LEDs
40/86
netTAP NT 50 | Gateway Devices
DOC091202UM09EN | Revision 9 | English | 2013-02 | Released | Public
© Hilscher, 2010-2013
8 LEDs
8.1 System
LEDs
LED
Color
State
Meaning
Duo LED yellow/green
(green)
On
Operating System running. further diagnostic
see APL LED.
(yel-
low)
On
This state may occur only briefly.
If this LED stays permanently yellow, then a
hardware failure is possible.
(yellow
/green)
Flashing
yellow/green
Error state!
Boot loader active.
SYS
(off)
Off
Power supply for the device is missing or
hardware failure.
LED
Color
State
Meaning
Duo LED red/green
(green)
On
The communication on X2 and X3 is in cyclic
data exchange and the gateway function is
executed
(green)
Blinking with
2 s off,
0,5 s on
netTAP is initialized, but the communication
on X2 is not in cyclic data exchange.
(green)
Blinking with
2 s off,
0,5 s on,
0,5 s off,
0,5 s on,
netTAP is initialized, but the communication
on X3 is not in cyclic data exchange.
(red)
Blinking with
2 s off,
0,5 s on
netTAP is initialized, but the configuration for
the communication protocol on X2 is missing
or has an error
(red)
Blinking with
2 s off,
0,5 s on,
0,5 s off,
0,5 s on,
netTAP is initialized, but the configuration for
the communication protocol on X3 is missing
or has an error
APL
(red)
On
netTAP has detected an error during the ini-
tialization: Missing configuration, error in con-
figuration or internal error
Figure 10: LEDs
