Field Instruments

General

The DAC-1146 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 (DAC-1146E) or an RS-485 LAN using the BACnet MS/TP protocol (DAC-1146). It is designed for a wide-range of applications that have medium local I/O requirements. It also supports BACstat® and other Delta LINKnet devices.

Features

• Fully programmable in GCL+
• 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
• Optional field upgrade to Modbus® RTU with hardware key
• Service port
• Screw or DIN rail mountable
• LED indicator for each output, power, CPU and SCAN status

Specifications

• Make: Delta
• Model:  DAC-1146E
• BACnet Device Profile: BACnet Advanced Application Controller (B-AAC)
• Inputs: 11 Universal Inputs (10-bit) supporting:
  • • 0-5 VDC
    • 0-10 VDC
    • 10 kΩ Thermistor
    • Dry Contact (using 10 kΩ Thermistor
    • jumper setting)
    • 4-20 mA
• Outputs
  • • 6 Binary TRIAC Outputs (jumper configured for internal or external power)
    • 4 Analog Outputs (0-10 VDC)
• Device Addressing:  Set via DIP switches and jumpers, or software setup
• Connectors: Removable screw-type terminal connectors
• Wiring Class: Class 2 / SELV
• Power: 24 VAC 50/60 Hz @ 14 VA, 86 VA with fully-loaded Binary Outputs
• Technology: DAC-1146 : 16-bit processor, 1 MB flash memory, 127 KB SRAM memory for database
• Communications Ports;
  • • Main LAN Ethernet (10-BaseT)  BACnet IP, BACnet over Ethernet (DAC-1146E only) or RS-485 NET1 BACnet MS/TP up to 76800 bps, max 99 devices per port
    • SubLAN RS-485 NET2 Delta LINKnet up to 76800 bps, max 12 devices on LINKnet with no more than 2 DFM devices Optional Modbus up to 38400 bps, max 5 devices

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