Lenze ETC Motion Control - Manual (Page 354)

PLC programming
Network variables
Settings in the global variable list
8
8.5
8.5.2
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354 EDSTCXN EN 2.0
8.5.2 Settings in the global variable list
Create a new global list of variables. Here you define the variables to be
exchanged with other controls. The transfer properties can be defined via
the properties dialog of the variable list.
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You can define the network properties of this variable list by pressing the
button Add network connection. The options have the following meaning:
Network type: As network type UDP must be selected.
Read: Read means that the variable values of one (or several) other controls
will be read.
Write: Write means that the variables of this variable list or sent to other
controls. It is recommended to select only one option for each variable list,
i.e. either only read or only write. If different variables of a project are to be
read and written, use several variable lists: one for reading and one for
writing. It is also recommended that only one control per network will send
the same variable list.
Cyclical transmission: Only valid if "Write" has been enabled. The values will
be sent in the time intervals defined, irrespective of whether they have
changed.
Transmit on change: The values will only be sent if the value has changed or
if the time defined for the minimum interval has expired.