 10KΩ
  • 4-20mA

Outputs
6 Binary TRIAC Outputs (jumper configured for internal or external power)
4 Analog Outputs (0-10VDC)
LED status indication of each output

Technology
DAC-1146
32-bit processor
1MB flash memory
127KB SRAM memory for database
LED indication of CPU and SCAN status

DAC-1146E
32-bit processor
2MB flash memory
319KB SRAM memory for database
LED indication of CPU and SCAN status
Real-time clock
Super Capacitor for 72-hour backup of realtime clock and SRAM

Device Addressing
Set via DIP switch and jumpers, or software setup

Communications Ports
Twisted Pair Ethernet (10-BaseT) @ 10MB, BACnet IP, BACnet over Ethernet (optional)

RS-485 NET1
BACnet MS/TP @ 9600, 19200, 38400 or 76800 bps (default), maximum of 99 devices per BACnet MS/TP segment 

RS-485 NET2
Delta LINKnet @ 76800 bps, maximum 10 devices on LINKnet, with no more than 2 DFM devices

Connectors
Removable screw-type terminal connectors

Wiring Class
Class 2 / SELV

Power
24 VAC
14 VA, 86 VA with BOs fully-loaded

Ambient
32° to 131°F (0° to 55°C)
10-90% RH (non-condensing)

Dimensions
103⁄8 x 41/4 x 115⁄16 in. (26.2 x 10.7 x 4.9 cm) with housing
0.944 lb. (428 g) with housing 

Compliance
CE
FCC

Listings
C-UL
UL 916
BTL

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