7 process data transfer, Process data transfer, 7process data transfer – Lenze E94AYCEP User Manual
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7
Process data transfer
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Lenze · E94AYCEP communication module (POWERLINK MN/CN) · Communication Manual · DMS 6.0 EN · 02/2014 · TD17
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7
Process data transfer
POWERLINK transmits process data, parameter data, configuration data and diagnostic data
between the Managing Node and the Controlled Nodes. Depending on their time-critical behaviour,
the data are transmitted via different communication channels.
• Process data are transmitted via the process data channel.
• Process data serve to control the Servo Drive 9400.
• The transmission of process data is time-critical.
• Process data are cyclically transferred between the Managing Node and the Controlled Nodes
(permanent exchange of current input and output data).
• The Managing Node can directly access the process data. In the PLC, for instance, the data are
directly assigned to the I/O area.
• 1 ... 10 process data words (16 bits/word) can be received:
PDO_RX01 (
/
).
• 1 process data word can be sent:
PDO_TX01 (
/
)
• Process data are not saved in the Servo Drive 9400.
• Process data are e.g. setpoints, actual values, control words, and status words.