PN55 G27 <RETRCT,TOOLNO=1001>

Transcription

1 % ( r AJL :01:11 07:40:49 ) N5 ( ** TOOL*.fH 2,CENTRE DRILL,LEVEL 11 ** ) JM10 T1001 M06 K15 M40 N20 GOO G90 G94 XO Y60. B354.5 S1000 M03 N25 F50. M17 <ZR=100.> <Z02.> <ZD=2.> N30 <ZA= > N35 X Y N40 Z N45 G80 N50 GOO PN55 G27 <RETRCT,TOOLNO=1001> N60 GOO N65 N70 B264.5 N75 X <ZA > Y N80 Z N85 G81 N90 GOO Y N95 G81 N100 GOO N105 G27 <RETRCT,TOOLNO=1001> N110 GOO N.i15 B144.5 N120 <ZA= > N125 Z N130 G81 N135 GOO Y N140 G81 N145 GOO N150 G27 <RETRCT,TOOLNO=1001> N155 GOO N160 B24.5 N165 <ZA* > N170 Z N175 G81 N180 GOO Y N185 G81 N190 GOO N195 G27 <RETRCT,TOOLNO=1001> N200 GOO N205 ( ** TOOLPATH 3,DRILL 6.5 DIA HOLES,LEVEL 12 ** ) :N210 T2002 M06 N215 S600 MO3 N220 F36. M17 <ZR«100.> <ZC*2.> <ZD*4.> N225 GOO G90 G94 X Y B24.5 N230 <ZA > N235 Z N240 G81 N245 GOO Y N260 G27 <RETRCT,TOOLNO-2002>

2 N280 Z N285 GP1 N290 GOO Y N295 G91 N300 GOO N305 G27 <RETRCT,TOOLNO=2002> N310 GOO N315 B144.5 N320 <ZA J> N325 Z N330 G81 N335 GOO Y N340 G91 N345 GOO N350 G27 <RETRCT,TOOLNO=2002> N355 GOO N36Q ( ** TOOLPATH 4,DRILL 8 DIA HOLES,^ 'VEL 13 ** ) ;N365 T3003 M06 N370 S400 M03 N375 F28. M17 <ZR=100.> <ZC=2.> <ZD=4.> N380 GOO G90 G94 X Y B144.5 N385 <ZA i> N390 Z N39S G81 N400 GOO N405 G2 <RETRCT,TOOLNO=3003> N410 GOo N415 B24.5 N420 <ZA > N425 Z N430 G81 N435 GOO N440 G27 <PETRCT,TOOLNO=3003> N445 GOO N450 B264.5 N455 <ZA= > N460 Z N465 G81 N470 GOO N475 G27 <RETRCT,TOOLNO=3003> N480 GOO N485 ( ** TOOLPATH 5,DRILL 6.2 DIA HOLE,LEVEL 14 ** :N490 T4004 M06 N495 GOO G90 G94 X Y60. B354.5 S600 M03 N500 F36. M17 <ZR*iOO.> <ZC 2.> <iu=4.> N505 <ZA* > N510 X Y N515 Z N520 G81 N525 GOO N530 C27 <RETRCT,TOOLNO*4004> N535 GOO N540 G27 <RETRCT> N545 M30

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4 112 The BTR Fur routine is written in GWBASIC. The routine is called by the following MS-DOS batch file called "PUNCH" s ECHO OFF CLS GWBASIC PUNCH COPY C:\POST\PUNOUT C:\BTR\AA132.NCP COPY C:\POST\PUNOUT B:\AA132 When the NC programmer enters the word "PUNCH" into the PC containing the BTR Database and Utilities, the above MS-DOS batch file executed. The first, two lines simply clear the screen. The third li.i3r (GWBASIC PUNCH), envokes the GWBASIC BTR Punch routine. The routine itself will be explained further on in this section, but the method used to actually copy files onto the BTR Database, copy files onto floppy disc, print files and to convert files to the correct format needs to be explained here As mentioned in section 7.2, the original NC part program may originate from one of thre^* different sources. Figure J.l illustrates the process the NC part program needs to gc through depending on it's source The GWBASIC BTR Punch routine will edit the MS-DOS batch file that invoked it and insert the relevant DOS commands to do the converting, copying and printing according to the source of the NC part program. When the G* ts'c BTR Punch routine terminates, the MS-DOS batch file will continue and perform the now revised commands, (line 4 onwards), placed

5 SOURCE mpbr»pe SOURCE : POST PROCESSORS FILE ON HARO CISK AS : C :\F O S l\p U N O J T ACTUAL ASCII NC M R T PROORAIk IN CORRECT FORMAT THAT CAN BE USED ON SHOP FLOOR FLOPPY DISK PRINTER Fig J.1 NC Part Program Sequence during BTR Punch Routine there by the GWBASIC DTR Punch routine during execution of the previous command. For example, assume the NC programmer s*. cified the following : File Name to Auxiliary Systems Store on Dbase Copy to Floppy AA289 at $s is yes Print required

