Heidenhain 426

KevinV_MEI · Dec 29, 2017

Trying to get a conversational post to work in either Fusion 360 or Inventor 2018 and have a question about using datum tables and cycle def 7 or 247.

Here is the code it puts out.

21 CYCL DEF 247 DATUM SETTING ~ I get an error 21 with no further explanation. I can't find a cycle 247. 7 yes but I get an incomplete cycl def if I change 247 to 7. I do want to use the datum table stored on the controller. This is as far as I was able to get on this one.
Q339=1 ; DATUM NUMBER

Thanks.

Kevin V.

Oily · Dec 29, 2017

When my control throws that error the number is referring to the line number.

Heres the start of the program im running right now, hopefully it will give you ideas.

0 BEGIN PGM EYEBOLTS-ENDS INCH
1 CYCL DEF 247 DATUM SETTING ~
2 Q339= 3; DATUM NUMBER
3 ; SET W0.0 OR GAUGE HEIGHT AND Z0.0
4 Q1825 = 1;W OFFSET BACK

gustafson · Dec 29, 2017

personally I got a post working pretty well in Fusion and put all my datums etc in at the machine

When editing the post you can make it say just about anything at the beginning of the program, so if you are always calling a datum table you can call that all as text.

editing the posts is kind of something you really need to get your mind wrapped around. I guess it is Javascript

swarf_rat · Dec 31, 2017

What's the code look like at cycle 247? It should be something like:

13 CYCL DEF 247 DATUM SETTING
Q339 = 4

That's the way it will look if you punch it in at the keyboard. Many post processors will put a line number or other punctuation somewhere in the cycle definition, in my experience that causes problems.

KevinV_MEI · Jan 2, 2018

Thanks all for your help and input. Didn't put too much thought into the conversational post, we have the ISO pot tweaked to our liking. Attached below. Use it at your own risk.View attachment heidenhainiso-mei_New .cps.zip

Unzip and remove the .txt extension.

Hansdie · Jan 2, 2018

KevinV_MEI said:
Trying to get a conversational post to work in either Fusion 360 or Inventor 2018 and have a question about using datum tables and cycle def 7 or 247.

Here is the code it puts out.

21 CYCL DEF 247 DATUM SETTING ~ I get an error 21 with no further explanation. I can't find a cycle 247. 7 yes but I get an incomplete cycl def if I change 247 to 7. I do want to use the datum table stored on the controller. This is as far as I was able to get on this one.
Q339=1 ; DATUM NUMBER

Thanks.

Kevin V.

Does G247 work in ISO?

I'm guessing G247 or cycle 247 won't work on a TNC426. So you need to use Cycle 7 and in the machine parameters, MP7475 (use code number 123), set if the datum table is from machine zero or workpiece zero.

If you have a newer TNC426 you maybe able to update the software to get cycle 247 working otherwise you need TNC530 or newer

Also if you are using cycle 7 from a data table the format is

10 CYCL DEF 7.0 DATUM SHIFT
11 CYCL DEF 7.1 #1

and you need to select the active datum table in PGM MGT

KevinV_MEI · Jan 3, 2018

No, In ISO you use a G53 P01 +1(+1 in place of G54) or 2, 3, etc. It assumes there is only one datum table, named Datum.d.

I did change the MP7475 parameter from 0 to 1. Are you saying it should be 123?

I did try to get an update from HH. They will only do it through Bridgeport, who for all intents and purposes here are defunct.

I will try the proposed code above. I do like the ability to use conversational. It could be very productive on that controller. At which point do you use PGM MGT to select the active table?

Hansdie · Jan 5, 2018

KevinV_MEI said:
No, In ISO you use a G53 P01 +1(+1 in place of G54) or 2, 3, etc. It assumes there is only one datum table, named Datum.d.

I did change the MP7475 parameter from 0 to 1. Are you saying it should be 123?

I did try to get an update from HH. They will only do it through Bridgeport, who for all intents and purposes here are defunct.

I will try the proposed code above. I do like the ability to use conversational. It could be very productive on that controller. At which point do you use PGM MGT to select the active table?

In ISO, G247 is the same as Cycle 247, if your control supports which yours doesn't, and G53 is the same as Cycle 7, when using datum tables.

Not sure that it assumes there is only one datum table. Its probably you only have one and it was already selected. You can try it though... make a new datum table such as TEST.D, then hit the "program run" key, then "PGM MGT" key and then select TEST.D. If a M ends up behind it then that is the current active datum table.

123 is the user code number (ie password) you should be using to enter into machine parameters.

Let me know what your current NC software is and I will check what the newer version is.

fisa · Oct 6, 2018

sorry for interruption but probably i am stuck almost the same situation...i am sure some one guide me about my issue...the problem is

Recently got a machine called Deckel Maho DMU 80 with TNC426 controller..machine is in good condition ..but there is some issues between conversation codes and iso code when i send some drilling program thru tncremo .the controller shoe some error in program ..i am not familiar with conversation code and i want to use ISO codes...i have a Post processor which is tested and smoothly use on other machine called DMU630V..please check attach file for better under standing.also you can see in jepeg when i load( .H )type file the cycle definition soft key remain enable but when i load (.I) type file the cycle definition soft keys disable..please advice me about this issue

regards

asif

og76 · Nov 28, 2022

KevinV_MEI said:
Thanks all for your help and input. Didn't put too much thought into the conversational post, we have the ISO pot tweaked to our liking. Attached below. Use it at your own risk.View attachment 216772

Unzip and remove the .txt extension.

Hey,

I'm just trying to write a post for FeatureCAM would you be able to send a sample ISO program. Thanks for your help

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