Diagnostic LEDs

The LEDs indicate the operating state of the KL6771.

Diagnostic LEDs 1:
Diagnostic LEDs

Meaning of the LED display

LED

Color

Channel

State and significance

On

off

flashes

K-Bus Run

green

1

Lit, either weakly or strongly: K-bus communication OK

No K-Bus communication

K-Bus communication

MP-Bus Error

red

  • Enable input is set
  • PLC program has not started, or MP-Bus function block is not accessing the KL6771

No error

Error detected

Send

green

Toggles when an MP telegram is sent

-

Data is being sent

Receive

green

Toggles when an MP telegram is received

-

Data is being received