Lenze PLC Designer ApplicationTemplate (PLC Designer R3-x) - Manual (Page 49)

Lenze · ApplicationTemplate · 1.3 EN - 04/2013
49
Working with the ApplicationTemplate
Mapping the actual machine structure in the »PLC Designer«
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2. Change to the PDO Mapping tab.
By default, the PDO mapping is optimised for the corresponding application. It is possible
to change this mapping (set checkmark). Due to the limited bandwidth of the CAN bus, this
is only sensible in special cases. The PDO properties are pre-assigned sensibly as well and
should not be changed.
By double-clicking a single PDO, you can see its transmission properties.
• The Transmission Type "cyclic - synchronous (type 1-240)" and the information
at which sync the PDOs are to be transmitted must not be changed.
• The settings of the Inhibit time and the Event time are not evaluated.
• Confirm the settings with OK.
The CANopen I/O Mapping tab serves to assign PLC variables to the process image.
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Note!
Bus operation without CAN synchronisation
• The controller always transmits asynchronous PDOs from an unsolicited task in an
event-controlled way. To achieve a time-controlled transmission of asynchronous
PDOs by the controller, you must assign the CAN master to a cyclic task.
• The controller does not support any monitoring times for asynchronous receipt PDOs.
These monitoring times have to be set in the devices.