Extra chracters inside the recieved program!!

[shahid@cadem]

This problem I got when I was trying to do program transfer in Siemens 820D, The transfer was working without any failure but when I checked the program, i could find some extra characters at the beginning (received program is attached with this thread)

Is there something I need to do with machine controller?? or is it some thing to do with my cable/ connectors?? Please anyone guide me onthis.

Thank you............

[shahid@cadem]

Ooops attached file format was different , am attaching again.

[machine_nut]

Originally Posted by shahid@cadem Ooops attached file format was different , am attaching again.

I have an Hit 8s when I transfer the program to my computer I get the same added character but strip them out before I transfer back to the machine. You need the %MPF at the beginning as in my sample. Hope this helps. BTW I use bobcad for transfers.

Gene

%MPF20
N10 G54 D4T4 ( 6_5NRSFT )
N15 G00 G90 G70 Z0.0
N20 X.675
N25 G01 X0.0 S500 M3 M8 F.003 ( FACE )
N30 G00 X3 Z3
N35 G54 D5T5
N40 G00 G90 G70 X0.0
N45 Z.05
N50 G01 Z-.170 F.002 ( CENTER DRILL )
N55 G00 Z3
N60 X3
N65 G54 D1T1
N70 G00 G90 G70 Z-1.072
N75 X.7
N80 G01 X.625 Z-1.080 F.003
N85 G02 X.625 Z-1.176 I.000 K-.048
N90 G00 X.7
N95 Z.05
N100 X.590 S530 M3 M8 F.0045 ( TURN O.D. )
N105 G01 Z-.635
N110 G00 X.635
N115 Z.05
N125 X.540
N125 G01 Z-.635 S560
N130 X.625
N135 G00 Z.05
N140 X.480
N145 G01 Z-.635 S590
N150 X.62
N155 G00 Z.05
N160 X.420
N165 G01 Z-.500 S620
N170 X.588
N175 G00 Z.05
N180 X.400
N185 G01 Z-.500
N190 X.62
N195 G00 Z.05
N200 X.280
N205 G01 Z0.0
N210 G01 X.367 Z-.06 F.002
N215 Z-.420 (UNDER CUT THREAD RELIEF
N220 X.320
N225 G01 Z-.500
N230 X.65
N235 G00 X3 Z3
N240 G54 D2T2 ( 3/8-16 THREAD )
N245 G00 G90 G70 Z.05
N250 X.65 S300 M3 M8
d K99
( Thread cutting external )
( R20 = Thread pitch R21 = Start X )
( R22 = Start Z R23 = Idle passes )
( R24 = Thread depth R25 = Finish allowance )
( R26 = Run in R27 = Run out )
( R28 = Rough cuts R29 = Infeed angle )
( R31 = End X R32 = End Z )
N99 R20=0.0625 R21=0.375 R22=0 R23=2 R24=-0.048 R25=0.003 R26=0.05
R27=0.01 R28=8 R29=0 R31=0.375 R32=-0.500 L97 P1
N255 G00 X3 S500
N260 Z3
N265 G54 D1T1
N270 G00 G90 G70 Z.05
N275 X.280
N28 G01 Z0.0
N285 G01 X.367 Z-.06 F.002
N290 Z-.420 (UNDER CUT THREAD RELIEF
N295 X.320
N300 G01 Z-.500
N305 X.420
N310 G03 X.480 Z-.530 I0.0 K-.03
N315 G01 Z-.630
N320 X.565
N325 G03 X.625 Z-.660 I0.0 K-.030
N330 G00 X3 Z3
N335 G54 D2T2 ( 3/8-16 THREAD )
N340 G00 G90 G70 Z.05
N345 X.65 S300 M3 M8
d K99
( Thread cutting external )
( R20 = Thread pitch R21 = Start X )
( R22 = Start Z R23 = Idle passes )
( R24 = Thread depth R25 = Finish allowance )
( R26 = Run in R27 = Run out )
( R28 = Rough cuts R29 = Infeed angle )
( R31 = End X R32 = End Z )
N99 R20=0.0625 R21=0.375 R22=0 R23=2 R24=-0.048 R25=0.003 R26=0.05
R27=0.01 R28=8 R29=0 R31=0.375 R32=-0.500 L97 P1
N350 G00 X3
N355 Z3 M5 M9
N360 M0 ( FLIP PART )
N365 G54 D4T4
N370 G00 G90 G70 Z-.019 ( FACE TO LENGTH )
N375 X.7
N380 G01 X0.0 S500 M3 M8 F.004
N385 G00 Z3 X3
N390 G54 D5T5
N395 G00 G90 G70 X0
N400 Z.050
N405 G01 Z-.195 F.002 ( CENTER DRILL )
N410 G00 Z3
N415 X3
N420 G54 D1T1
N425 G00 G90 G70 Z.025
N430 X.590 S530 M3 M8 F.0045 ( TURN .437 O.D. )
N435 G01 Z-.770
N440 G00 X.635
N445 Z.025
N450 X.540
N455 G01 Z-.770 S560
N460 X.625
N465 G00 Z.025
N470 X.457
N475 G01 Z-.770
N480 X.625
N485 G00 Z.025
N490 X.377
N495 G01 Z-.019
N500 G03 X.437 Z-.049 I0.0 K-.03
N505 G01 Z-.770 S590
N510 X.565
N515 G03 X.625 Z-.800 I0.0 K-.03
N520 G00 X2 Z3
N525 G54 D3T3 ( PUT IN GROOVE )
N530 G00 G90 G70 Z-.060
N535 X.5
N540 G01 X.340 F.002
N545 G00 X3
N550 Z3 M5 M9
N555 M2
M02

[shahid@cadem]

Hmm that's a good idea and that's what i have been doing all these days.. but this is not the right solution for that. somehow i need to avoid those junk characters

[shahid@cadem]

I have posted the same in the Siemens forum and next day In got the answer and the answer was

"Set Punch tape format in PC as well as CNC. Then you will get the exact
program with out extra characters.The setting in CNC you can find in
Press Shift key hold it & press Alarm key the Press Data I/O --> Settings. here
you can change it"