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8 | Commissioning
STOBER
44
05/2018 | ID 442461.04
8.1.3
Configuring PDO transmission
PDO channels are able to transmit control and status information in realtime as well as actual
and reference values from an EtherCAT master to EtherCAT slaves and vice versa.
PDO communication allows for several PDO channels to be operated simultaneously per
transmission and sending direction. The channels for axes A and B each include a PDO with a
defined sequence of up to 24 parameters to be transmitted. These are free to be configured in
any way. One channel is reserved for FSoE communication and is parameterized automatically.
In order to guarantee error-free communication between the controller and drive controller,
STOBER offers an application-dependent pre-assignment of the channels which can be
changed at any time.
8.1.3.1
Adapting RxPDO
ü
You have configured the global EtherCAT settings.
1. Highlight the relevant drive controller in the project tree and click on the first projected axis
in the project menu >
Wizard
area.
2. Select the
EtherCAT
wizard >
Received process data RxPDO
.
3. Check the default settings and/or configure the process data according to your
requirements.
A225[0] – A225[23], A226[0] – A226[23]:
Parameters whose values are received by the drive controller from the controller. The
position of the parameters provides information about the associated receiving sequence.
8.1.3.2
Adapting TxPDO
ü
You have configured the global EtherCAT settings.
1. Highlight the relevant drive controller in the project tree and click on the first projected axis
in the project menu >
Wizard
area.
2. Select the
EtherCAT
wizard >
Sent process data TxPDO
.
3. Check the default settings and/or configure the process data according to your
requirements.
A233[0] – A233[23], A234[0] – A234[23]:
Parameters whose values the respective drive controller sends to the controller. The
position of the parameters provides information about the associated transmission
sequence.