Lenze Engineer v2.21 - Manual (Page 180)

Defining the system functionality
Inserting & configuring a machine application
180
Lenze · Engineer · 2.13 EN - 10/2014
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8.13.5.1 Automatic connection
For this purpose, a network object in the »Engineer« and a machine application are required.
• The nodes that are to communicate with each other have to be assigned to the network.
• The applications must be assigned to the machine application.
• It is not necessary to assign an interface or a process data object to the ports. If you nevertheless
do this, your selections will be taken into account.
• The ports are packed together in process data objects for every interconnection that has a start
and at least one end point as the port of an application.
• It is checked whether the end points match with regard to the data size and memory mapping.
With the specification for the creation of the individual ports and the information from the
interconnection in the machine applications and the formation of networks, an attempt is made
during the compilation (menu command ToolsBuild project) to convert the information into
communication objects.
• It is tried to provide for a bus load as low as possible.
• Several ports are assigned to a process data object.
• Automatic connection is supported for "CAN" and "ETHERNET Powerlink" networks.
• If a connection can be established via both "CAN" and "ETHERNET Powerlink", "ETHERNET
Powerlink" is preferred due to the greater band width.
• If one of the interconnection end points (ports) has already been defined to an interface, this
connection is represented via the network assigned. If interfaces are not connected via an
identical network, an error message is output.
• If a port has been assigned to a process data object, this port is only available to this process data
object. No other ports are assigned to this process data object automatically.
8.13.5.2 Manual connection
The manual connection can be effected without a network object in the »Engineer« and without a
machine application.
• Directly assign the ports to the process data objects and set the communication parameters
yourself like COB-ID for CAN.
This procedure is useful for external devices without »Engineer« catalogues and for bus systems if
a network is not provided in »Engineer«.