v3.1
Gett ng started
Software
Unipi Gate devices require an operating system stored on the onboard memory to run. By default, a Debian GNU/Linux with
the NodeRED software is preinstalled.
Network nterfaces
Unipi Gate feature interfaces marked as eth0 (100 Mbit) and eth1 (1 Gbit). By default, the interfaces are configured as network
bridge and act as a two-port sw tch. Any of the ports can be used to connect the device into a local network.
The device is configured to request an IP address automatically from the DHCP server. If the attempt is unsuccessful, the device
sets its interface to a random IP address from range 169.254.0.0 – 169.254.255.255. As an mDNS record is published on the
network, the device is visible in the network under a unique name. For the G100 model with serial number 123 the name would
be ”http://g100-sn123.local“. The serial number is listed on a sticker found on the device.
LED status nd cat on
CAUTION
Dev ce n default configurat on should be connected to local network w th only a s ngle cable. In case both interfaces
would be connected to a single network, a loop may occur disabling communication in the entire network.
www.un p .technology
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Label Funct on Mean ng Colour
PWR On/Off The device is turned On/Off Red
ACT Blinking Controller status indication Green
The dev ce nd cates ts status us ng LEDs:
Descr pt on of LED behav our Mean ng Off On Off
ACT is on Bootloader start (uboot) 3000 ms 1750 ms -
ACT blinks once The bootloader is running 250 ms 75 ms 1000 ms
ACT blinks twice The controller’s OS is booting 250 ms 75 ms -
ACT is continuously on and does
regular short blinks
The OS is running, the device is ready for
use 50 ms 2000 ms -
Regular mode
Descr pt on of LED behav our Mean ng Off On Off
ACT is on Bootloader start (uboot) 3000 ms >5000 ms -
ACT blinks once The bootloader is running 250 ms 75 ms 1000 ms
ACT blinks twice The controller’s OS is booting 250 ms 75 ms -
ACT, TX and RX are blinking
slowly The controller is in service mode 600 ms 600 ms -
ACT, TX a RX are blinking rapidly Indication of flashing the OS or creating its
backup 80 ms 80 ms -
Serv ce mode
1. Connect the device to a local network using a single network cable.
2. Connect the power supply to the device according to the manufacturer sticker and wait until the device boots up
into its regular mode (see LED status indication above).
3. Upon startup the device is accessible on the network via its IP address or unique name:
a. Welcome page with a link to Node-RED administration is accessible through a web browser at
http://<ip-address> or http://<name> (e.g. “http://g100-sn123.local“ see above).
b. SSH access is enabled on port 22 – user name is ”unipi“, the password is ”unipi.technology“
Serv ce mode
Service mode serves for restoration of access to the PLC (change of password or network configuration) and for upload or
backup of the operating system. In service mode the device allows access only into the service interface, other functions are
disabled.
1. Connect the device to a local network or directly to your PC using a network cable.
2. Press and hold the ”SERVICE“ button on the device’s front panel.
3. Connect a power supply to the device.
4. The device will boot into service mode indicated by slow flashing of ACT, TX, and RX LEDs.
5. You may now release the ”SERVICE“ button.
6. The device will assign itself an IP address of 192.168.200.200, will request an IP address from DHCP server and will
be also accessible on both IP addresses.
7. For access to the service interface, use a web browser and enter the IP http://<ip-address>.
In service mode, both network interfaces are set to network bridge mode. However, packet forwarding between the interfaces
(L2 forwarding) is disabled, preventing the device from working as a switch.
