ABB Cylon FBXi Series User manual

—
USER GUIDE
MAN0149 rev 10
FBXi Series

©ABB 2023 All Rights Reserved.
Subject to change without notice
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MAN0149 rev 10
Style conventions used in this document:
UI Text: Text that represents elements of the UI such as button names, menu
options etc. is presented with a grey background and border, in Tahoma
font which is traditionally used in Windows UIs. For example:
Ok
Standard Terms (Jargon): Text that is not English Language but instead refers to
industry standard concepts such as Strategy, BACnet, or Analog Input is
represents in slightly condensed font. For example:
BACnet
Code: Text that represents File paths, Code snippets or text file configuration
settings is presented in fixed-width font, with a grey background and
border. For example:
$config_file = c:\CYLON\settings\config.txt
Parameter values: Text that represents values to be entered into UI fields or
displayed in dialogs is represented in fixed-width font with a shaded
background. For example
10°C
Product Names: Text that represents a product name is represented in bold
colored text. For example
INTEGRA™
Company Brand names: Brands that are not product names are represented by
bold slightly compressed text:
ABB Cylon
PC Keyboard keys: Text representing an instruction to press a particular key on
the keyboard is enclosed in square brackets and in bold font. For
example:
[Ctrl]+[1]

Table of contents
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1THE FBXI SERIES
Introduction ...............................................................................................................6
Application..................................................................................................................6
2IP NETWORKING
What is IP? ..................................................................................................................7
Physical Layer (Layer 1)......................................................................................................................................7
DataLink Layer (Layer 2)....................................................................................................................................7
Network Layer (Layer 3).....................................................................................................................................7
Transport Layer (Layer 4)..................................................................................................................................7
Session Layer (Layer 5)......................................................................................................................................7
Presentation Layer (Layer 6)............................................................................................................................7
Applications Layer (Layer 7) .............................................................................................................................7
IP Addressing .............................................................................................................8
DHCP (Dynamic Host Configuration Protocol) ......................................................................................... 8
Subnetwork (Subnet)........................................................................................................................................ 8
Default gateway.................................................................................................................................................. 9
Port Numbers.................................................................................................................................................... 10
Uplink/WAN and Segmentation .......................................................................... 11
Network Address Translation (NAT)................................................................... 12
Domain Name System (DNS)................................................................................ 12
3BACNET NETWORKING
What is BACnet? ...................................................................................................... 13
BACnet object types...............................................................................................14
BACnet services.......................................................................................................14
BACnet's Client / Server nature ...........................................................................15
Network Types.........................................................................................................15
PIC Statement..........................................................................................................15
BACnet Topology ....................................................................................................16
BACnet IP .................................................................................................................. 17
BACnet IP Broadcast Management Device (BBMD)................................................................................17
BACnet MS/TP .........................................................................................................18
Token Passing....................................................................................................................................................18
Addressing..........................................................................................................................................................18
Baud Rates ..........................................................................................................................................................19
Network Optimization.....................................................................................................................................19
BACnet MS/TP Device Loading.....................................................................................................................19
Read Property Multiple....................................................................................................................................19
BACnet Priority Array....................................................................................................................................... 20
4FBXI WEB UI
Summary Dashboard ............................................................................................. 21
BACnet Menu............................................................................................................22
Device .................................................................................................................................................................. 22
Router Networks .............................................................................................................................................. 22
Time Sync ........................................................................................................................................................... 23

