HONEYWELL UNITARY CONTROLLER - 230 VAC - INSTALLATION INSTRUCTIONS
BACNET™ IP CONTROLLER
Every Unitary controller has a physical MAC address
printed on the device. The physical MAC address of the
controller is listed using the "arp -a" function on the
command prompt of a Windows computer.
Connecting to an IP network
Honeywell Unitary controllers communicate over wired
IPv4 network using Ethernet connection via two RJ45
ports.
DHCP IP Configuration
A new controller from the factory has DHCP enabled by
default.
• For the first 15 seconds after powering the controller,
a search for a DHCP server will be performed to
acquire an IP address.
Link-local addressing
• If a DHCP server is not found, the controller will
switch to Auto IP mode, in which it follows link-local
addressing for address resolution.
• It will acquire an IP address in the range 169.254.1.0
- 169.254.254.254. The controller will use the last
two characters of its serial number as the last octet
for starting address search. For example, if the serial
ends with "36" (decimal value= 54), the IP address is
set to 169.254.1.54).
• The controller will periodically (every 1 minute)
search for the DHCP server. If a server is found, the
controller will acquire a new IP address from the
server and start using it immediately.
31-00610-01
24