DFM-400P Rev 2.1 Installation and Appplication Guide Edition 1.6
Page 6 of 14
DEVICE TYPE (No Jumper)
Note that the Pulse Input Field Module does not have a Device Type
jumper. It is fixed as a Subnet level device when connected to a
BACnet MS/TP network. As a result, the Pulse Input Field Module may
only be installed at the Subnet level, and the DIP or MAC address is
always mapped into the Subnet portion of its address, inheriting other
portions of its BACnet address when DNA is enabled.
DNA
DERIVED NETWORK ADDRESSING (DNA)
Derived Network Addressing (DNA), which works only on an MS/TP
network in conjunction with the
Device Type
setting and refers to the
ability of inheriting portions of its address from higher-up devices,
may be enabled or disabled via jumper setting.
Enabled
With the jumper in place, the device automatically obtains
portions of its overall BACnet device address (as related to
Area and System) from higher-up devices on the network.
This is the preferred method of addressing the controller in a
system of Delta devices.
Disabled
With the jumper removed, the device does
not
obtain any
portions of its address from higher-up devices. Instead,
default numbers are assumed (for Area and System), which
may be modified via software. This method of addressing is
most useful in OEM or multi-vendor installations where
Delta products do not exist higher-up in the network
architecture, or where device address ranges are pre-
assigned for the installation.
NOTE: Whether or not Derived Network Addressing is enabled, the
Addressing DIP switches are always used to set the device MAC
address.
