Fanuc Series 15i/150i-MA (Programming) Operators Manual

14.COMPENSATION FUNCTION PROGRAMMING B-63324EN/03
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(3) Reading and writing the data by the PMC window
The data can be read and written as a system variable of a custom
macro by the PMC window.
NOTE
The NC window function and custom macro function
are required.
(4) Outputting the data to an external device
By selecting <PUNCH> on the fixture offset screen, the data can
be output to a Floppy Cassette or other external device via RS-
232C.
The data is output in the G10 form without a program number.
NOTE
The reader/punch interface function and
programmable data input function (G10) are
required.
(5) Input from an external device
Data can be entered from an external device such as the Floppy
Cassette via the RS-232C interface by selecting the read soft key
on the fixture offset screen. Data can be entered in the G10 format
that assigns no program number.
NOTE
The reader/punch interface function and
programmable data input function (G10) are
required.
- Calculating the Fixture Offset
(1) Relationship between the rotation axis and linear axes
First group : 4(B-axis) , 3(Z-axis) , 1(X-axis)
Second group : 5(C-axis) , 1(X-axis) , 2(Y-axis)
Third group : 0, 0, 0
(2) Reference angle and reference fixture offset
X : F
0X
Y : F
0Y
Z : F
0Z
B : θ
0
C : φ
0
Then, let O, W, F0, FA, and F be as follows :
O : Rotary table center
W : Workpiece origin offset value
F
0
: Fixture offset value when B = θ
0
and C = φ
0
F
A
: Fixture offset value (F
AX
,F
AY
,F
AZ
) when B = 0 and C = 0
F : Fixture offset value (F
X
,F
Y
,F
Z
) when B = θ and C = φ
Then, the following expression is used for fixture offset calculation.

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