The DFM-400/404/440 provide remotely expandable I/O to Delta’s BACnet® Controllers. These field modules provide 4 universal inputs, in three different output configurations, and are capable of communicating on Delta’s LINKnet network or directly on an RS-485 BACnet MS/TP network (DFM-400 model only).
When connected to a LINKnet network the DFM-400/404/440 provides remote input and programmable output capabilities to the controller. When connected on the MS/TP network (DFM-400 only) the modules function as independent BACnet devices with inputs accessible over the BACnet MS/TP network.
The DFM-400/404/440 suits a diverse range of application needs where additional inputs and outputs are required, or where a small number of I/O’s are remotely located.
Native BACnet device (DFM-400 only) supporting communication on an RS-485 BACnet MS/TP network
Supports communicating on LINKnet
Derived Network Addressing (DNA) for simple integration into a standard network architecture
Extended temperature range for extreme ambient situations
BACnet Device Profile
BACnet Application Specific Controller (B-ASC)
4 Universal Inputs (10-bit) supporting: 0-5 VDC
10 kΩ Thermistor
Dry Contact (using 10 kΩ Thermistor jumper setting)
DFM-404: 4 Binary TRIAC outputs, 0.5 A @ 24 VAC, jumper selection for internal or external power on binary outputs, LED status indication
DFM-440: 4 Analog outputs (0-10 V), max 20 mA, LED status indication
Set via DIP switches and jumpers
Removable screw-type terminal connectors