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8 process data transfer, Process data transfer – Lenze E94AYCCA User Manual

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EDS94AYCCA EN 5.0 - 06/2012

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E94AYCCA communication manual (CANopen®)

Process data transfer

8

Process data transfer

[8-1]

PDO data transfer from / to the higher-level host system

For the transfer of process data, four separated process data channels (PDO1 ... PDO4) are

available.

Definitions

 Process data telegrams between the host and the devices are distinguished as follows:

– Process data telegrams to the device (RPDO)
– Process data telegrams from the device (TPDO)

 The CANopen process data objects are designated as seen from the node's view:

– Receive PDO (RPDOx): process data object received by a node
– Transmit PDO (TPDOx): process data object transmitted by a node

Note!

Data can only be exchanged via the process data objects if the state is

"Operational".

Communication phases / network management

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