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12 | Diagnostics
STOBER
128
05/2019 | ID 442790.01
12.1.1.2
PROFINET state
There are 2 LEDs on the front of the drive controller that provide information about the connection between the IO
controller and device and about the state of the data exchange. This information can also be read out in parameter A271
PN state.
2
1
BF
Run
Fig. 24: LEDs for the PROFINET state
1
Red: Bus error
2
Green: Run
Red LED
Behavior
Description
Off
No error
Rapid flashing
Data exchange with IO controller not
active
On
No network connection
Tab. 134: Meaning of the red LED (BF)
Green LED
Behavior
Description
Off
No connection
Flash
Connection is set up to IO controller
Flash, inverse
IO controller activates DHCP signal
service
Flashing
Existing connection to IO controller;
data exchange expected
On
Existing connection to IO controller
Tab. 135: Meaning of the green LED (run)