Fanuc subprograms

[dougm]

I am trying to run a sub program Inside a main program

this is on a 16I control

I have searched the forums but am still confused.

any help is appreciated.

 

in the control this gives me "Program not found"

sample code

 

T1 M06 ( #1 CENTERDRILL)

(MAX - Z.1)

(MIN - Z-.04)

M08

G00 G17 G90 G54 X-.2461 Y.3346 S6500 M03

(STAGE NEXT TOOL )

M15 E1

Z.1

M98 P0001

G90 X.4939

M98 P0001

M09

M05

G91 G28 Z0.

G90

G53 X3. Y20.

G90

 

N0001

( #1 CENTERDRILL)

G91

G94

G98 G81 Z-.04 R-.1 F20.

Y-.6692

X.4922

Y.6692

G80

M99

 

Doug

[Guest]

Try an M97 instead of an M98

 

I've always used external subs on Fanucs so I'm not 100% it will work for you.

[Newbeeee™]

On the fanucs, you can't run a sub from within the main. It has to be a seperate prog within the machine.

This is one neat thing with the HAAS controls, where you can run internal subs. I wish fanuc would copy this idea...

[Guest SAIPEM]

I am trying to run a sub program Inside a main program

this is on a 16I control

I have searched the forums but am still confused.

any help is appreciated.

 

in the control this gives me "Program not found"

sample code

 

T1 M06 ( #1 CENTERDRILL)

(MAX - Z.1)

(MIN - Z-.04)

M08

G00 G17 G90 G54 X-.2461 Y.3346 S6500 M03

(STAGE NEXT TOOL )

M15 E1

Z.1

M98 P0001

G90 X.4939

M98 P0001

M09

M05

G91 G28 Z0.

G90

G53 X3. Y20.

G90

 

N0001

( #1 CENTERDRILL)

G91

G94

G98 G81 Z-.04 R-.1 F20.

Y-.6692

X.4922

Y.6692

G80

M99

 

Doug

 

 

M98 calls an external sub.

 

M97 on a Haas calls an internal sub.

 

M99 is a return from a sub but it is also a call/jump to a sequence number.

 

Make the M98 P0001 a M99 P0001

 

Keep in mind that you'll need the M99 at the end of the drilling to also have a sequence number telling where to return to.

You'll have to figure out how to properly branch and return which will be impossible as Sequence Numbers are not required to be unique.

You can have an entire program with each block having the same sequence number so you need a unique sequence number call at the end of the drilling.

The only way to achieve this is with Macro B.

 

T1 M06 ( #1 CENTERDRILL)

(MAX - Z.1)

(MIN - Z-.04)

M08

G00 G17 G90 G54 X-.2461 Y.3346 S6500 M03

(STAGE NEXT TOOL )

M15 E1

Z.1

#1=[0]

M99 P100

N1

G90 X.4939

M99 P100

N2

M09

M05

G91 G28 Z0.

G90

G53 X3. Y20.

G90

 

N100

( #1 CENTERDRILL)

G91

G94

G98 G81 Z-.04 R-.1 F20.

Y-.6692

X.4922

Y.6692

G80

G90

#1=[#1+1]

M99 P[#1]

[Newbeeee™]

Edit:- I remember either on here or practical machinist forum a discussion about this (I think it was practical machinist).

You can do this by running GOTO's but I think that's it. I believe GOTO's aren't particulaly safe for program restarts though,

[dougm]

thanks guys

I Will try this when I can get at the machine

Doug

[dougm]

Thanks for the input from everyone.

your examples worked but

it appears to be much more complicated

than I first assumed it to be.

I guess its faster for the control to jump from

program to program than to search thru a long program.

 

Doug

[Guest CNC Apps Guy 1]

I guess its faster for the control to jump from

program to program than to search thru a long program.

Doug

That is accurate.

[K2csq7]

+1^

I use subs on a regular basis for Fanuc's.... Always a seperate program.

[BenK]

What would be the advantage of doing this all in one program? I do sub programs all the time but they are always separate programs.

[Reko]

What would be the advantage of doing this all in one program? I do sub programs all the time but they are always separate programs.

 

I like to use M97 on a Haas keeping everything in one program because it was easier to store and recall them, and when you pull the program up a year later, everything is there and ready to go within the one program you have re-loaded. There isn't as much organization needed to keep the sub-programs from getting lost or overwritten.

 

Other than that, it's really the same thing.

[BenK]

I store all my programs in one file under the part number and when a program gets downloaded it goes into the one folder that the operators have access to and we update the original.

