9 Application Instructions API 150-199 d) PLC RUN. Set M0 as On and start the drawing of the ellipse. 3. Motion explanation: When PLC RUN and M0 = On, PLC will start the drawing of the first segment of the arc. D0 will plus 1 whenever a segment of arc is completed and the second segment of the arc will start to execute automatically. The same motion will keep executing until the fourth segment of arc is completed. Program Example 2: 1. Draw a tilted ellipse as the figure below. Y (26000,26000) (34000,18000) X (0,0) (8000,-8000) 2. Steps: a) Find the max. and min. coordinates on X and Y axes (0, 0), (26000, 26000), (34000, 18000), (8000, -8000) (as the figure above).
Calculate the relative coordinates of the four points and obtain (26000, 26000) 、 (8000, -8000) 、 (-26000, -26000), (-8000, 8000). Place them respectively in the 32-bit (D200, D202), (D204, D206), (D208, D210) and (D212, D214). b) Select “draw clockwise arc” and “average resolution” ( S = K0). c) Select DCIMR instruction for drawing arc and write program codes as follows. d) PLC RUN. Set M0 as On and start the drawing of the ellipse.
DVP-PLC Application Manual 9-121 = D0 K1 DCIMR D200 D202 K0 Y0 = D0 K2 DCIMR D204 D206 K0 Y0 = D0 K3 DCIMR D208 D210 K0 Y0 = D0 K4 DCIMR D212 D214 K0 Y0 M0 RST M1029 MOV K1 D0 M0 M1029 INCP D0 END DCIMR D200 D202 K0 Y0 DCIMR D204 D206 K0 Y0 DCIMR D208 D210 K0 Y0 DCIMR D212 D214 K0 Y0 RST M1029 MOV K1 D0 INCP D0