Lenze Drive Server Bus server S7 getting started - Manual (Page 18)

Busserver S7
L
79 Busserver S7 DE/EN 1.0
4.2.5 Automatic drive scanning
If the PLC is connected to the PC and the PLC program has already been transmitted to the PLC, you
can automatically scan the drives configured in the PLC program, unless they have already been
identified during automatic PLC scanning.
1. Select the corresponding PLC from the configuration tree.
2. Ensure that the PLC has been at least once operated in RUN mode with the completed PLC
program. Only in this case, the instance data – i. e. also the PROFIBUS address – has been
saved in the online data blocks!
3. Click Scan to start scanning for drives.
– The scanning progress is indicated in a dialog box.
– The detected drives will be listed as configuration entries in the tree structure below the
selected PLC.
– The scan function automatically detects the number of the data block DB OPC which is used
to exchange data between the PC and the PLC.
Tip!
The S7 configuration tool automatically creates several OPC items for each drive, which allow the
DriveServer to identify the drive automatically.
• For special applications, more OPC items can be added manually. In general, however, the
DriveServer creates the OPC items.
If the Scan at the Server’s Start of Comm. checkbox is activated, the drives configured in the PLC
program will be detected every time the bus server is started.
• This option is useful, if the bus server is connected to a portable PC which is operated at
different systems.
• If the bus server is operated at only one system, this option should be de-activated to speed up
starting the bus server.
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