Delta AS Series Programming Manual page 1234

Other
5. Refer to Example 2 from the DPPMR instruction (API 2710) for programming in ST language.
Drawing the counterclockwise arc (for Setting values 0~12 in S
1. Define the four quadrants (QI, QII, QIII and QIV) of a coordinate system as below. Point A indicates the current
coordinates on X and Y axes.
2. Point B is the target coordinates specified by S
3. For PLC with FW V1.04.59 or previous versions, S
V1.04.60 or later, S can also be the distance to shift the center point or central angle, if it is defined as the central
3
angle, it is the included angle of AOB.
4. The point A represents the origin of the axes X and Y in a plane. The target point B can be in Quadrant I, II, III, IV of
the plane. Use the target point B to connect to the point A to draw a line and then use the setting values (shift the
center point or the central angle) in S
The figures below show 2 arc-travel path examples (solid lines) when the point B is in Quadrant I and IV with
different setting values in S
A
Shift of the center (32-bit integer type)
Y
II
III
and S
1
is the distance to shift the center point O. For PLC with FW
3
to define an arc travel path.
3
(shift the center point). (r: radius)
3
O
S >= 0
B
3
r
S >= 0
3
Cha p ter 6 App l ied Ins truc tio ns
degree arc of an ellipse and to end at a
point where X and Y axes target
corrdinates specified.
(FW V1.10.10 or later)
Seen as setting value in S
The arc resolution uses a 10° arc as the
basic angle for motion.
)
5
I
X
A
IV
. Point O is the center of a circle containing points A and B.
2
A
r
S < 0
3
is 0
5
B
S < 0
3
O
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