LED displays

LED displays 1:

Ethernet interface X001

Interface X001	Ethernet (CX805x)	Meaning
LED green	on	Link present
LED yellow	flashing	Activity

CAN master LEDs of the CX8050

Labeling	Meaning	Color	Meaning
TC	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
CAN	Shows the CAN status	Green on / Red off	CAN is OK
		Green off / Red on	CAN in bus off
		Green 200 ms / Red 200 ms	CAN Warning
		Green off / Red on	CAN not configured
TX/RX	Indicates CAN errors	Green on / Red off	All nodes have NodeState = 0
		Green 200 ms / Red 200 ms	All boxes in OP state, but the tasks have not yet started
		Green off / Red 200 ms	Not all nodes in OP
		Green off / Red on	No boxes configured

CANopen slave LEDs of the CX8051

Labeling	Meaning	Color	Meaning
TC	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
CAN	Shows the CAN status	Green on / Red off	CAN is OK
		Green off / Red on	CAN in bus off
		Green 200 ms / Red 200 ms	CAN Warning
		Green and red flashing rapidly	Baud rate search active
		Green off / Red on	CAN not configured
TX/RX	Indicates CAN errors	Green on	Everything OK
		Green 200 ms / Red 200 ms	All boxes in OP state, but the tasks have not yet started
		Green off / Red 200 ms	Not all boxes in OP
		Green off / Red on	No boxes configured

Power supply terminal LEDs


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 codes

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 localized 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