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BBMD / NAT....................................................................................................................................................... 24
IP Network Menu .....................................................................................................25
Configuration.................................................................................................................................................... 25
TCP/UDP Ports ................................................................................................................................................. 26
Edit SSL Cert / Sign SSL Cert ........................................................................................................................27
RS-485 Port Menu .................................................................................................. 28
Configuration.................................................................................................................................................... 28
Status .................................................................................................................................................................. 28
Platform Menu ........................................................................................................ 30
Status report .....................................................................................................................................................30
Firmware Upgrade utility...............................................................................................................................30
Backup/Restore utility.....................................................................................................................................31
Set Time and Date ........................................................................................................................................... 32
Restart utility ..................................................................................................................................................... 33
Diagnostics Menu .................................................................................................. 34
Processes ........................................................................................................................................................... 34
Debug Level ....................................................................................................................................................... 35
System logs........................................................................................................................................................ 36
Open-source acknowledgment notices .................................................................................................... 37
5INSTALLATION
Apply power to the FBXi ....................................................................................... 38
Connect the FBXi to an IP network .................................................................... 38
The FBXi Integrated Ethernet Switch......................................................................................................... 39
Configuring the IP connection ..................................................................................................................... 39
Configure the FBXi for BACnet® communications..........................................47
Connect the FBXi to BACnet MS/TP .................................................................. 49
Terminate the MS/TP network.....................................................................................................................49
Attach RS-485 communication wires to the MS/TP Subnet port......................................................49
Connect the FBXi Series to FLX units................................................................ 50
Set the FLX address ........................................................................................................................................50
Join or terminate the FLX bus.......................................................................................................................51
(If required) Set up FLX bus extension .......................................................................................................51
Add the Controller to the CXproᴴᴰ Site ............................................................. 54
Set Controller Date and Time ....................................................................................................................... 54
Set up the FBXi and connected FLX modules in a Site in CXproᴴᴰ .................................................... 55
(if required) Configure a Modbus Connection ........................................................................................ 59
Set I/O to a known Safe Mode .....................................................................................................................66
Set up the Controller Strategy .....................................................................................................................66
Accessing Modbus points in the Strategy................................................................................................68
6FBXI OPERATION
Physical Layout ....................................................................................................... 70
FBXi Indicator LED Signals............................................................................................................................ 73
Inputs and Outputs –FLX modules ....................................................................74
Input modes ...................................................................................................................................................... 74
Output modes....................................................................................................................................................77
Auxiliary Power outputs ........................................................................................78
Using a Keypad with the FBXi ..............................................................................79
Restarting, Resetting and upgrading the FBXi ............................................... 80
Resetting the WebUI login.............................................................................................................................80

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Full factory reset...............................................................................................................................................80
Upgrade Firmware from USB .......................................................................................................................80
Restarting the controller without power cycling....................................................................................80

FBXi Series | The FBXi Series
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1 The FBXi Series
INTRODUCTION
The FBXi Series is a freely programmable range of BACnet® Controllers with native BACnet/IP
communications support. The controllers are BTL listed (pending) BACnet Building Controller (B-BC) and are
ideally suited for a wide range of applications for intelligent control of HVAC equipment, and electrical
systems including lighting control and metering applications. The FBXi Series supports multi-protocol
communications simultaneously including BACnet/IP, BACnet MS/TP, Modbus® TCP and Modbus RTU.
Part of Cylon’s FLXeon Line of BACnet field controllers, the FBXi Series features support for up to sixteen FLX
(Field Level eXpansion) series extension modules providing up to 256 points of control, and a dedicated input
for Cylon’s CBT-STAT or UCU Room Display intelligent room sensors. FLX I/O expansion modules are available
in a variety of options to allow maximum flexibility in achieving the required point configuration.
FBXi, CBXi and FBVi controllers with Firmware v 9.1.0 and later have additional capabilities over previous ABB
Cylon controllers and are referred to as “Smart Routers”. One of these features is the ability to store the
strategies and configuration for the controller, and also support full upload and download of data for MSTP
fieldbus controllers.
APPLICATION
The FBXi Series is designed for a wide range of energy management applications for intelligent control of:
•HVAC equipment such as Central Plant, Boilers, Chillers, Cooling Towers, Pump Systems, Air Handling
Units (Constant Volume, Variable Air Volume and Multi-zone), and Rooftop Units,
•Electrical systems such as lighting control, variable frequency drives and metering.
The FBXi Series can be used as an integration platform and natively supports the routing of either BACnet
MS/TP to BACnet/IP or Modbus RTU to Modbus TCP without the need for gateways or additional hardware.
The controller accommodates available pre-engineered strategies or can be tailored to custom applications
using CXproᴴᴰ programming software

