AMX NXB-KNX User manual

Instruction Manual
NetLinx Interface Controllers
NXB-KNX
KNX Communications Gateway
Last Revised: 4/28/2014

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Table of Contents
i
NXB-KNX KNX Communications Gateway
Table of Contents
NXB-KNX KNX Communications Gateway .........................................................1
Overview .................................................................................................................. 1
Product Specifications ............................................................................................. 1
Installation ..........................................................................................................3
Wiring and Connections............................................................................................ 3
Ethernet 10/100 Base-T RJ-45 Wiring Configuration ................................................ 3
PoE (Power Over Ethernet) ............................................................................................. 4
KNX Connector......................................................................................................... 4
Configuration ......................................................................................................5
Overview .................................................................................................................. 5
Determining the IP Address of the NXB-KNX........................................................... 5
NetLinx Studio (featuring Zero-Config functionality)....................................................... 5
Accessing the NXB-KNX WebConsole via Zero-Config ................................................... 6
Accessing the WebConsole via Web Browser ................................................................. 6
Admin Menu ............................................................................................................. 7
Device Configuration ................................................................................................ 7
Device Configuration tab ................................................................................................ 7
Changing the Device Number ......................................................................................... 7
Master Connection tab.................................................................................................... 8
Security Settings ....................................................................................................... 8
Enable / Disable Security Settings .................................................................................. 9
Login Information ............................................................................................................ 9
Logging Into the Configuration Manager (With Security Enabled).................................. 9
IP Settings............................................................................................................... 10
Port Settings........................................................................................................... 10
Clock Manager........................................................................................................ 11
Clock Manager - Mode Manager ................................................................................... 12
Clock Manager - Daylight Savings ................................................................................. 13
Clock Manager - NIST Servers ....................................................................................... 13
NetLinx Programming ......................................................................................15
Overview ................................................................................................................ 15
Understanding the KNX Bus ................................................................................... 15
KNX Bus Diagram.......................................................................................................... 16
Notes on Line Couplers ................................................................................................. 16
User Data (DPT) Specifications and Requirements ........................................................ 17
Integrating with NetLinx......................................................................................... 18
Channels and Levels ...................................................................................................... 18

ii NXB-KNX KNX Communications Gateway
Table of Contents
Data Types ................................................................................................................... 18
Feedback ................................................................................................................ 19
Runtime ......................................................................................................................... 19
Debugging .................................................................................................................... 19
AMX_NXB_MOD Module........................................................................................ 20
AMX_KNX_Updater Module................................................................................... 20
Accessing Actuators On the KNX Bus..................................................................... 20
KNX_Table.axi Include File............................................................................................ 20
KNX_Tools.axi Include File ............................................................................................ 20
Analyzing Feedback................................................................................................ 21
NetLinx SEND_COMMANDs................................................................................... 21
ADD= ..................................................................................................................................... 21
ADR........................................................................................................................................ 21
BIND= .................................................................................................................................... 22
DATE=.................................................................................................................................... 22
DATE? .................................................................................................................................... 22
DEBUGON.............................................................................................................................. 22
DEBUGON= ........................................................................................................................... 22
DEBUGOFF ............................................................................................................................ 23
DEL......................................................................................................................................... 23
EIS5=...................................................................................................................................... 23
EIS5? ...................................................................................................................................... 23
ERRORM= .............................................................................................................................. 23
GET= ...................................................................................................................................... 24
GET?....................................................................................................................................... 24
HELP (or) /? ............................................................................................................................ 24
ICSP........................................................................................................................................ 24
LIST ........................................................................................................................................ 24
LIST <No> .............................................................................................................................. 24
LIST <No> <No2>.................................................................................................................. 25
LIST <Type> ........................................................................................................................... 25
LIST BIND ............................................................................................................................... 25
LIST FLAGS............................................................................................................................. 25
LIST GAPS .............................................................................................................................. 25
LIST LOAD.............................................................................................................................. 26
LIST POLL ............................................................................................................................... 26
LIST SAVE............................................................................................................................... 26
LIST SUM................................................................................................................................ 26
LIST WATCH........................................................................................................................... 26
POLL= .................................................................................................................................... 26
POLL?..................................................................................................................................... 26
POLLDELAY= ......................................................................................................................... 27
POLLSTART ............................................................................................................................ 27
SEARCH.................................................................................................................................. 27
SENDDELAY= ........................................................................................................................ 27
SET=....................................................................................................................................... 28
STATE?................................................................................................................................... 28
STATUS .................................................................................................................................. 28
TIME=..................................................................................................................................... 28
TIME? ..................................................................................................................................... 29

