Mitsubishi Electric MELDAS C6 Programming Manual page 220

13. Program Support Functions
(Example 1) Example of workpiece position measurement
Main program
G65 P9031 X100. Y100. Z-10. F200;
Skip input
Start point N4
N3
Z #103
N8
N5
Y
#101
X
#101 X axis measurement amount
#102 X axis measurement amount
#103 Measurement linear segment
amount
#5001 X axis measurement start point
#5002 Y axis measurement start point
#5061 X axis skip input point
#5062 Y axis skip input point
(Example 2) Reading of skip input coordinates
An example to measure the distance from the measured reference point to the
workpiece edge is shown below.
Argument
<Local variable>
F(#9)
X(#24)100.000
Y(#25)100.000
Z(#26) -10.000
To subprogram
<Common variable>
#101 87.245
#102 87.245
#103 123.383
#102
N1 G91 G28 X0 Y0;
N2 G90 G00 X0 Y0;
N3 X0Y-100.;
N4 G31 X-150. Y-50. F80;
N5 #111=#5061#112=#5062;
N6 G00 Y0;
N7 G31 X0;
N8 #121=#5061#122=#5062;
N9 M02;
#111 = −75. + ε #112 = −75. + ε
#121 = −25. + ε #122 = −75. + ε
ε is the error caused by response delay.
(Refer to the section on the skip function for details.)
#122 is the N4 skip signal input coordinates as there is no Y command at N7.
13.5 User macro specifications
O9031
200
N1 #180=#4003;
N2 #30=#5001 #31=#5002;
N3 G91 G01 Z#26 F#9;
N4 G31 X#24 Y#25 F#9;
N5 G90 G00 X#30 Y#31;
N6 #101=#30-#5061 #102=#31-#5062;
N7 #103=SQR [#101∗#101+#102*#102] ;
N8 G91 G01Z-#26;
N9 IF [#180 EQ 91] GOTO 11;
N10 G90;
N11 M99;
N1 G90/G91 modal recording
N2 X, Y start point recording
N3 Z axis entry amount
N4 X, Y measurement (Stop at skip input)
N5 Return to X, Y start point
N6 X, Y measurement incremental value
calculation
N7 Measurement linear segment calculation
N8 Z axis escape
N9, N10 G90/G91 modal return
N11 Subprogram return
-150
-X
212
Y X
-75 -25
-50
-75
-100
-Y
Skip signal