KL3444, KL3454 - Product Overview
KL3444, KL3448, KL3454 und KL3458
13
Version: 3.2.0
2.3
Diagnostic LEDs
The four green RUN LEDs and the four red Error LEDs indicate the operating states of the terminal
channels.
Fig. 4: KL3444, KL3454 - Diagnostic LEDs
Meaning of the LED displays
LED
Color
Channel State
on
off
Run1
green
1
normal operation
A watchdog timer overflow has occurred. The
green LEDs go out if no process data are
transferred between the controller and the Bus
Coupler for more than 100 ms.
Run2
2
Run3
3
Run4
4
Error1
red
1
Channel current
greater than 20.8 mA
normal operation
Error2
2
Error3
3
Error4
4
Summary of Contents for KL3444
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