Table of Contents
iii
NXB-KNX KNX Communications Gateway
VAL= ...................................................................................................................................... 29
VERSION ................................................................................................................................ 29
WATCH .................................................................................................................................. 29
WATCH OFF........................................................................................................................... 29
WHEN= .................................................................................................................................. 29
Sample Program ..................................................................................................... 30
KNX Table ..................................................................................................................... 30
Notes For Programming................................................................................................ 30
Example 1 - Structure of KNX Table With Functions From KNX_Tools.axi.................... 30
Example 2 - Structure of KNX-Table with SEND_COMMANDS..................................... 32
Example 3 - Load Configuration from File..................................................................... 33
Example 4 - Main Program ............................................................................................ 34
KNX_Tools.axi......................................................................................................... 35
Functions Available In KNX_Tools.axi............................................................................ 35
KNXSet .................................................................................................................................. 35
KNXGet.................................................................................................................................. 35
KNXPoll.................................................................................................................................. 35
KNXAdd................................................................................................................................. 35
KNXWhenPoll......................................................................................................................... 35
KNXString2Array ................................................................................................................... 35
KNXArray2String ................................................................................................................... 35
Cross-Line Communication ...............................................................................37
Overview ................................................................................................................ 37
Integrating the NXB-KNX Virtual Device Into An ETS3 Project..................................... 37
Adding the Virtual Device to the ETS3 Project ............................................................. 38
NetLinx Firmware Upgrades .............................................................................41
Overview ................................................................................................................ 41
Before You Start ..................................................................................................... 41
Sending a Firmware (*.KIT) File To the NXB-KNX ......................................................... 42
Additional Documentation ............................................................................................ 44
One-Time Upgrade of the NXB-KNX to a Native NetLinx Device ....................45
Overview ................................................................................................................ 45
Determining the Current Firmware Version Of the NXB-KNX....................................... 46
Browse For the New Firmware Upload File................................................................... 46
If Current Firmware Version Is Lower Than v1.0.36....................................................... 46
Determining the Current Application Version Of the NXB-KNX ................................... 47
If Current Application Version Is Lower Than v2.0.15 ................................................... 47
Appendix A: Telnet Commands ........................................................................49
Overview ................................................................................................................ 49
Establishing a Terminal Connection Via Telnet ....................................................... 49
Terminal Commands ............................................................................................... 50

iv NXB-KNX KNX Communications Gateway
Table of Contents
Appendix B: Troubleshooting ...........................................................................55
Overview ................................................................................................................ 55

NXB-KNX KNX Communications Gateway
1
NXB-KNX KNX Communications Gateway
NXB-KNX KNX Communications Gateway
Overview
The NXB-KNX KNX Communications Gateway (FG2031-01) allows AMX NetLinx Integrated Controllers the ability
to control, integrate and communicate with homes and buildings that utilize the KNX communication protocol.
KNX is the world’s first open, royalty-free, and platform independent standard for home and commercial building
control.
Product Specifications
FIG. 1 NXB-KNX Interface
NXB-KNX Specifications
Front Panel LEDs • Status (green): Blinks to indicate that the unit is communicating with the NetLinx Master. Any
state other than blinking indicates the unit has not completed boot up.
• KNX (green): Solid on indicates power is on and the unit is connected to the KNX bus.
• Output (red): Lights to indicate traffic from the NXB-KNX to the KNX bus.
• Input (yellow): Lights to indicate traffic from the KNX bus to the NXB-KNX.
Rear Panel Connectors: • KNX 2-pin captive-wire connector (optically isolated).
• Ethernet Port - 10/100 Ethernet with PoE. LEDs show communication activity, connection
status, speeds, and mode information:
SPD (speed) - Yellow LED lights On when the connection speed is 100 Mbps and turns Off
when the speed is 10 Mbps.
L/A (link/activity) - Green LED lights On when the Ethernet cables are connected and
terminated correctly, and blinks when receiving Ethernet data packets.
Power Requirements: • PoE powered – no local Power Supply needed
• IEEE 802.3af Compliant
Memory: • 64 Mbytes of RAM
• 256 Mbytes of FLASH
Dimensions (HWD): With feet:
• 1.66" x 5.54" x 4.10"
• 4.216 cm x 14.07 cm x 10.42 cm
Without feet:
• 1.52" x 5.54" x 4.10"
• 3.861 cm x 14.07 cm x 10.42 cm
Weight: 1.45 lbs. (0.65 kg)
(front)
(rear)

