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Fig. 30: "Device" tab
There is one further way of assigning the PROFINET station name. This is comparable with the DIP switches
in the BK9103 and can be carried out via a PLC task. For activation, "Generate Station Name from Control"
must be activated. For clarification, 000 will be appended to the previous tree name (default: "tcpniodevice").
Tree name
This tree name no longer corresponds to the PROFINET station name! The Ctrl WORD of the
PROFINET protocol is used to help assign a name. This means that the number that is entered
(range of values 0 - 255) is appended to the existing station name. In addition, the Ctrl WORD must
be linked to a task. It is subsequently necessary to restart TwinCAT. If, e.g., the task now specifies
a value of 11 for the linked Ctrl WORD, its previous station name will change from, for example,
"tcpniodevice" to "tcpniodevice011". The current tree name remains "tcpniodevice000".
The current station names and the IP configuration used can be checked via the "PROFINET diagnosis" tab.
4. Cycle times
The device can be operated in the minimum cycle time of 1 ms defined by PROFINET!
If TwinCAT is operated in FREERUN mode, care must be taken that the freerun cycle set is no longer than
the PROFINET cycle!
EL6631-0010
Version: 3.4.0
TwinCAT supplement
47
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