Table of Contents
Advertisement
3.1.2
Building Technologies
Fire Safety & Security Products
Blinking (1 flash)
: missing or insufficient license.
Blinking (2 flashes)
: trouble with the I
Blinking (3 flashes)
: not used
Blinking (4 flashes)
: trouble with the serial/network interface.
Blinking (5 flashes)
: trouble with DLL or RCLOCK file(s).
Blinking (6 flashes)
: Modbus GW trouble.
–
SW trouble.
–
No communication to FS20/FS720 or to the Modbus Master/Client.
–
No NK8237 or FS20/FS720 registers reading (Modbus Master watchdog
expired).
On
: critical/hardware fault.
Right Side LED's
The four LED's on the right side are, from top to bottom:
Name
Function
Com1
Status Com1
Com2
Status Com2
Com3 (not used)
Status Com3
Com4 (not used)
Status Com4
Internal DIP switches
The internal DIP switches (S101) enable a download session via FTP using a
default IP address and the NK823x Web Server.
Internal switch
Functions
DIP switch 1
Default mode/network access: If DIP switch 1 is ON, an FTP connection
occurs by default on the Ethernet 1 at the default IP address 192.168.9.41
and the NK823x Web Server is enabled.
DIP switch 2
Default mode/network access: If DIP switch 2 is ON, an FTP connection
occurs by default on the Ethernet 2 at the default IP address 192.168.10.41
and the NK823x Web Server is enabled.
DIP switch 1 and 2
Default mode/network access: If DIP switch 1 and 2 are ON, an FTP
connection occurs by default on the Ethernet 1 at the default IP address
192.168.9.41 and on the Ethernet 2 at the default IP address 192.168.10.41
and the passwords of the NK823x Web Server are set back to the default
values.
Structure and functions
NK8237 hardware
C bus to I/O modules.
2
Red: RX
Green: TX
3
15
A6V10403182_a_en
30.09.2014
Advertisement
Table of Contents
