General Information About The Dialog Function - Siemens Sinumerik 840D sl Function Manual

DNC Plant/DNC Cell (FBDN1)
6 Dialog function

6.1 General information about the dialog function

The dialog function (DNC IFC Dialog) is optional. In the case of machines
connected in series, it allows data to be downloaded/uploaded directly from the
CNC machine tool. Dialog programs for requests (created via an editor on the
controller) and responses are exchanged between DNC and the machine server.
These contain the data relevant for the download/upload.
If a machine is configured with the dialog function (see also "Configuration"), the
associated machine server is started when the DNC program is started (unlike in
general mode) and runs until the program is ended. This means that the defined
interface is always occupied.
Note
If the required COM interface is not opened when the DNC program is started,
repeated attempts are made to open it.
For special requests, in addition to the integrated dialog interpreter,
an external dialog interpreter in the form of an ActiveX DII can be integrated.
!
Important
The following controller requirements must be fulfilled:

It must be possible to save at least two NC programs on the controller.

An NC program editor must be available with which an NC program can be
generated.

The alphanumeric characters of the required NC program name must be
available on the machine's operator panel.
If one or more of these requirements is not fulfilled, you can use the dialog
function with an additional input terminal (handheld).
Fig. 6-1: Dialog function with additional terminal
FBDN1/6-132
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Motion Control Information System DNC (FBDN) - 04/10 Edition
05.07