PLC Programming

6 - The Resources
'Extras' 'Show grid'
With this command you can switch on and off the grid in the graphic window. When the grid is
switched on, a check (ü) will appear next to the menu item.
'Extras' 'Y Scaling'
With this command you can change the preset Y scaling of a curve in the trace display. By
doubleclicking on a curve you will also be given the dialog box 'Y-scaling'.
As long as option Automatic is activated, the default scaling will be used, which depends on the type
of the used variable. In case of enumeration variables the enumeration values will be displayed at the
scale. In order to change the scaling, deactivate option 'Automatic' and enter the number of the
respective curve (Channel) and the new maximum (maximum y scale) and the new minimum value
(minimum y scale) on the y axis.
The channel and the former value are preset.
Dialog Box for Setting the Y Scale
'Extras' 'Stretch'
Symbol:
With this command you can stretch (zoom) the values of the Sampling Trace that are shown. The
beginning position is set with the horizontal picture adjustment bar. With repeated stretches that follow
one-after-another, the trace section displayed in the window will increasingly shrink in size.
This command is the counterpart to 'Extras' 'Compress'.
'Extras' 'Compress'
Symbol:
With this command the values shown for the Sampling Trace are compressed; i.e., after this
command you can view the progression of the trace variables within a larger time frame. A multiple
execution of the command is possible.
This command is the counterpart to 'Extras' 'Stretch'.
6.9.2 'Extras' 'Save trace values'
'Save Values'
Use the commands of this menu to save traces (configuration + values) to files resp. to reload them
from files to the project. Besids that a trace can be saved in a file in ASCII-format.
Note: Regard the alternative way of storing and reloading traces by using the commands of menu 'Extras'
'External Trace Configurations' (XML format, *.mon-Datei) !
With this command you can save a Sampling Trace (values + configuration data). The dialog box for
saving a file is opened. The file name receives the extension "*.trc".
CoDeSys V2.3 6-47