Lenze EtherCAT control technology - Manual (Page 154)

Control technology | EtherCAT communication manual
Diagnostics
Error scenarios
154
L
DMS 3.1 EN 01/2011 TD17
11.6.11 Logbook messages: "Slave at index X missing" with "Cyclic command WKC error ..."
The "Cyclic command WKC error" message is entered cyclically every 5 seconds into the
logbook of the industrial PC until the error is not active anymore.
...
xxxxx DD-MM-YYYY hh:mm:ss
EtherCAT Master Stack SLV: Cyclic command WKC error on LWR - Address: 0x10000 -
WKC act/set=2/7
Communication on bus systems
Error
...
xxxxx DD-MM-YYYY hh:mm:ss
EtherCAT Master Stack SLV: Slave at index X missing. State req/act=Operational/
UNKNOWN
Communication on bus systems
Error
...
Causes Remedies
The bus cable between two EtherCAT nodes has been
unplugged.
1.Stopping the PLC program: Execute the menu
command OnlineStop.
2.Plug in the bus cable.
3.Execute the SMC_ResetAxisGroup function block or a
Bus restart ( 139) .
(For this, see also Logbook message: "Cyclic command
WKC error ..." ( 156) .)
The node at position X is deenergised. Switch-on the node and execute the
SMC_ResetAxisGroup function block or a Bus restart
( 139) .