Beckhoff EtherCAT Technology Section I Manual de usuario descargar pdf (Pagina 47)

Ethernet Physical Layer

Slave Controller – Technology I-27

Table 15: PHY Address configuration matches PHY address settings

Logical Port

Configured address of the PHY

PHY address register value

used by EtherCAT master

PHY address

offset = 0

PHY address

offset = 16

none

4-15

20-31

4-15

none

16-31

0-15

16-31

If the actual PHY address settings differ from the PHY address configuration of the ESC, the

EtherCAT master has to use the actual PHY address mapping, i.e., PHY addresses 1-4 for accessing

the PHYs of logical ports 0-3.

Table 16: PHY Address configuration does not match actual PHY address settings

Logical Port

Configured

address of the

PHY

PHY address register value

used by EtherCAT master

none

0, 5-31

0, 5-13

NOTE: PHY address offset is 0 in this case (recommended).

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Beckhoff EtherCAT Technology Section I Manual de usuario Pagina 47