ACC-72EX User Manual
Diagnostics
114
PROFINET IO
– Controller – OPT90
The following table describes the meaning of the LEDs for the comX Real-Time Ethernet communication
modules (COMX 100CA-RE/ COMX 100CN-RE) when the firmware of the PROFINET IO-RT
Controller protocol is loaded to the comX communication module:
SF LED (COM0)
Color
State
Meaning
Red
On
(together with BF „red ON“) No valid Master license
Red
Flashing cyclic with 2Hz
System error: Invalid configuration, Watchdog error or internal error
Red
Off
No error
BF LED (COM1)
Color
State
Meaning
Red
On
No Connection: No Link or (together with SF „red ON“)
No valid Master license
Red
Flashing cyclic with 2Hz
Configuration fault: not all configured IO-Devices are connected.
Red
Off
No error
LINK LED
Green LED on ETH0 / ETH1 connectors:
Color
State
Meaning
Green
On
A connection to the Ethernet exists
Green
Off
The device has no connection to the Ethernet
ACT LED
Yellow LED on ETH0 / ETH1 connectors:
Color
State
Meaning
Yellow
Flashing
The device sends/receives Ethernet frames