Dimensions In Metric Units And Inches: G71, G70, G710, G700 - Siemens sinumerik 808d Programming And Operating Manual

Programming principles
1.2 Positional data
1.2.3

Dimensions in metric units and inches: G71, G70, G710, G700

Functionality
If workpiece dimensions that deviate from the base system settings of the control are present
(inch or mm), the dimensions can be entered directly in the program. The required
conversion into the base system is performed by the control system.
Programming
G70
G71
G700
G710
Programming example
N10 G70 X10 Z30
N20 X40 Z50
N80 G71 X19 Z17.3
Information
Depending on the default setting you have chosen, the control system interprets all
geometric values as either metric or inch dimensions. Tool offsets and settable work offsets
including their displays are also to be understood as geometrical values; this also applies to
the feed F in mm/min or inch/min.
The default setting can be set in machine data.
All examples provided in this manual assume the metric default setting.
G70 or G71 evaluates all geometrical data that directly refer to the workpiece, either as
inches or metric units, for example:
● Positional data X, Z, ... for G0,G1,G2,G3,G33, CIP, CT
● Interpolation parameters I, K (also thread lead)
● Circle radius CR
● Programmable work offset (TRANS, ATRANS)
All remaining geometric parameters that are not direct workpiece parameters, such as
feedrates, tool offsets, and settable work offsets, are not affected by G70/G71.
G700/G710 however, also affects the feedrate F (inch/min, inch/rev. or mm/min, mm/rev.).
28
; Inch dimensions
' Metric dimensions
; Inch dimensions, also for feedrate F
; Metric dimensions, also for feedrate F
; Inch dimensions
;G70 continues to act
; metric dimensioning from this point on
Turning Part 2: Programming (Siemens instructions)
Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0