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E84AYCEC communication manual (Ethernet POWERLINK)

Monitoring

52 L EDS84AYCEC EN 3.0 - 09/2012

8 Monitoring

Interruption of Ethernet POWERLINK communication

An interruption of Ethernet POWERLINK communication in the OPERATIONAL state, e.g. by

cable break or failure of the managing node, is detected by the controlled node. The

response to this interruption of communication depends on the following settings:

1. The watchdog monitoring time defined in the managing node is transferred to the

controlled node when the Ethernet POWERLINK communication is initialised.

If the controlled node being in the OPERATIONAL state does not receive valid process

data, the process data are handled according to the setting in C13885

. (The last data

sent by the managing node can either be used or set to zero.)

If communication fails, the controlled node state changes to PRE-OPERATIONAL (see

C13861

) and the red LED "BE" is activated (see Fieldbus status displays ( 55)).

By default, there is no response in the controlled node

2. To cause a response by the controlled node, you additionally have to ...

– set a response of the controlled node (C13880/1

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