
PROGRAMMING
4. INTERPOLATION FUNCTIONS
B–63664EN/02
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In a block specifying P1 to P4 after G31, the multi–step skip function
stores coordinates in a custom macro variable when a skip signal (4–point
or 8–point) is turned on.
Parameters No. 6202 to No. 6205 can be used to select a 4–point or
8–point skip signal. One skip signal can be set to match multiple Pn or
Qn (n=1,2,3,4) as well as to match a Pn or Qn on a one–to–one basis.
Parameters DS1 to DS8 (No. 6206 #0A#7) can be used for dwell.
Move command
G31 IP __ F __ P __ ;
G04 X (U, P)__ (Q__)
;
Dwell
_ : End point
F_ : Feedrate
P_ : P1–P4
X(U, P)_ : Dwell time
Q_ : Q1 – Q4
IP
IP
Multi–step skip is caused by specifying P1, P2, P3, or P4 in a G31 block.
For an explanation of selecting (P1, P2, P3, or P4), refer to the manual
supplied by the machine tool builder.
Specifying Q1, Q2, Q3, or Q4 in G04 (dwell command) enables dwell
skip in a similar way to specifying G31. A skip may occur even if Q is
not specified. For an explanation of selecting (Q1, Q2, Q3, or Q4), refer
to the manual supplied by the machine tool builder.
Parameter Nos. 6202 to 6205 can be used to specify whether the 4–point
or 8–point skip signal is used. Specification is not limited to one–to–one
correspondence. It is possible to specify that one skip signal correspond
to two or more Pn’s or Qn’s (n=1, 2, 3, 4). Also, bits 0 (DS1) to 7 (DS8)
of parameter No. 6206 can be used to specify dwell.
CAUTION
Dwell is not skipped when Qn is not specified and
parameters DS1–DS8 (No. 6206#0–#7) are not set.
4.11
MULTI–STEP SKIP
(G31)
Format
Explanations
D Correspondence to skip
signals