Connecting to the NK823x Unit

Scenario: You want to establish the initial connection between Desigo CC and an NK823x Ethernet Port .

 

Reference: For background information, see the reference section.

 

Workflow diagram:

 

 

Prerequisites:

  • The Legacy systems via NK8000 extension is installed and included in the active project.
  • System Manager is in Engineering mode.
  • System Browser is in Management View.

 

Steps:

1 – Install the NK823x

Perform this step to install a new NK823x unit. For information about the electrical wiring, refer to the installation sheet (A6V10238676). A general presentation of the NK823x hardware is provided in NK823x Hardware.

  1. Install the NK823x unit. Available installation options:
  • Mounting of the plastic box on DIN rail.
  • (For CS11 units only): mounting of the mainboard in the control unit housing using card holders and mounting kits.
    The NKA8011-A1 mounting plate (S54461-B4-A1) and NZ8201 mounting kit for CS11 (A6E600185) are required.
  1. Connect subsystems using the standard RS232 interfaces on COM1-COM4.
  1. (Optional) Connect the onboard I/O signals.
  1. Connect the Ethernet port (1 or 2) to the management station. Category 5 or 6 UTP cabling is best suited.
    NOTE: A static IP address is required (DHCP is not supported).
  1. Connect the power supply.

NOTE:
The installation must be carried out by technically qualified personnel.

WARNING

Do not connect or disconnect any device when the device is powered on.

 

2 – Plan the BACnet Network

Before starting the NK8000 configuration on Desigo CC, make sure that the communication network planning is complete and the following BACnet information is available:

  • BACnet addresses (Device IDs) for the NK8000 and the connected units
  • The IP address to assign to the NK823x Ethernet Port
  • BBMD and routing configuration (if the BACnet network includes multiple IP subnets)
  • UDP port number

For more information about BACnet, see BACnet Networks for NK823x DMS Applications.

NOTE:
All BACnet routing mechanisms require a working IP infrastructure that enables proper communication between Desigo CC Server or FEP and the NK8000. Use standard IP tools (for example, the Ping command) to verify this communication.

 

3 – Configure the BACnet Driver for NK823x

You can create one or more BACnet drivers. However, note that the fire system should always use a dedicated BACnet driver.

  • When you work on a FEP station, the Drivers folder must be available in System Browser. You can create it using New .
  • You have an understanding of how your fire BACnet network is structured. For more information, refer to CB0 BACnet Intro.
  1. In System Browser, depending on whether the driver runs (on the server or FEP station), select one of the following:
    - Project > Management System > Servers > Main Server > Drivers
    - Project> Management System > FEPs > [FEP] > [drivers folder]
  1. In the Object Configurator, click New , and select New BACnet Driver.
  1. In the New Object dialog box, enter a description.
    NOTE: The description must be different from that of any other driver on the server or FEP stations.
  1. Click OK.
  • The newly created driver is automatically selected in System Browser.
  1. Select the BACnet tab and open the Settings expander.
  1. In the Management Station section, enter the Instance number: the BACnet Device Identifier to assign to the driver as a BACnet client (default: 9998).
    NOTE: The Instance number must match the BACnet device ID set in the BACnet client configuration of the panel configuration tool.
  1. In the Registered Process IDs section, do the following:
    a. Select the default value 0 and click Remove.
    b. Select the default value 600 and click Remove.
    c. In the entry field, enter 1 and click Add.
  • The selection list only displays the value 1.
  1. In the Extended Operation tab, select the Manager Status property and click Start, to fully activate the driver, or click Start Conf… (start in configuration mode), to run the driver without activating any real connection to the field.
  1. Open the BT BACnet Stack Config expander.
  1. In the BT BACnet Stack Gateway Port Table, click Add and select BACnet/IPV4.
  1. In the Port Properties expander, set the Network Number where your management station is connected (typically =1).
  1. In Port id, set the same value as in Network number.
  1. Select the hardware adapter in the Adapter drop-down list.
    NOTE 1: You must start the BACnet driver in full mode to select the network adapter. If you are configuring offline, you need to postpone this step.
    NOTE 2: The IP address and UDP port (default: 47808) of each physical port have to be unique. If two drivers are assigned to the same Network Interface Card (NIC), you can use the value 47809 for the UDP port of the physical port of the second driver.
  1. (Optional) To configure the station as BBMD, do the following:
    a. In the Port Properties expander, select the BBMD tab and then select BACnet Broadcasting Management Device.
    b. Configure Broadcast distribution table, Foreign device table and NAT Global Address as required by the BACnet network.
  1. (Optional) To configure the station as Foreign Device, do the following:
    a. In the Port Properties expander, select the Foreign Device tab and enable Foreign Device.
    b. Configure IP Address and UPD Port of the Remote BBMD.
    c. (Optional) Adjust the Time to live parameter (default is 1800 sec).
  1. Click Save .