FBXi Series | IP Networking
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2 IP Networking
WHAT IS IP?
IP (Internet Protocol) is an agreed standard that defines how devices communicate over the Internet or other
Internet-like Ethernet network.
IP is part of a 7-layer architecture consisting of
•Physical Layer (Layer 1)
•DataLink Layer (Layer 2)
•Network Layer (Layer 3)
•Transport Layer (Layer 4)
•Session Layer (Layer 5)
•Presentation Layer (Layer 6)
•Applications Layer (Layer 7)
PHYSICAL LAYER (LAYER 1)
This refers to the electrical impulses (or light signal or radio signals) carried on the cable (or fiber, air or other
physical medium). For IP, the physical layer is usually Ethernet.
DATALINK LAYER (LAYER 2)
This is where data packets are translated to and from bits, which can be transferred on the Physical Layer
NETWORK LAYER (LAYER 3)
Layer 3 provides switching and routing to create paths for data to be transmitted from node to node within
the network. This is the layer that gives IP its name.
TRANSPORT LAYER (LAYER 4)
This layer is responsible for end-to-end error recovery and flow control, enabling transparent transfer of data
between hosts.
SESSION LAYER (LAYER 5)
The Session layer manages exchanges (conversations) between the “applications” on each host.
PRESENTATION LAYER (LAYER 6)
This layer translates between application and network formats, so that communication independent of data
representation such as ASCII, GIF, JPEG etc.
APPLICATIONS LAYER (LAYER 7)
Everything at layer 7 is application-specific, such as Telnet, FTP, WWW browsers, HTTP etc.

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IP ADDRESSING
Each device has at least one IP address, which uniquely identifies it from all other devices on the network.
There are several forms of IP addresses, but the most commonly used is IPv4, which consists of 4 numbers
(between 0 and 255 ) separated by dots e.g. 192 . 168 . 222 . 51
DHCP (DYNAMIC HOST CONFIGURATION PROTOCOL)
The address can be set manually on the device itself, or else the device can be assigned one by a master
controller on the network. This master controller is known as the Dynamic Host Configuration Protocol
(DHCP) server.
To use an IP address, a device must know several pieces of data, including the IPv4 address that the device
will use, the IP address of the Domain Name Server (DNS) where the device can find IP addresses of other
devices, and the IP address of the Default Gateway device through which communications are routed.
Using DHCP means that all these pieces of information are set automatically avoiding the need for specialist
knowledge of IP networking. If DHCP is available on your network is the most convenient way to configure
your devices.
DHCP reservation
A DHCP server can be configured to always assign a particular IP address to a specific device. This is called a
DHCP reservation and enables a user to access a device by IP address even if the device power-cycles and
makes a new DHCP request.
SUBNETWORK (SUBNET)
A subnet is a logical division of a network –that is while it might be physically connected to other subnets,
communications traffic from one subnet can be kept separate from comms origination on other subnets.
A group of the most significant bits of the IPv4 address (the numbers at the start of the address) specifies
the address of a network or subnetwork. This is called the Network Prefix. The remainder specifies the host –
the address unique to the specific device.
For example:
•on the 192.168 subnet, an IP address of 192.168.2.54 refers to device 2.54.
•On the 55.231.77 subnet, IP address 55.231.77.3 refers to device 3
The specific parts of the address that are in each portion is defined by the device’s ‘Subnet Mask’. This can be
expressed as a “bitmask” that is applied by a bitwise AND operation – e.g. 255.255.0.0 means that only the
last 2 segments of the address apply to the local subnet.
For example,
•if the address 192.168.2.54 has a subnet mask “255.255.0.0”, that means that 192.168 is the subnet
address, and 2.54 is the device address.
•if the address 55.231.77.3 has a subnet mask “255.255.255.0”, that means that 55.231.77 is the subnet
address, and 3 is the device address.
The network can also be identified by a decimal number following the first IP address on the network –e.g.
55 . 231 . 77 . 0 / 24 . This is called Classless Inter-Domain Routing (CIDR) notation. The decimal number represents
the number of bits allocated for the Network Prefix.
Each segment of an IP address represents 8 bits,
i.e. 192 . 168 . 2 . 54 could also be written 11000000 . 10101000 . 00000010 . 00110110

FBXi Series | IP Networking
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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.

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PORT NUMBERS
A “Port” on an IP device is a concept that allows traffic to be mapped within a device’s address to a specific
process running in that device. A Port number forms part of a data packet’s IP address, but is often set by
convention, depending on the protocol that the packet uses. For example, HTTP traffic by convention uses
port 80 . If no port is specified in the IP address for HTTP traffic, port 80 will be assumed. If a port is specified
(e.g. port 8080 as in the address 192 . 168 . 100 . 33 : 8080 ), the specified port will be used instead. This allows the
device to communicate on multiple protocols at the same time.
Some of the services associated with port numbers include:
Service
Protocol
Default Port Number
SMTP
TCP
25
DNS
TCP, UDP
53
DHCP
UDP
67
HTTP
TCP
80
HTTPS
TCP
443
BACnet/IP
UDP
47808
Some of the port numbers recognized by FBXi are shown below. These can be changed in the controllers
Web UI at IP Network > TCP/UDP Ports