Question

4. At the first time, motor (M) is at home position and touch the LS1. After you press the START button (0.00) M will run to CW direction and after M touch the LS2, M will stop and then 3.5 second later M will run to CCW direction and after M touch the LS1, M will stop. Home START L 2 Motor CW (100.00) Activate Windows Go to Settings to activate Windows Motor CCW (100.01)

How to make the ladder diagram in PLC about this case ?

Answer 1

P L C Ladder Diagram Input - Output connections Tags/ variable Address 1) START P B 00.0 2) Limit switch L S 1 I 0.0 3) Limit switch L S 2 I 0.1 4) Timer On Delay T ON T 0 5) Counter up C T U C 0 6) Motor clock wise (c w) 100.00 7) motor counter clock wise (c c w) 100.01 P L C logic operation At the first timer, motor (M) is at home position and touch The L S 1 (I 0.0) After you press the START push bottom 00.0 The motor M 0.01 has to go clock wise direction for L S 1 I 0.0 will give signal to clock wise direction contractor 100.00 when ever motor goes clock wise direction L S 2 (I 0.2) is in OFF state until motor touches . when motor touches L S 2 (I 0.2) motor stop for 3.5 sec and moves (C C W) direction until it