6 M M The GWBASIC BTR Punch routine would edit the MS-DOS batch file that invoked it and alter it as follows : 114 ECHO OFF CLS GWBASIC PUNCH CNVRT_UV COPY C:\POST\PUNOUT C:\BTR\AA289.NCP COPY C:\POST\PUNOUT B:\AA2E9 PRINT C:\POST\PUNOUT ECHO ON CLS During execution of line three above, the lines 4 to 9 are inserted according to the process described in figure J.l and the input supplied by the NC programmer. 3fc - The GWBJ-.3IC BTR Punch routine program code appears in Appendix Lines 1C-20 s This section of the code displays prompts on the screen and allows the user to specify the source of the NC part program. If the source is the tape reader, the Asynchronous Communications Subroutine, (lines ), is invoked. Lines * Phis section prompts the user to specify a file name in order to store the NC part program in the The filename is checked to see if it is the a?.-*'- -Q?. I required 5 digits long. If the filename already exists on the database, the user is prompted for confirmation t< overwrite the existing file. 1! '

7 Lines * Allows the user to option. Lines ft * Allows the user to sj ULnea * This section edits the MS-DOS batch fxle "PUNCH.BAT" according to the input supplied by the user. The lines 790 and 800 terminate this GWR\SIC program. Lines * This section serves no purpose but to separate the Asynchronous Subroutine from the rest of the code. The routine is a standard GWBASIC RS-232 communication subroutine for operation under MS-DOS. Lines : This section prompts the user tor trv format of the paper tape. (Either ASCII RS-358 or EIA RS Wh' 244-A). Lines Lines * This section used further on. Line 1120 * Specifies the line number of the

8 statement of the GWBASIC COM trap routine associated with channel number 1. Lines * Opens and initializes communications channel 1 with the speed of 4800 bits per second and even parity and 7 data bits or odd parity and 8 data bits depending on the format of the paper tape. (See. line 1010). \ i ' "to.1 Lines * Opens a file called "READERIN". Charact' rs received from the tape reader are placed in this file. Line 1170 s Checks to see if characters are pending on the receive buffer. If no characters are pending, contij1 is transferred to st* -emet»t 1240, otherwise to the following statement (line 1180). Line 1180 * Checks if the number of characters in the receive buffer is greater than 50. If the number is greater than 50, it sends an X0FF$ characte- to the channel to stop transmission. Lines : If the number of characters in the receive buffer is less than or egual to 50, characters ane read from the receive buffer and written to the file. -v: v - B B H H v READERIN ' V 9 K. Lines 121C-1230 : Checks if there are still characters on - * 'C--

9 1180. If not, an X0N$ character is sent (if an X0FF$ was sent before) and control is transferred to statement Lines s A FOR/NEXT loop ia activated to wait until characters arrive in the receive buffer. If no character arrives within the specified number of iterations, control is transferred to statement 1270 which terminates the session, if characters do arrive, control is transferred to statement Lines : These lines close the file "READERIN and transfer control to line 1400 to terminate the session. Lines t These lines form the COM trap routine. Statement 1320 checks if characters are pending in the - receive buffer. If no character is pending a RETURN is executed. If two characters are pending, the transmission f characters is enabled, (statement 1360) and the routine is exited (RETURN). Two characters in the receive buffer means that both an XON$ and an XOFF$ have jeen received. If only one character is pending the transmission of characters is disabled (if this character is XOFFS} or

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11 * LOCATE 2,28 20 COLOR 0,4 30 PRINT " BTR PUNCH ROUTINE 40 COLOR 7,0 50 LOCATE 6,6 60 COLOR 7,1 70 PRINT "DO YOU WANT TO PUNCH A UNIVAC FILE U 80 LOCATE 7,6 90 PRINT " OR A POST PROCESSOR FILE - P 100 LOCATE 8,6 110 PRINT " OR READ IN FROM THF. TAPE READER LOCATE 8, PRINT "IP]~ LOCATE 8, INPUT "[",C$ 160 IF C$ = "T" THEN GOSUB IF C$ * "t" THEN GOSUB COLOR 7,0 190 GOTO PLAY "T P8 L6 E-" 210 LOCATE 10, COLOR 20,0 230 PRINT " INVALID FILENAME O 250 LOCATE 10,6 260 PRINT "ENTER FILENAKE TO STORE ON HARD DISC 270 LOCATE 10, INPUT ">",A< 290 IF LEN(A$) <> 5 THEN GOTO ON ERROR GOTO FC = C:\BTR\"+A$+".NCP" 120 OPEN "I",#1,F$ 330 CLOSE #1 340 PLAY "T P8 L6 E- 330 LOCATE 10, COLOR 4,0 370 PRINT " OVERWRITE? [Y] 380 LOCATE 10, INPUT "[",E$ 400 IF E$-"N" THEN GOTO COLOR 7,0 420 LOCATE 10, PRINT " 440 LOCATE 12,6 450 COLOR 7,1 460 PRINT "DO YOU WANT A PRINTOUT OF THE NC PROGRAM" 470 LOCATE 12, PRINT "[N] 490 LOCATE 12, INPUT "t",d$ 510 LOCATE 14,6 520 PRINT "DO YOU WANT ";A$;" ON A FLOPF/ DISK? 530 LOCATE 14, PRINT "(YJ- 550 LCCATE 14, INPUT "[".J$

