Beckhoff CX B110 Series Manual page 21

No. Description
1 Lists the configuration of the sync manager (SM).
If the EtherCAT device has a mailbox, SM0 is used for the mailbox output
(MbxOut) and SM1 for the mailbox input (MbxIn).
SM2 is used for the output process data (outputs) and SM3 for the input
process data (inputs).
If an input is selected, the corresponding PDO assignment is displayed in
the PDO Assignment list below.
2 PDO assignment of the selected Sync Manager. All PDOs defined for this
Sync Manager type are listed here:
• If the output Sync Manager (outputs) is selected in the Sync Manager list,
all RxPDOs are displayed.
• If the input Sync Manager (inputs) is selected in the Sync Manager list, all
TxPDOs are displayed.
The selected entries are the PDOs involved in the process data transfer. In
the tree diagram of the System Manager these PDOs are displayed as
variables of the EtherCAT device. The name of the variable is identical to
the Name parameter of the PDO, as displayed in the PDO list. If an entry in
the PDO assignment list is deactivated (not selected and greyed out), this
indicates that the input is excluded from the PDO assignment. In order to be
able to select a greyed out PDO, the currently selected PDO has to be
deselected first.
3 If the device is intelligent and has a mailbox, the configuration of the PDO
and the PDO assignments can be downloaded to the device. This is an
optional feature that is not supported by all EtherCAT slaves.
PDO Assignment: If this checkbox is selected, the assignment, which was
configured in the PDO assignment list, can be loaded onto the device on
startup. The commands required for this purpose, which have to be sent to
the device, are listed on the Startup tab.
PDO configuration: If this checkbox is selected, the configuration for the
respective PDO is loaded onto the EtherCAT slave.
4 If the device is intelligent and features a mailbox, the PDO information can
be downloaded from device. This is an optional feature that is not supported
by all EtherCAT slaves.
The Sync Unit Assignment function can be set here.
5 Indicates the content of the PDO. If flag F (fixed content) of the PDO is not
set the content can be modified.
6 List of all PDOs supported by this EtherCAT device. The content of the
selected PDOs is displayed below the PDO Content list. The PDO
configuration can be modified by double-clicking on an entry.
Index: PDO index.
Size: Size of the PDO in bytes.
Name: Name of the PDO. If this PDO is assigned to a Sync Manager, it
appears as a variable of the slave with this parameter as the name.
Flags: (F) Fixed content: The content of this PDO is fixed and cannot be
changed by the System Manager. (M) Mandatory PDO. This PDO is
mandatory and must therefore be assigned to a Sync Manager.
Consequently, this PDO cannot be deleted from the PDO Assignment list
SM: Sync Manager to which this PDO is assigned. If this entry is empty, this
PDO does not take part in the process data traffic.
SU: Sync unit to which this PDO is assigned.
CXxxxx-B110 Version: 1.3
TwinCAT tabs
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