Communication Manual

Chapter 2 │System integration 11
Ethernet setting
When NaviPad and Control unit are connected directly to each other via switch module without any
DHCP server they assign themselves with Auto-IP (Link-local) addresses and then randomly pick
from address range 169.254.x.y (255.255.0.0).
The possibility of using a static IP address as alternative to a dynamic IP address (DHCP) is available
from Access software version 4.0-1-04 and NaviPad software version 1.1.0.184. The system of an air
handling unit together with a NaviPad require two individual IP addresses, requested from Your
department responsible for the IP plan of the network!
For manually setting a static IP address, please follow below steps.
1. From NaviPad log in to the AHU web page
2. Select Yes to enable settings AHU to static IP via AHU web interface
3. Edit AHU control unit IP address, subnet mask, gateway and DNS according your IP plan
4. Select Yes for Save IP settings
5. Press home button on NaviPad to log out from AHU web page
The NaviPad will then lose the connection to AHU since it’s probably is assigned to a not valid
IP address anymore
6. In NaviPad system select Advanced HMI setting and select Ethernet (default login password
‘1111’)
7. Activate switch to enable Static IP setting
8. Edit NaviPad IP address, subnet mask and gateway according your IP plan
9. Use NaviPad to search for available devices and select AHU
NOTE When integrating and configure static IP addresses its very IMPORTANT to follow above
steps. Both the control unit of air handling unit and the NaviPad itself need to be assigned to individual
IP addresses.
NOTE The air handling unit and the NaviPad as well as any computer has to be connected on a local
network within the same IP subnet.
NOTE If no gateway is available use either 0.0.0.0 or equal to the IP address set for the device.