I/O allocation:

X0: FR normally open

X1：SB1 

X2：SB2

X3：SB3

X4：KS-1

X5：KS-2

Y1: Forward contactor coil 1

Y2: Reverse contactor 2 coils

1、 PLC wiring diagram

2、 Operation steps:

1. Turn on the power supply of the test bench and PLC

2. PLC is in ST O P state (i.e. paddle down)

3. Open programming software FXGPWIN → New file → PLC type settings → FX1N

4. Draw ladder diagram → Convert → Save (The file name and path should not be in Chinese, and the file name should start with a letter and can be accompanied by a number; because the C drive has restoration, the file must be saved on the D drive; the file header can be filled in freely)

5. PLC → Port settings (if the data cable is connected to the upper part behind the computer host, select COM1)

If the data cable is connected to the lower part behind the computer host, select COM2

PLC → Transmission → Write → Range Setting (Range can be checked in the instruction table)

6. PLC is in RUN state (i.e. paddle up), computer is turned off

7. Connect the main circuit diagram and PLC wiring diagram, power on after connecting the wires, and press the control button

Because some students connected the wrong wires causing tripping, it is best to first transfer the program to the PLC and then shut down the computer to avoid damaging it.

3、 PLC ladder diagram