NXB-KNX KNX Communications Gateway
2NXB-KNX KNX Communications Gateway
NXB-KNX Specifications (Cont.)
Operating Environment: • Operating Temperature: 32°F - 104°F (0°C - 40°C)
• Relative Humidity: 5% to 85% non-condensing
• Intended for indoor use only
Included Accessories: • Rubber feet
• Green 2-Pin 5mm Phoenix connector with captive screws
Other AMX Equipment: • AC-DIN-CS3 DIN Rail Mounting Bracket (FG532-01)
• PS-POE-AF PoE Injector (FG423-80)
Certifications: • FCC Class B
•CE
• IEC60950
•RoHS

Installation
3
NXB-KNX KNX Communications Gateway
Installation
Wiring and Connections
The NXB-KNX is installed between the NetLinx Master and the KNX control bus, and passes NetLinx control
commands to the KNX control bus via 2-wire twisted pair cabling, as indicated in FIG. 2:
After you have completed the installation, consult the Configuration section on page 5.
Ethernet 10/100 Base-T RJ-45 Wiring Configuration
The table below describes the pinouts, signals, and pairing for the Ethernet 10/100 Base-T connector and cable.
FIG. 3 diagrams the RJ-45 pinouts and signals for the Ethernet RJ-45 connector and cable.
To avoid any damage to the electronic component, installation must be performed in
an ESD safe environment.
Do not connect power to the NXB-KNX until the wiring is complete.
FIG. 2 NXB-KNX installation
Ethernet Pinouts and Signals
Pin Signals Connections Pairing Color
1 TX + 1 --------- 1 1 --------- 2 White-Orange
2 TX - 2 --------- 2 Orange
3 RX + 3 --------- 3 3 --------- 6 White-Green
4 no connection 4 --------- 4 Blue
5 no connection 5 --------- 5 White-Blue
6 RX - 6 --------- 6 Green
7 no connection 7 --------- 7 White-Brown
8 no connection 8 --------- 8 Brown
FIG. 3 Straight-Through Wiring
KNX
Control
Bus
NXB-KNXNetLinx Master
Ethernet 10/100 2-wire twisted pair
PoE injector

Installation
4NXB-KNX KNX Communications Gateway
PoE (Power Over Ethernet)
The NXB-KNX uses CAT5/CAT6 wire via the Ethernet port for PoE power.
Use the PS-POE-AF Power over Ethernet Injector (FG423-80) to simplify wiring and installation by eliminating the
need for an AC outlet at each point of installation.
If used with a non PoE-capable Ethernet switch (such as the NXA-ENET24), then an optional PS-POE-AF
Power-over-Ethernet (PoE) power supply is required to provide power to the NXB-KNX.
If the NXB-KNX is used with a PoE-capable Ethernet switch (such as the NXA-ENET24PoE), then no PoE
Injectors are required.
KNX Connector
The KNX connector on the rear panel is a 2-pin captive-wire connector (optically isolated) that provides communication
between the NXB-KNX and the KNX control system via 2-wire shielded twisted pair cabling (FIG. 4).
The NXB-KNX can be placed up to approximately 330’ (100 meters) from PoE
Injector.
FIG. 4 KNX Connector wiring diagram
KNX
Control
Bus
2-wire twisted pair
+
-