[Reko]

Yup. It's really just another way to do the same thing. Someone mentioned file size being a potential issue with internal sub-programs, but other than that, it really comes down to preference.

[Newbeeee™]

What would be the advantage of doing this all in one program? I do sub programs all the time but they are always separate programs.

 

The old sh!te tip where I used to work was always a nightmare - main program would be saved but never the subs.

The haas idea is really good. Fanuc should swallow hard and admit someone else has a good idea and copy it.

[dougm]

keeping up with subs is the main reason I asked

the way we do it now is to translate and output all in one program

using subs would be less code and faster to edit drill depths and so on

it sounds like the HAAS m97 would be a nice option

[Oscar R.]

We program most of our parts here pretty much exclusively with internal subs and for the most part with good results. Although file size can be an issue.

 

Here's a sample of what is typical for our Robo using a 16i control.

 

%
O1000

G54 G0 G17 G40 G49 G80 G90 G94 G53
(  1/4 DRILL | TOOL - 1 | DIA. OFF. - 11 | TOOL DIA. - .25 )
N100 T1 M6
G0 G90 G54 X0. Y0. S10000 M3
G43 H1 Z.25
M98 P10001
G49 G53 M5 Z0.
M01
(  1/8 DRILL | TOOL - 2 | DIA. OFF. - 12 | TOOL DIA. - .125 )
N110 T2 M6
G0 G90 G54 X.4 Y-.3 S10000 M3
G43 H2 Z.25
M98 P10002
G49 G53 M5 Z0.
G53 X0. Y0.
M30

O0001
G98 G83 Z-1. R.1 Q.1 F76.
X.4 Y.2
X.8 Y.4
X1.2 Y.6
X1.6 Y.8
G80
M99

O0002
G98 G83 Z-1. R.1 Q.1 F76.
X.8 Y-.6
X1.2 Y-.9
X1.6 Y-1.2
G80
M99
%

 

The one thing I noticed in your code is your program is calling an M98 P with a program number.

Where as ours calls an M98 P1 with a program number.

Not sure if this is machine specific though.

 

Hope this helps.

[Crazy Bruce]

The 1 after the P is telling the control how many times to repeat the sub program. If you are only running the sub program once, you don't need it.

[Manuel0822]

It is not P that tells the control how many times to repeat it but L, so M98 P1001 L3 would run program 1001 on 3 repeats.

 

Also, I do like the M97 call on the haas' but I do agree that is actually faster for the controller to jump to a separate program indtead of looking inside the one running.

 

Have you ever tried to restart a looong program in the middle on a haas control? It can literaly take some 30 seconds to read from the top down to the restart point.

 

Besides that, it is easier on Fanuc controllers to edit any subprograms when needed using the background editing while the machine keeps running, something I still can't figure out how to do on haas.

 

As far as organizing programs, fanuc controls will take all text at once as long as it doesnt find the % sign so a single file on your server can have a main program and 10 subs all with their own Oxxxx program number and a single % at top and a last % at the very bottom, after the last sub's M99.

 

HTH

[dougm]

Oscar

your machine reads your example in as one program?

all of mine separate the "O" as different programs

in memory the main program stops at the M30

loaded from the data server

could it be a machine parameter setting ?

[Guest CNC Apps Guy 1]

It's on the Memory Card as one program, but as long as there is only a % at the top and bottom, it will create multiple programs in the control. In his sample, he had O1000 as his main and O1 and O2 were his subs. The control will read the whole file in and break them up at the "O"'s.

[Manuel0822]

He didnt mean it will be a single file on the control, his example will load 3 different programs (O1000 as main, and O0001 and O0002 as subs) but it will load them all at once as descibed on my previous post, see the % at beginning and bottom after O0002?

 

Oh well, all this is for the fanucs I've worked with on the past

[Oscar R.]

It's on the Memory Card as one program, but as long as there is only a % at the top and bottom, it will create multiple programs in the control. In his sample, he had O1000 as his main and O1 and O2 were his subs. The control will read the whole file in and break them up at the "O"'s.

 

He didnt mean it will be a single file on the control, his example will load 3 different programs (O1000 as main, and O0001 and O0002 as subs) but it will load them all at once as descibed on my previous post, see the % at beginning and bottom after O0002?

 

Dougm

This is correct, we load the complete file into the control as one. The control will break the main program from the subs.

[Newbeeee™]

Have you ever tried to restart a looong program in the middle on a haas control? It can literaly take some 30 seconds to read from the top down to the restart point.

 

HTH

 

That's because they are using 386 chips for processing. At least our fanucs are using 486...