Dimensional Measuring Interface
Standard
Standard Improvement Request
|
SIR No. 96-5 DMIS Release 3.0 SIR Type Enhancement Severity Prevents Programming Status Resolved Date Submitted November 4 1996 Date Validated November 4 1996 Date In Process Date Referred April 30 1997 Date Vote Pending Date Closed August 21 1998 Action Clarifications Submitted By M.K. Holloway Lockheed Martin Energy Systems P.O. Box 2009 Oak ridge TN 37831 USA Phone: (423)574-6756 Fax: (423)574-2328 hollowaymk@ornl.gov |
Problem Topic
Cross c/l cyl. coord. sys.
Problem Description
Because of the way coordinates transform from cartesian to cylindrical systems, it cannot be determined which side of the centerline to measure on. This would allow the programmer t specify how to handle this.
References
None
Related SIRs
None
Suggested Resolution
Add a new major word CROSCL/var_1, where var_1 can be either ON or OFF.
Support Documentation
None
Resolution
Warning!!
The following statement is only a resolution to a Standard Improvement Request (SIR) and is NOT part of the current DMIS standard, nor is it guaranteed to become part of the next revision of the DMIS standard even if voted and accepted by the DMIS National Standards Committee. This resolution is tentative because it may not be incorporated into the next version of the standard, it could be changed prior to the next release, or it could be changed as the result of the "public review and comment" period required for the next version of the standard. If you choose to use this tentative resolution, you do so at your own risk since at this time it is not part of the DMIS standard.
Create new major word CROSCL (CrossCenterLine).
CROSCL
Function: Used to enable or disable sensor motion to the negative (far) side of the rotary axis centerline of a DME with two linear and one rotary axis. This statement is ignored by DME's with three linear axes.
Input Format: CROSCL/var_1
Output Format: CROSCL/var_1
Where:
| var_1 can be: | ON |
| or: | OFF |
OFF signifies that the measurement sensor is positioned on the positive (near) side of the rotary axis centerline.
The DECPL statement is passed through to the output file when executed.
Note: The specified CROSCL is modal and remains in effect until it is changed by another CROSCL statement.
Note: When GOTO/x,y,z or when PTMEAS/x,y,z,0,0,1 are specified in a part program which is then run on a 2 linear and 1 rotary axis machine there are two possible conversion results. CROSCL is used to select the desired possibility. Example: GOTO/0,10,20 can be converted to 10,20 with a rotation of 0 degrees or -10,20 with a rotation of 180 degrees. The latter case is selected by having CROSCL/ON in effect.
Attachments
96-5_CROSCL.DOC (20.0 KB)
MS Word File of CROSCL
Notes
Added by Administrator, bsquier@dmisstandard.com on 6/9/1998
This SIR was designated as "Return to Sender" for more information and explanation; i.e., Syntax, sketches, and application.
Added by Mike Holloway, hkm@ornl.gov on 7/30/1998
Attention other reviewers. Please see my comments (as submittee) on this SIR on the DMIS message board.