LED displays

LED displays 1:

Ethernet interface X001

Interface X001	Ethernet (CX8093)	Meaning
LED green	on	Link present
LED yellow	flashing	Activity

Ethernet interface X101/102

Interface X001/X002	Ethernet (CX8093)	Meaning
LED green	on	Link available/activity
LED yellow	is not used	-

LED coupler

Labelling	Meaning	Colour	Meaning
RUN	Indicates the status of the coupler	red	TwinCAT is in "stop" mode
Green	TwinCAT is in "run" mode
Blue (If red DIP switch 1 is set to on when starting the coupler)	TwinCAT is in "config" mode

Labelling

Meaning

Colour

Meaning

RUN

Indicates the status of the coupler

red

TwinCAT is in "stop" mode

Green

TwinCAT is in "run" mode

Blue

(If red DIP switch 1 is set to on when starting the coupler)

TwinCAT is in "config" mode

LED PN *	PROFINET Status		Meaning
LED PN *	green	red	Meaning
Power On	off	200 ms flashing	Start-up phase
No name	200 ms flashing	off	no PROFINET name
No IP	1 sec off, 200 ms on	off	No IP address
Run	on	off	OK

LED DIAG *	PROFINET diagnosis		Meaning
LED DIAG *	green	red	Meaning
Flashing, PN controller identification	500 ms	500 ms	The PN controller is transmitting an identification signal
No AR established	off	200 ms flashing	The establishment of a connection with the controller has not been completed
Device is in IO exchange Error display of Outputs CR is set to module differences	1 s off 200, ms on	off	Problem with establishment of a connection or nominal and actual configuration differ
Device is in IO exchange but provider is in stop	200 ms	off	Coupler is in data exchange, but PLC is in stop
Device is in IO exchange	on	off	OK

* ) If a virtual PROFINET device has been projected, this is also signalled by the LEDs in the event of an error. The real device always has the higher priority; if it is OK the status of the virtual device is displayed.

LED power supply terminal


Operation with E-bus terminals	Operation with K-bus terminals

Display LED	Description	Meaning
1 Us 24 V (top left, 1st row)	CX80xx supply voltage	connected to -24 V
2 Up 24 V (top right, 1st row)	Power contacts supply voltage	connected to -24 V
3 L/A (left centre, 2nd row)	EtherCAT LED	flashing green: EtherCAT communication active connected to E-bus / no data traffic not connected to E-bus
4 K-BUS RUN (right centre, 2nd row)	K-bus LED RUN	Lights up green: K-bus running, everything OK
6 K-BUS ERR (bottom right, 3rd row)	K-bus LED ERR	Lights up red: K-bus error - see K-bus error code

K-bus error code

Error code	Error code argument	Description	Remedy
Persistent, continuous flashing		EMC problems	Check power supply for undervoltage or overvoltage peaks Implement EMC measures If a K-bus error is present, it can be localised by a restart of the coupler (by switching it off and then on again)
3 pulses	0	K-bus command error	No Bus Terminal inserted One of the Bus Terminals is defective; halve the number of Bus Terminals attached and check whether the error is still present with the remaining Bus Terminals. Repeat until the defective Bus Terminal is located.
4 pulses	0	K-Bus data error, break behind the Bus Coupler	Check whether the n+1 Bus Terminal is correctly connected; replace if necessary.
4 pulses	n	Break behind Bus Terminal n	Check whether the Bus End Terminal 9010 is connected.
5 pulses	n	K-Bus error in register communication with Bus Terminal n	Exchange the nth bus terminal
6 pulses	0	Error at initialisation	Exchange Bus Coupler
	1	Internal data error	Perform a hardware reset on the Bus Coupler (switch off and on again)
	8	Internal data error	Perform a hardware reset on the Bus Coupler (switch off and on again)
7 pulses	0	Process data lengths do not correspond to the configuration	Check the Bus Terminals for the configured Bus Terminals
7 pulses	1..n	K-bus reset failed	Check the Bus Terminals