8 process data transfer, 12 system bus "can on board – Lenze 8400 TopLine User Manual
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12
System bus "CAN on board"
12.8
Process data transfer
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Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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12.8
Process data transfer
[12-5] PDO data transfer from / to the higher-level host system
For transmitting process data, up to four separated process data channels (PDO1 ... PDO4) are
available depending on the device version and software version.
Definitions
• Process data telegrams between the host system and the devices are distinguished in terms of
direction 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 PDOs (RPDOx): Process data object received by a node
• Transmit PDOs (TPDOx): Process data object sent by a node
Note!
Data can only be exchanged via process data objects if the status is "Operational"!
Communication phases/network management