G80??

[Ray Henry <rehenry-at-up.net>]

List

I'm attempting to write a brief description for the handbook of the moves
generated by canned cycles.  Most are fairly well outlined in the various
RS274* doccuments from NIST.  Dan read the draft and pointed out that I'd
missed g80.  

What I know about g80
---------------------

It is included in the motion modal group:
group 1 = {G0,G1,G2,G3,G80,G81,G82,G83,G84,G85,G86,G87,G88,G89} - motion

In the list of meanings for g words it says:
G80 cancel motion mode (including any canned cycle)

In the listed order of execution it says:
20. perform motion (G0 to G3, G80 to G89).

In the list of error messages it says:
29. Cannot use axis commands with G80
34. Coordinate setting given with G80

So I take it that g80 works as a software motion lock. I tried it in a nc
program and it will generate the error messages listed but I can't imagine
any practical use for it.

Help! 

Ray