Start Behavior - WAGO I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-354/000-001 EtherCAT® Fieldbus Coupler, ID Switch
More information about the LED Signaling
Read the detailed description for the evaluation of the displayed LED state in the
section "Diagnostics" > ... > "LED Signaling".
7.2

Start Behavior

When using the EtherCAT
the local bus boot process, the EtherCAT
slave is then in INIT status.
The master can now switch the slave into PREOP status. If the request for
PREOP status occurs before the local bus initialization is completed, then the
transition from INIT status to PREOP status is delayed until the local bus
initialization has been fully and successfully completed. In the event of an error in
the local bus initialization, the transition from INIT status to PREOP status is
denied with a corresponding AL status code.
Additional information about AL status codes!
A list of the AL status codes and their meanings can be found in the
appendix, "AL Status Codes" chapter.
Following a successful local bus initialization, the creation of the process image is
determined and the corresponding objects with the terminal input and output data
as well as the objects with the process data mapping (RxPDO's and TxPDO's)
are entered in the Object Dictionary.
The process data architecture can only be redetermined by switching the fieldbus
coupler operating voltage off and on again. If the terminal architecture is changed
during operation, the fieldbus coupler enters an error state that can only exited by
switching the fieldbus coupler operating voltage off and on again.
After the local bus initialization has been successfully completed, every other
status transition from INIT to PREOP is accepted without delay, even if the local
bus is not running due to an error.
®
fieldbus coupler, after the self test and the initiation of
®
slave stack is started in parallel. The
Function Description
Manual
Version 1.2.1
67