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8-3-6 Continuous Positioning
This program is a continuous program of all positioning from subsections
8-3-1
through
8-3-5
. Positioning follows the order (1)-(5) as shown in the fig-
ure. However, at point A, bit j+5 (15) turns ON for one scan; at point B, bit j+5
(14) turns ON for one scan; at point C, bit j+5 (13) turns ON for one scan;
and at the origin, bit j+5 (12) turn ON for one scan.
First, the X-axis motor moves independently to point A. At point A the X-axis
M code is 10 and triggers (the integrated signal) the Y-axis motor to move via
point B to point C. Next, the Y-axis M code (21) triggers the straight-line inter-
polation to the origin followed by two consecutive circular arc interpolations,
one by designating the center and one by designating the intermediate point.
The interpolation series of commands transfers as one command block. This
is because only one SRT command for the same axis or axes can be allowed
in one command block. Since the last three interpolations all involve the
same two axes, transferring together is allowed.
Y axis (pulse)
C (10,000,
10,000)
A (10,000, 0)
0 (origin)
D
(3)
(5)
(2)
(1)
B
X axis (pulse)
Basic Program Examples
Section 8-3