5
01/2008 Parameters operating area
5.8 Display system variables
5
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition 5-249
Start log
or
$A_PROTO=1
You can start logging by pressing the "Start log" button or with the
system variable $A_PROTO=1 in the part program.
Stop log
or
$A_PROTO=0
It is stopped with the "Stop log" button or the system variable
$A_PROTO=0.
After stopping, the log memory is automatically loaded to a file.
Manage
log
The button "Manage log" calls up a dialog box in which you can
• Save a new log to a file or
• Reselect a log that is already saved.
Graphic
log
With the "Graphic log" button you call up a window in which the
changeover time of the variables is displayed as a curve.
Measuring times are output along the horizontal axis
and variable contents are output along the vertical axis. A graphic log
window may contain several curves, the appropriate variable name is
displayed at the top left of each curve.
Graphic log
+ X 900.000 mm 0.000
+ Z 230.000 mm 0.000
Set
marker
<<
$AA_IW[1]=1002.000
t[ms]=2000
$A_OUT[3]=0
Set marker
The "Graphic log" display provides you with a zoom function in which
a section that you have already selected can be expanded to cover
the entire display surface.
With the "Set marker" softkey a vertical cursor line appears, which is
moved with the cursor left and cursor right keys.
The softkey text then changes from "Set marker" to "Set marker2" and
from "Set marker2" to "Expand".
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