BECKHOFF EL7037 - Manual (Page 89)

Commissioning
„Online“ tab
Fig. 99: „Online“ tab
State Machine
Init This button attempts to set the EtherCAT device to
the Init state.
Pre-Op This button attempts to set the EtherCAT device to
the pre-operational state.
Op This button attempts to set the EtherCAT device to
the operational state.
Bootstrap This button attempts to set the EtherCAT device to
the Bootstrap state.
Safe-Op This button attempts to set the EtherCAT device to
the safe-operational state.
Clear Error This button attempts to delete the fault display. If an
EtherCAT slave fails during change of state it sets an
error flag.
Example: An EtherCAT slave is in PREOP state (pre-
operational). The master now requests the SAFEOP
state (safe-operational). If the slave fails during
change of state it sets the error flag. The current state
is now displayed as ERR PREOP. When the Clear
Error button is pressed the error flag is cleared, and
the current state is displayed as PREOP again.
Current State Indicates the current state of the EtherCAT device.
Requested State Indicates the state requested for the EtherCAT
device.
DLL Status
Indicates the DLL status (data link layer status) of the individual ports of the EtherCAT slave. The DLL status
can have four different states:
EL70x7 89 Version 1.0