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9.6.2
Building Technologies
CPS Fire Safety
NK823x BACnet Protocol
The fire system connection to the NK8237 IEC Gateway makes use of the BACnet
protocol over IP. In the BACnet/IP communication with the fire units, the NK8237
IEC Gateway acts as a BACnet client. The NK823x configuration in Composer
includes the definition of the IP addressing and BACnet/IP connectivity. In both
cases, the NK823x configuration must match with what expected by the fire
system.
Configuring the NK823x IP addressing
1. If this connection requires a separate LAN port, add a second Ethernet node:
a. Select the NK823x node.
b. In the toolbar on the left, select the Ethernet #2 icon
A new Ethernet node is created under the NK823x node.
2. Select the NK823x node and expand the subtree.
3. Select the Ethernet node to be used for the BACnet connection.
4. Select the Node tab.
5. In the form on the right pane, enter:
–
IP address of the NK823x.
–
Subnet mask, typically related to the fire network access. See also the
Routing Tables section that follows.
–
Default gateway, typically the GAP station IP address. Leave it to =
"0.0.0.0", if not used. See also the Routing Tables section that follows.
–
If NAT (Network Address Translation) is used on the network, enable it
and enter the external IP address (NAT address) of the NK823x.
Note: You can ignore the step above if the Ethernet port is shared and the IP
settings was already defined.
Routing Tables:
NK823x can handle a static routing table to address multiple subnets via IP
routers (for example, SAFEDLINK GAP stations). Any access to subnets that is
not handled by the NK323x
For more information, see the guide for DMS8000 Connectivity Network
(A6V10359485).
Configuring the Routing Tables
To configure the routing table, do the following:
1. Select the NK823x node and then the Routing tab.
2. Click the Add button to add a new route.
3. Configure the following parameters:
Configuring the Fire network
Default gateway
must be defined as routing table.
Configuration
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25.01.2019
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