Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 271)

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DMS 4.1 EN 03/2011 TD29 269
12.11.2 Scan
Devices commands - Scan
The command Scan For Devices for scanning the hardware environment of the
currently connected PLC is provided in command category 'Devices'.
By default it is part of the 'Project' menu. If necessary, the menu structure can be re-
configured via the Customize dialog.
Scan For Devices
This command (category Devices) starts a scan of the hardware environment of the
currently connected PLC. This means to detect and view the hardware components in a
dialog and to enable the user to directly map them in the device tree in the project.
How the scan-functionality works, depends on the network type. The whole
functionality might be implemented in the PLC, which then requires that you log in
before executing the Scan command, or a library might be necessary which must be
included in the project.
In each case a connection to the PLC will be established automatically before a scan
function is executed, and afterwards will be closed again also automatically. Thus the
gateway connection must be configured and the PLC must be running before a scan
can be done. If the scan functionality completely is implemented in the PLC, a scan can
be done without further preparations. If scanning needs library functions, at least once
a login must have been done before the first scan, in order to get the library
downloaded. If this has not been done, the user at his first trial to scan will be
prompted to load the project (and library) to the PLC.
The command always refers to the controller currently selected in the device tree. For
example an already inserted PROFINET IO Master module can be selected and via the
scan command its slave devices and IO modules can be detected.