Siemens NK8235

Maintenance and diagnostics
Correcting communication failures
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Building Technologies
A6V10062437_a_en
Fire Safety & Security Products 30.06.2013
Searching and marking NK82xx branches by name
9.6 Correcting communication failures
9.6.1 NK82xx generated a fault
If an NK82xx generates a fault, there may be one or more causes. The problem may
be in the NK82xx unit, or in the NK82xx connection to the DMS.
Check the NK82xx
Check power, vital function, and diagnostic state on the respective LED, which is
located on the front panel of NK82xx.
Note: If connection to NK82xx is lost, you might reset the device back to factory
configuration by setting DIP-switch 2 to ON.
Check network connections
 LAN
Diagnostic information about the LAN state can be obtained from different layers:
Link state LED of Repeater or Ethernet adapters gives you information about the
physical connection and the speed of the Ethernet link.
1) Select Start > Programs > Accessories > Command Prompt.
2) Choose from the following commands:
Command Meaning
ipconfig /all Shows comprehensive information about the local PC’s IP configuration (for
example, the IP address)
ping n.n.n.n Lets you check the communication with an IP network participant (“n.n.n.n” is the
IP address to check)
ping n.n.n.n –t Lets you continuously check the communication with an IP network participant
(“n.n.n.n” is the IP address to check)
Netstat Provides you the information about all established TCP/IP connections
arp -a Displays the physical address translation table