A system consists of one 24V d.c.motor (denoted by M), one double acting cylinder (denoted A) with two limit switches (a0 and al) is controlled by a 5/2 double solenoid valve. The system is controlled by a PLC for the following sequence: cylinder A extends and retracts for 100 times 1. A pushbutton, PBO, is pressed momentarily 2. 3. 4. Right after cylinder A completes the oscillation, motor M starts to turn clockwise for 20 seconds, Motor M then halts for 2 seconds, 5. Motor M turns counter-clockwise for 60 seconds, then system resets and wait for PB0 input again Assume: PLC model: NAIS FPΣ (FPG-C32T2H) The 24V d.c. motor can be driven directly from the output port of the PLC. The two solenoids in the valve use 24Vd.c. Submit: (i) (ii) (iii) I/O Assignment Table (10%) Electro-pneumatic sub-circuit (6%) Wiring diagram (partially given below) (10%) (iv) PLC Ladder (24%) Input Output РВО хо Y1 AO (NO, HC) X1 Y2- A1 (NO) 义 X2 -X3 X4 4 Y4 34 Y3 COM COM External 24V Supply External 24V Supply