NOTE:
In the BACnet tab, the Threads and Driver Devices expanders are not used.

NOTE:
Multiple BACnet connections can share the same BACnet driver as long as the Device Identifier required for the driver is the same for the connected BACnet networks. If the identifier is different across the networks (that is, if the BACnet client configuration on all danger management networks does not include a common Device Identifier), then you must create separate drivers.

 

4 – Configure the BACnet Network for NK823x
  1. In System Browser select Project > Field Networks.
  1. In the Object Configurator tab, click New , and select New BACnet Network.
  1. In the New Object dialog box, enter a name and description.
  1. Click OK.
  • The newly created network is automatically selected in System Browser.
  1. Click the BACnet tab and open the Network Settings expander.
  1. In the Monitored by driver drop-down list, select the driver you configured above.
  1. Click Save .

Related Topics

NOTICE

Do not use the Block Commands Behavior, to avoid conflicts with the fire system settings.
The block command options should be disabled.

NOTE:
In the BACnet tab, the Auto Discovery Progress, Block Commands Behavior, and Global Object Folder Mapping expanders are not used.
You can ignore the Fire System Options tab.

5 – Create the NK823x Object
  1. In System Browser, select Project > Field Networks > [BACnet Network].
  1. Select the Object Configurator tab.
  1. Click New and select New NK823x.
  1. In the New Object dialog box, enter a name and description.
  1. Click OK.
  • The new NK823x is added to System Browser and automatically selected.
  1. Select the NK8000 tab.
  1. Open the Configuration expander and set the Instance number (the BACnet Device Identifier) of the NK823x.
  1. Click Save.
  • The NK823x is added to the list of the Available NK823x expander in the NK8000 tab of Project > Field Networks.
  • A number of objects, including Ethernet 1, Ethernet 2, COM1 and COM2, are created under the new NK823x object.

 

6 – (Optional) Create the BACnet Protocol under Ethernet 2

By default, when you create the NK823x object, the BACnet Protocol node is created under the Ethernet 1 node. If Desigo CC is connected to the Ethernet 2 port of the NK823x (see Install NK, above) perform the following steps.

  1. Delete the BACnet protocol which was created by default under the Ethernet 1 port:
    a. In System Browser, select Project > Field Networks > [BACnet Network] > [NK823x] > Ethernet 1 > BACnet Protocol.
    b. Select the NK8000 tab.
    c. Click Delete .
  1. If there is no Ethernet 2 port under NK823x, create one:
    a. In System Browser, select Project > Field Networks > [BACnet Network] > [NK823x].
    b.     Select the NK8000 tab.
    c. Click New and select New Ethernet.
  • The newly created Ethernet 2 node is automatically selected under NK823x.
  1. Select the NK8000 tab.
  1. Click New and select New BACnet Protocol.
  • The BACnet Protocol node is added under the Ethernet 2 node.