12 570 IF (J$="") OR (J$="Y") THEN GOTO 580 ELSE GOTO 6C0 580 LOCATE 14,6 590 PRINT "PLACE DISC IN DRIVE B: AND CLOSE DOOR 600 IF (D$="Y") THEN GOTO 610 ELSE GOTO LOCATE 1.5,6 620 PRINT PREPARE PRINTER IF NEEDED - PUSH ENTER 630 LOCATE 15, INPUT "[READY]",B$ 650 OPEN "0",#1,"PUNCH.BAT" 660 PRINT #i,"echo OFF" 670 PRINT #1,"CLS" 680 PRINT #1,"GWBASIC PUNCH" 690 IF C$="U" THEN PRINT #1,"CNVRT_UV" 700 IF C$»"u* THEN PRINT *1,"CNVRT_UV" 710 IF C$**T" THEN PRINT *x,"cnvrt_tr" 720 IF C$="t" THEN PRINT #1,"CNVRT_TR" 730 PRINT #1,"COPY C:\POST\PUNOUT CJ\Si *\'? 740 IF (J$ "Y") OR (J $="") THEM Cs \POST\PUNOUT fls";a$ NCP" "COPY 750 IF (D$="Y") THEN PRINT #1,"PRINT C:\POSTxPUNOUT 760 PRINT #1,"ECHO ON" 770 PRINT #1,"CLS 780 CLOSE #1 790 SYSTEM 800 END 810 REM 820 REM ******************************************** 830 REM 840 REM ASYNCHRONOUS COMMUNICATION SUBROUTINE 850 REM ********* 860 REM ********************************** 870 REM 880 LOCATE 6,6 890 COLOR 7,1 900 PRINT " 910 LOCATE 7,6 920 PRINT " 930 LOCATE 8,6 940 COLOR 7, 950 PRINT " 960 COLOR 7,1 970 LOCATE 7, PRINT "[E]" 990 LOCATE 7, INPUT "(",H$ 1010 IF H$ * "I" THEN H$ * "E,7" ELSE H$ IS THE TAPE ISO OR EIA N, LOCATE 8, PRINT " PREPARE THE TAPE READER - PUSH ENTER 1040 LOCATE 8,50

13 ON COM(l) GOSUB COKFIL$="COM1.4800,-+H$ 1140 OPEN COMFILS AS DSKFILf= READERIN" 1160 OPEN DSKFIL$ FOR OUTPUT AS IF EOF(1) THEN GOSUB IF LOC(1)>50 THEN PAUSE*TRUESPRINT #l,xoff$ 1190 A$«INPUTS(LOC(l),l) 1200 PRINT#3,A$; 1210 IF LOC(1)>0 THEN IF PAUSE THEN PATJSE-FALSE:PRINT #l,xon$; 1230 GOTO FOR I-l TO IF NOT EOF(1) THEN RETURN 1260 NEXT I 1270 CLOSE # RETURN REM 1300 REM *** XON/XOFF RECEIVING ROUTINE *** 1310 REM 1320 IF EOF(1) THEN RETURN 1330 B$-INPUT$(LOC(1),1) 1340 IF LEN(B$S2 THEN 136C 1350 IF B$=XOFF$ THEN XFLAG RETURN 1380 XFLAG RETURN 1400 LOCATE 8, COLOR 2, PRINT "TAPE READING COMPLETED 1430 CLOSE # GOTO 240

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15 Author Hill Mark Jeffrey Name of thesis The networking of NC and CNC machines to facilitate the electronic transfer of CAD/CAM data PUBLISHER: University of the Witwatersrand, Johannesburg 2013 LEGAL NOTICES: Copyright Notice: All materials on the University of the Witwatersrand, Johannesburg Library website are protected by South African copyright law and may not be distributed, transmitted, displayed, or otherwise published in any format, without the prior written permission of the copyright owner. Disclaimer and Terms of Use: Provided that you maintain all copyright and other notices contained therein, you may download material (one machine readable copy and one print copy per page) for your personal and/or educational non-commercial use only. The University of the Witwatersrand, Johannesburg, is not responsible for any errors or omissions and excludes any and all liability for any errors in or omissions from the information on the Library website.