3 distributed clocks, 4 append an additional task, Distributed clocks – BECKHOFF EL9800 User Manual
Page 15: Append an additional task, Figure 11: master startup behaviour, Figure 12: append task
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Application Note EL9800
I-13
3.3.3
Distributed Clocks
If t
he slave supports DC the master requires a “sync task” to trigger cyclic events. This could be a
simple task (chapter 3.3.4) or a PLC project. The
“sync task” shall be set to “Auto start” and linked to
an EtherCAT slave.
If the “sync task” is missing the master remains in PRE-OP State. This setting is enabled by default.
Select [Device xx (EtherCAT)] tab [EtherCAT]
[Advanced Settings…]
Figure 11: Master startup behaviour
3.3.4
Append an Additional Task
a. Expand [System
– configuration] right mouse click on [Additional Task] [Append Task]
Figure 12: Append task
b. Insert an output variable to the task: right mouse click on [Outputs] [Insert Variable]
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