
B–63523EN–1/03
19. INTERFACES RELATED TO Series 20i MACRO
2019
Machining data setup signals
These signals are used for manual handle/jog feed (linear/circular feed).
Address Size Linear feed Circular feed
R961 1 byte
0: Neither linear nor circular feed is performed.
1: Linear feed
2: Circular feed (clockwise)
3: Circular feed (counterclockwise)
R962 to R965 4 bytes X–axis approach direc-
tion
X–axis coordinate for
circle center position
(X0)
R966 to R969 4 bytes Y axis approach direc-
tion
Y axis coordinate for
circle center position
(Y0)
R970 to R973 4 bytes Distance from the origin
to the line (P)
Circle radius (R)
R974 1 byte Travel direction when the
guidance handle is ro-
tated forward
0: +90 degrees with
the approach
direction
1: –90 degrees with
the approach
direction
0: Machining inside
the circle
1: Machining outside
the circle
R975 1 byte #7 #0
Reset these bits to 0.
Specify a forbidden area if the limit function
is enabled.
0: The forbidden area is in the same direc-
tion as the approach direction.
1: The forbidden area is in the direction op-
posite to the approach direction.
Specify whether to enable the limit function.
0: Disable
1: Enable
R979 1 byte Setup change notification
D If neither linear nor circular feed is to be performed, reset R961 to 0.
R962 to R974 may be set to any value, however.
D The setup change notification signal (R979) indicates to the NC that
data for linear or circular feed has been changed.
The procedure for this follows:
1 Set data at R961 to R 974.
2 After setting the data, reset R979 to 0.
3 The NC starts reading the data.
4 When the NC finishes reading, it sets R979 to 1.
MACRO ³ CNC