Configuration
5
NXB-KNX KNX Communications Gateway
Configuration
Overview
NXB-KNX units have a built-in WebConsole that allows you to make various configuration settings via a web browser
on any PC that has access to the NXB-KNX device. The web console consists of a series of web pages that are
collectively called the "NXB-KNX Configuration Manager" (FIG. 5).
The NXB-KNX is set to DHCP by default.
Determining the IP Address of the NXB-KNX
NXB-KNX units feature a built-in zero-configuration networking client that allows you to determine the unit’s IP
address via NetLinx Studio v3.0 (or higher), or a similar zero-configuration client.
Zero-configuration (or Zero-Config) technology provides a general method to discover services on a local area network.
In essence, it allows you to set up a network without any configuration, as described below.
NetLinx Studio (featuring Zero-Config functionality)
NetLinx Studio (v3.0 or higher) features a "Zero-Config" tab in the Workspace Window. This tab provides Zero-Config
networking functionality within NetLinx Studio (FIG. 6).
Refer to the NetLinx Studio online help for details on using Zero-Config.
FIG. 5 NXB-KNX Configuration Manager - IP Settings Page (initial view)
FIG. 6 Workspace Bar - Zero-Config tab
Hover mouse here to access
the Admin drop-down menu
Click here to log in

Configuration
6NXB-KNX KNX Communications Gateway
Accessing the NXB-KNX WebConsole via Zero-Config
Assuming that the NXB-KNX resides on the same LAN as the PC running NetLinx Studio, and the NetLinx Master to
which the NXB-KNX is connected, you can access the NXB-KNX via the Zero-Config feature in Netlinx Studio, as
described below:
1. In NetLinx Studio (version 3.0 or higher), right-click inside the Zero-Config tab of the Workspace Bar to access the
Zero-Config context menu (FIG. 7).
2. Select Refresh List to generate an initial listing of all Zero-Config devices detected (FIG. 8).
3. Click the plus symbol (+) to expand any device in the Zero-Config list. The device’s current IP Address is listed
below the device name (FIG. 8):
4. You can access any device in the Zero-Config list simply by double-clicking on it's entry. The selected device's
WebConsole (HTML) is displayed in a NetLinx Studio window.
5. The unit’s IP Address can be edited IP Settings page (see the IP Settings on page 10).
Accessing the WebConsole via Web Browser
From any PC that has access to the LAN that the NXB-KNX resides on:
1. Open a web browser and type the IP Address of the target NXB-KNX unit in the Address Bar.
2. Press Enter to access the WebConsole for the specified NXB-KNX unit. The initial view is the IP Settings page
(FIG. 5).
FIG. 7 NetLinx Studio - Zero-Config context menu
FIG. 8 Workspace Bar - Zero-Config tab

Configuration
7
NXB-KNX KNX Communications Gateway
Admin Menu
There are several configuration pages included in the Configuration Manager, all of which are accessed via the Admin
drop-down menu (FIG. 9):
Click on an option in this menu to access each of the configuration pages, as described in the following
sub-sections:
Device Configuration
Select Device Configuration from the Admin menu to open the Device Configuration page. Use the options on the page
to specify a Device Number and define connection information for the NetLinx Master.
This page contains two tabs: Device Configuration, and Master Connection.
Device Configuration tab
The initial view of this page is the Device Configuration tab (FIG. 10):
The current device number assigned to this NXB-KNX unit is displayed in the Device Number field.
The version of the device Application currently loaded on this unit is displayed under Current Application Information.
Changing the Device Number
FIG. 9 NXB-KNX Configuration Manager -Admin menu
If you see the additional entries: Application Upgrade and Firmware Upgrade in
the Admin menu, it is an indication that your NXB-KNX is currently using an older
version of the device Application and Firmware.
Refer to the One-Time Upgrade of the NXB-KNX to a Native NetLinx Device on
page 45 for instructions on upgrading your NXB-KNX to the latest NetLinx Firmware.
Once the unit has been upgraded to the current version of NetLinx Firmware, the
Admin Menu will appear as it is shown in FIG. 9.
FIG. 10 Device Configuration page - Device Configuration tab
The currently installed application
version is displayed here

