Ethercat (Coe) Communications Settings; Ethercat Secondary Address Settings; Ethercat (Coe) Commands - YASKAWA UAK series User Manual

8.1

EtherCAT (CoE) Communications Settings

This section describes the switch settings necessary for EtherCAT (CoE) communications.

8.1.1 EtherCAT Secondary Address Settings

The EtherCAT secondary address (Station Alias) can be used for identification or for addressing of a device.
The station address is set using the rotary switches S1 and S2.
SERVOPACK
(1) Settings
The combination of the settings of rotary switches S1 and S2 determine the station alias number.
Station alias number = (Setting of S1) × 16 + (Setting of S2)
<Notes>
When you turn the power supply to the SERVOPACK OFF and back ON, the station alias number is set in the
Configured Station Alias Register of the EtherCAT slave controller (ESC).
(2) General Identification Process during Start Up
During start up the master detects the slaves by using the Auto Increment Addressing. The Identity object will
be read from the slave and compared with the values from the master's configuration (which was provided by
the EtherCAT configuration tool before). So the order of the slaves in the network has to be the same as in the
master's configuration. To allow a different network topology a Station Alias is defined.
(3) Example Scenario
With a machining center there might be two identical drives to work in X and Y direction. It might happen that
the cabling order is mixed up after a device replacement. To avoid that the drives receive wrong process data,
an explicit address of the device is used with a Station Alias.
(4) Identification of Devices with Station Alias
The master reads the Station Alias by using the Auto Increment Addressing. The detected Station Alias will be
compared with the values from the master's configuration to get the relation of the network topology and the
configured topology.

8.1.2 EtherCAT (CoE) Commands

For information on the EtherCAT (CoE) commands, refer to
file EtherCAT (CoE) Communications Reference (manual no.: SIEP S800000 95).
Rotary switch (S1)
Rotary switch (S2)
Manufacturer adjustment connector (CN55)
DIP switch (S3)
Panel Display
• Always keep the DIP switch pins (S3) set to OFF.
• Do not use connector CN55 (manufacturer adjustment connector).

8.1 EtherCAT (CoE) Communications Settings

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