system variable for tool in spindle

[ggborgen]

Gentlemen,
I have a doosan horizontal with a fanuc 18i control, can you tell what the system variable for tool in spindle is? Thank You

[dcoupar]

I don't believe there's a system variable for the tool # in the spindle. #4120 is the last T# read by the program.

[sinha_nsit]

And manual tool change does not update #4120

[stevo1]

Not all but some MTB will write a system variable for the current tool in the spindle. You will have to try and find it in the MTB manual. If not I have a small program I run to capture the values in the system variables and if one of them matches the current tool then I will change tools and try it again. If the variable changes accordingly then presume to have found it.

This is kind of a crude way but when no MTB manual is available then it can help get some of the data you need.

Stevo

[sinha_nsit]

If we move the tool manually, does it automatically update the system variable for current tool position?

I have a suspicion that some system variables get updated only through program execution.

[sinha_nsit]

OK. I verified on 0i TC.
System variable for current position does automatically get updated, even if we move the tool manually.

[Mike xyz]

On a Haas the variable for the tool in the spindle is #3026. From the few programs I have converted from Fanuc to Haas I have noticed most of the variables are the same. You might want to try #100= #3026 and see if you get the spindle tool number in variable 100.

Best regards.

Mike.

[MysticMonkey]

Set your programs to call a tool via a variable rather than a T number
%
#1=1(CURRENT TOOL);
#2=2(NEXT TOOL);
;
;
T#1M06;
T#2;
M03S1000;
#1=2;
#2=3;
;
;
%

Probably won't work well if you have some sort of tool management function but.
there you have it