Configuration
8NXB-KNX KNX Communications Gateway
1. Enter a Device Number for this NXB-KNX unit in the Device Number text field.
2. Click Accept to save your changes.
3. Press Reboot to reboot the NXB-KNX and apply the new Device Number assignment.
Master Connection tab
The options in the Master Connection tab allow you to view and edit connection details for the NetLinx Master to which
this NXB-KNX unit will be connected (FIG. 11). Note that the Master Connection options can also be accessed directly
from the Admin Menu (select Master Connection).
To establish communication between the NXB-KNX and a specific NetLinx Master:
1. Enter the Master’s IP/URL in the Master IP/URL text field.
2. The default Master Port Number assignment is 1319 - do not change this number.
3. Under Authentication Settings, enter the NetLinx Master’s Username and Password (only required if the target
NetLinx Master has Authentication enabled).
4. Press Accept to save changes.
5. Press Reboot to reboot the NXB-KNX. Once rebooted, the NXB-KNX should be in communication with the
Specified NetLinx Master (indicated by a steady blink on the NXB-KNX Status LED).
Security Settings
FIG. 11 Device Configuration page - Master Connection tab

Configuration
9
NXB-KNX KNX Communications Gateway
Select Security Settings from the Admin menu to open the Security Settings page (FIG. 12). Use the options on the page
to specify security options and login information for this NXB-KNX unit.
Enable / Disable Security Settings
Login Information
Use this set of options to specify a Username and Password. These will be required only if one or more of the Security
Settings are enabled.
Click Accept to save your changes. Note that changes on this page take effect immediately.
Click Cancel to cancel any changes.
Logging Into the Configuration Manager (With Security Enabled)
FIG. 12 Security Settings page
Web Security: Click this checkbox to enable Web Security.
When Web security is enabled, a username and password are required to access any
system Web pages.
Default = disabled
Telnet Security: Click this checkbox to enable Telnet Security.
With Telnet Security enabled, a username and password are required to establish a
Telnet or SSH connection.
Default = disabled
Admin Security: Click this checkbox to enable Admin Security.
With Admin Security enabled, a username and password are required to modify any
system configuration item.
Default = disabled
Restore Factory
Defaults: Click to restore all security settings to their factory defaults.
Default = all disabled
Username: Enter the Username that will be required to login to this unit if security is enabled. The
default Username is "administrator".
New Password: Enter a new password that will be required to login to this unit if security is enabled.
The default Password is "password".
Confirm Password: Re-enter the new password in this field.
Restore Factory
Defaults: Click to restore the login information to the factory defaults:
• Default Username = administrator
• Default Password = password

Configuration
10 NXB-KNX KNX Communications Gateway
Login is only required if the Web and/or Admin security options have been enabled on the unit.
1. Click the Login link in the upper-right corner of the initial page (FIG. 5). This invokes the Login popup page
(FIG. 13).
Enter the default login information:
Username = administrator
Password = password
2. Click the Login button.
Once you have successfully logged into the Configuration Manager, the IP Settings page is displayed, and can be edited
as needed.
IP Settings
Select IP Settings from the Admin drop-down menu to open the IP Settings page (FIG. 14). Use the options on the page
to specify network/IP settings for this NXB-KNX unit.
Port Settings
FIG. 13 NXB-KNX Configuration Manager - Login popup page
FIG. 14 IP Settings page
Hostname: Enter a Hostname for this unit (enabled only if DHCP is disabled).
DHCP: Click to toggle DHCP on this unit (default = enabled).
Note that DHCP must be enabled in order for the zero-configuration client (i.e. Bonjour for
Windows) to detect the NXB-KNX on the network.
See the NetLinx Studio (featuring Zero-Config functionality) section on page 5 for details.
IP Address: Enter an IP Address for this unit (enabled only if DHCP is disabled).
Subnet Mask: Enter a Subnet Mask for this unit (enabled only if DHCP is disabled).
Gateway: Enter a Gateway for this unit (enabled only if DHCP is disabled).
Domain Suffix: Enter the Domain Suffix for this unit.
DNS 1, 2, 3: Enter up to three DNS addresses for this unit.
Reboot: Click to initiate a system reboot.
IP Settings changes only take effect after a reboot.