 

7 – Configure the NK823x Network Settings
  1. In System Browser, select Project > Field Networks > [BACnet Network] > [NK823x] > Ethernet 1 (or Ethernet 2 if the Ethernet 2 port is used).
  1. Select the NK8000 tab.
  1. Open the Configuration expander, and enter the following parameters:
  • IP address: the IP address of the NK823x.
  • Subnet mask: subnet mask of the Ethernet network (default: 255.255.255.0).
  • (Optional) Default gateway: the IP address of the Ethernet subnet gateway.
  • (Optional) NAT support: enable the Network Address Translation (NAT) support.
  • (Optional) NAT IP address: if the NAT support is enabled, the IP address for NAT.
  1. Click Save .
  1. Select Field Networks > [BACnet Network] > [NK823x] > Ethernet 1 (or Ethernet 2) > BACnet Protocol.
  1. Select the NK8000 tab.
  1. In the Configuration expander, set the Network number: the number of the BACnet Network of the DMS system.
    NOTE 1: The registered process ID value (default: 1) needs no setting.
    NOTE 2: In the BT BACnet Stack Config expander, the physical port for the NK823x is automatically set with the default value.
  1. (Optional) Configure the Physical Port field as BBMD or Foreign Device.
  1. Click Save .

 

8 – Connect to the NK823x in Emergency Mode

To connect to the NK823x unit for the first time, you must use a default IP address. To do this requires putting the NK823x in emergency mode.

  1. Depending on the selected Ethernet port on the NK823x, temporarily set the TCP/IP properties of the Desigo CC network adapter to let the computer operate on the following IP address:
    - NK823x port 1: 192.168.9.xx, with xx being for example 1 (not 41)
    - NK823x port 1: 192.168.10.xx, with xx being for example 1 (not 41)
  1. Remove the cover of the NK823x unit (press the 4 white tabs to the rear of the left and right sides of the unit and lift gently).
  1. Set to ON the DIP switch relating to the Ethernet port connected to the management station:
    - DIP switch 1: Ethernet port 1 (default IP address: 192.168.9.41).
    - DIP switch 2: Ethernet port 2 (default IP address: 192.168.10.41).
    For details see NK823x Internal Jumpers and DIP Switches.
  1. Press the Reset button S1.
  • The NK823x restarts.
  1. Check the download LED for the FTP connection: when the FTP connection is open in default mode (default IP address), the LED flashes 3 times. For details see NK823x Status LEDs.
  1. In System Browser, select Project > Field Networks > [BACnet Network] > [NK823x].
  1. In the Extended Operation tab, select Emergency Mode and click Enable.
  • Desigo CC can communicate with the NK823x at the default IP address. You can now check the firmware and kernel versions, and download the NK823x configuration from the management station or from a service computer.
    NOTE: You will set back the DIP switches to OFF and replace the NK8223x cover after the download procedures.

 

9 – Download the First NK823x Configuration from the Management Station
  • The TCP/IP network properties of the management station are set to let the computer communicate on the operating subnet and on subnet 192.168.9.x (for example, with IP address 192.168.9.254 and subnet mask 255.255.255.0).
  • You connected to the NK823x in emergency mode.
  1. In System Browser, select select Project > Field Networks > [BACnet Network] > [NK823x].
  1. Select the NK8000 tab.
  1. (Optional) Open the Configuration expander, and configure the file transfer mode.
    This is set to Use secure download by default (encrypted data transmission on TCP port 20500). If you have a local and safe connection to NK823x, you may want to deselect the check box and apply a faster FTP passive mode. Proceed as follows:
    a. Deselect the check box. Note the warning message about potential vulnerabilities.
    b. Click Save .
  1. Click Download configuration.
  • A confirmation message box displays.
  1. Click OK.
  • A final notification displays.
  • In the Extended Operation tab, the Emergency Mode is automatically set to Disabled.
  1. Turn off the NK823x unit.
  1. On the NK823x mainboard, set back to OFF the DIP switches 1 and 2.
  1. Replace the cover and turn on the NK823x unit.
  1. From Windows, ping the NK823x configured IP address to check the network connection.
  • The management station can communicate with the NK823x at the configured IP address.

Related Topics

 

NOTE:
In case of a distributed, multi-servers system (refer to the SMC documentation), the download can only be performed for NK823x units connected to the local system.