ABB CBXi Series User Manual

CBXi IP Controller | IP Networking
©ABB 2022 All Rights Reserved.
Subject to change without notice
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8
MAN0141 rev 2
3
In CIDR notation, /16 means that 16 of these bits represents the subnet, and the remainder specifies the
host:
CIDR
192 . 168 . 2 . 54 / 16
IP
Address
decimal
192
.
168
.
2
.
54
IP
Address
Binary
1
1
0
0
0
0
0
0
.
1
0
1
0
1
0
0
0
.
0
0
0
0
0
0
1
0
.
0
0
1
1
0
1
1
0
16 bits representing the subnet
host
Equivalen
t subnet
mask
255
.
255
.
0
.
0
CIDR
55 . 231 . 77 . 3 / 24
IP
Address
decimal
55
.
231
.
77
.
3
IP
Address
Binary
0
0
1
1
0
1
1
1
.
1
1
1
0
0
1
1
1
.
0
1
0
0
1
1
0
1
.
0
0
0
0
0
0
1
1
24 bits representing the subnet
host
Equivalent
subnet
mask
255
.
255
.
255
.
0
DEFAULT GATEWAY
Devices on the same subnet can address IP packets to each other without using a router device.
To communicate with devices on another subnetwork, the traffic must be routed through a router
device’s WAN port. When a device needs to communicate with an IP address that is not on the same
network, it sends the packet to the Default Gateway, which is usually the subnet’s Router.
Note: Some BACnet services use “broadcasts” (e.g. “Who-Is”). On a LAN with standard routers, these
broadcasts are “blocked”. As a result, BACnet broadcasts are limited to the IP Subnet of the BACnet
device. With a BACnet/IP network of 2 or more IP subnets, a device that can act as a BACnet/IP
Broadcast Management Device (BBMD) must be used.

ABB CBXi Series Specifications

General

Brand	ABB
Model	CBXi Series
Category	Controller
Language	English