Configuration
11
NXB-KNX KNX Communications Gateway
Select Port Settings from the Admin drop-down menu to open the Port Settings page (FIG. 15). Use the options on the
page to specify various Port settings for this NXB-KNX unit.
The options on this page provide inputs for enabling and disabling of HTTP, HTTPS, Telnet, SSH and FTP ports, and
allow you to change each port number from its standard default assignment.
Clock Manager
Hover the cursor over the Clock Manager option in the Admin menu to open the Clock Manager sub-menu (FIG. 16).
FIG. 15 Port Settings page
Restore Factory Defaults: Click to restore all Port settings to the factory defaults.
HTTP Port Number: • Default = enabled
• Default port number = 80
HTTPS Port Number: • Default = enabled
• Default port number = 443
Telnet Port Number: • Default = enabled
• Default port number = 23
SSH Port Number: • Default = enabled
• Default port number = 22
FTP Port Number: • Default = enabled
• Default port number = 21
Reboot: • Click to initiate a system reboot.
• Port changes only take effect after a reboot.

Configuration
12 NXB-KNX KNX Communications Gateway
Each of the options listed in the sub-menu are also accessible via options on the Clock Manager page (FIG. 17).
Clock Manager - Mode Manager
Select the main Clock Manager entry in the Admin Menu, or select Mode from the Clock Manager sub-menu, and the
Mode Manager page will be displayed (FIG. 18):
The options on the Mode Manager page provide inputs for selecting the current mode of the system time:
FIG. 16 Clock Manager sub-menu
FIG. 17 Clock Manager options
FIG. 18 Clock Manager - Mode Manager page
Time Sync: Use the radio buttons to select either Network Time or StandAlone.
Note: If using StandAlone mode, the time will be valid only until the unit is rebooted. Once
the unit is rebooted, the time will be lost, and will have to be reset.
Note that the Daylight Savings and NIST Servers tabs are enabled only if Network Time is
selected as the mode.
Re Sync Period: Select the desired re-sync period for the clock from this drop-down menu.
Re-sync period options include 5 minutes, 15 minutes, 1, 2 and 4 hours (default =
1 hour).
Timezone: Select the appropriate Time Zone from the drop-down menu.
Date: Use these fields to manually enter today’s date (mm/dd/yyyy).

Configuration
13
NXB-KNX KNX Communications Gateway
Click Accept to save your changes. Note that changes on this page take effect immediately.
Click Cancel to cancel any changes.
Clock Manager - Daylight Savings
Select Daylight Savings from the Clock Manager sub-menu (or from the main Clock Manager page), and the Daylight
Savings Manager page will be displayed (FIG. 19):
Note that this tab is enabled only if Network Time is selected (on the Mode Manager page).
The options on this page allow you to enable and disable daylight savings, and specify daylight savings start and end
times.
Click Accept to save your changes. Note that changes on this page take effect immediately.
Click Cancel to cancel any changes.
Clock Manager - NIST Servers
Time: Manually enter the current time (hh:mm:ss).
FIG. 19 Clock Manager - Daylight Savings Manager page
Daylight Savings: Use these radio buttons to turn daylight savings time on and off (default = Off).
Offset: Use these drop-down menus to specify the amount of time to offset the clock for
daylight savings.
Starts: These options allow you to specify when to start using daylight savings time. Select a
month and time to start from the drop-down menus.
• Select Fixed to start daylight savings at a specific Day, Month and Time (an additional
field for Day is provided when this radio button is selected).
• Select Occurrence to start daylight savings at a specified occurrence (additional
fields for Week of the Month, and Day of the Week are provided).
Ends: These options allow you to specify when to stop using daylight savings time. Select a
month and time to start from the drop-down menus.
• Select Fixed to end daylight savings at a specific Day, Month and Time (an additional
field for Day is provided when this radio button is selected).
• Select Occurrence to end daylight savings at a specified occurrence (additional fields
for Week of the Month, and Day of the Week are provided).

Configuration
14 NXB-KNX KNX Communications Gateway
Select NIST Servers from the Clock Manager sub-menu (or from the main Clock Manager page), and the NIST Server
Manager page will be displayed (FIG. 20):
Note that this tab is enabled only if Network Time is selected (on the Mode Manager page).
The options on this page allow you to select the NIST server that will be queried at each clock synchronization, and
allow you to add more NIST servers to the list.
To add a NIST server, enter the NIST Server Name, IP Address and Location in the fields provided.
To remove a NIST server from the list, click the Remove button.
Click Accept to save your changes. Note that changes on this page take effect immediately.
Click Cancel to cancel any changes.
FIG. 20 Clock Manager - NIST Server Manager page
Only one NIST server is selectable at any given time.