TLO macro

[qmas99]

O9010(TOOL CHANGE)
G0G91G30Z0
G91G30X0Y0
#100=#100+1
DO1
M6T#100
G90G53X15.Y-2.8
#3006=1(TAKE TLO ON 3IN BLOCK)
G10L10P#100R#5023
#100=#100+1
END1
M99
I have tool change macro above, set to G100, question:
Instead of setting #100=1 or set #100 manually every time I run G100, I want to run G100 T10, is there any system variable that can get #10 to put in #100.
Thanks

[angelw]

Originally Posted by qmas99 O9010(TOOL CHANGE) G0G91G30Z0 G91G30X0Y0 #100=#100+1 DO1 M6T#100 G90G53X15.Y-2.8 #3006=1(TAKE TLO ON 3IN BLOCK) G10L10P#100R#5023 #100=#100+1 END1 M99 I have tool change macro above, set to G100, question: Instead of setting #100=1 or set #100 manually every time I run G100, I want to run G100 T10, is there any system variable that can get #10 to put in #100. Thanks

I'm not quite sure what you want to do exactly, except that you're setting the TLO with the Macro program. I'm not sure why you increment #100 by 1 at the start of the program and in the DO1 routine. Are you calling O9010 repeatedly from your main program? There is no Conditional statement associated with the DO1 routine, accordingly, there is no need for it.

If you only need to load a tool number into #100 and therefore access the corresponding offset for that tool, the T parameter will be passed to #20 in the Macro program.

O9010(TOOL CHANGE)
G0G91G30Z0
G91G30X0Y0
#100=#20
DO1
M6T#100
G90G53X15.Y-2.8
#3006=1(TAKE TLO ON 3IN BLOCK)
G10L10P#100R#5023
#100=#100+1 (Not sure why you increment #100 here)
END1
M99

Alternatively, System variable #4120 is the Modal information for T.

Regards,

Bill

[christinandavid]

Looks like he uses this loop to quickly set his tool lengths before he starts running.

Now he wants to start it from a specific tool.

To reiterate what angelw said :-

Replace that

#100=#100+1.
(at the start)

with: -

#100=#4120 (saves current spindle tool)
IF[#20NE#0]THEN #100=#20 (overwrites it with the T# if you specified it)

If you want this loop to repeat (when setting up, for example), alter to a WHILE[ ] DO command so that it will repeat forever (until RESET anyway)

Then, if you only want a mid-batch 'one shot' tool length check (ie when you specify a T), at the end of your loop, put something like: -

IF[#20NE#0]GOTO10 (jumps out of loop if you specified T)
#100=#100+1.
END1
N10 M99


DP

[qmas99]

Originally Posted by angelw I'm not quite sure what you want to do exactly, except that you're setting the TLO with the Macro program. I'm not sure why you increment #100 by 1 at the start of the program and in the DO1 routine. Are you calling O9010 repeatedly from your main program? There is no Conditional statement associated with the DO1 routine, accordingly, there is no need for it. If you only need to load a tool number into #100 and therefore access the corresponding offset for that tool, the T parameter will be passed to #20 in the Macro program. O9010(TOOL CHANGE) G0G91G30Z0 G91G30X0Y0 #100=#20 DO1 M6T#100 G90G53X15.Y-2.8 #3006=1(TAKE TLO ON 3IN BLOCK) G10L10P#100R#5023 #100=#100+1 (Not sure why you increment #100 here) END1 M99 Alternatively, System variable #4120 is the Modal information for T. Regards, Bill

Thanks Bill,
yes #100=#20 does the trick, works with G100T#
I want to use it in MDI to do TLO, that is why #100+1

[angelw]

Originally Posted by qmas99 Thanks Bill, yes #100=#20 does the trick, works with G100T# I want to use it in MDI to do TLO, that is why #100+1

That still doesn't explain why the #100+1. The current structure of your DO Loop will only run the one time because there is no conditional statement for it to do else-wise. If you included a WHILE[] conditional statement as suggested by Kiwi, then the loop would repeat as long as the WHILE[] statement tested true. For example, you could specify a range in your G100 call and the DO loop would repeat while #100 was less than, or equal to the upper limit of the range.

G100 T? U?


#100=#20
IF[#21EQ#0]THEN #21=#100 (if the upper range is not specified, set it to the lower range so the loop only sets the one tool)

WHILE[#100 LE #21] DO1
#100 = #100 + 1
END1


Regards,

Bill

[qmas99]

When DOm is specified without specifying the WHILE statement, an infinite loop ranging from DO to END is produced. (got from the operator's manual). #100+1 keep adding up untill I hit RESET.
QM

[angelw]

Originally Posted by qmas99 When DOm is specified without specifying the WHILE statement, an infinite loop ranging from DO to END is produced. (got from the operator's manual). #100+1 keep adding up untill I hit RESET. QM

You're so right. I've never used a DO loop with out some condition, just for the reason of good structure and controlling the Loop.

Because you have the tool change inside the DO loop, don't you get an alarm if #100 exceeds the maximum number of tools available in the magazine? If yes, then your method would rely on the operator to be aware and abort using Reset before that occurs, as opposed to controlling if either 1, or to a maximum tool number should be set.

Regards,

Bill

DO1
M6T#100
G90G53X15.Y-2.8
#3006=1(TAKE TLO ON 3IN BLOCK)
G10L10P#100R#5023
#100=#100+1
END1
M99

[christinandavid]

You learn something new everyday (I always used to put WHILE[#0EQ#0]...).

I think the message to the operator when you exceed the maximum tool should be . . . (WHY DONT YOU GO AND DO1...)



DP

[sinha_nsit]

An isolated DO1, without a matching WHILE statement, should give syntax error.

If a subprogram (O9000) is called by a T-code, the value specified with T automatically gets stored in #149, for use inside the subprogram.

[angelw]

Originally Posted by sinha_nsit An isolated DO1, without a matching WHILE statement, should give syntax error. If a subprogram (O9000) is called by a T-code, the value specified with T automatically gets stored in #149, for use inside the subprogram.

Hi Sinha,
QM is correct with regards to the DO statement. This was new to me, as I've always used a conditional statement to control the loop. Following is a direct cut and paste from the Fanuc manual.

When DO m is specified without specifying the WHILE statement, an
infinite loop ranging from DO to END is produced.


Regards,

Bill

[sinha_nsit]

Right.
Actually, isolated END 1 is not permitted, IIRC. There was a mix up.