3 boot-up phase, 4 disconnect nodes from the axis bus, Boot-up phase – Lenze 8400 TopLine User Manual

Page 843: Disconnect nodes from the axis bus, 14 axis bus

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Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14

843

14

Axis bus

14.2

Data transfer axis bus

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Related topics:

"Master/slave" function

( 852)

14.2.4.3

Boot-up phase

After the devices (master and slave) are switched on and initialised, first a boot-up phase is

executed. In this phase, the master already communicates on the axis bus with the slaves which do

not participate yet in the data exchange.
Only when all nodes have been synchronised at the axis bus (synchronisation of the slaves with the

axis bus IO is compulsory) and the deceleration time set in

C02431/1

has been expired, all nodes

change to the "PDO active" bus state.

14.2.4.4

Disconnect nodes from the axis bus

The setting of the axis bus address (

C02430/1

) to "0" serves to switch off the corresponding node

dynamically from the axis bus.

• The node does not participate in the data exchange anymore.

• The axis bus LED "AB-STATE" of the node is switched off.

C02435

displays the axis bus status "4: Boot-up" for the node.

• The synchronisation and the detection and report of errors via the axis bus IO cable continues

to take place.

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