Siemens SIMATIC S7-200 Manual - Page 24

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First programming exercise

4.4 Function and Test of the first exercise program

4.4

Function and Test of the first exercise program

In the first exercise program, switch S0 turns

the motor on and off. Switch S1 changes the

direction of the motor.

Switches S0 and S1 are the first two

switches on the input simulator. These

switches provide 24 V DC to inputs I0.0 and

I0.1 on the CPU. The output simulator is

connected to Q0.0 and Q0.1 on the CPU.

Q0.0 turns the motor on and off. Q0.1

changes the direction of the motor.

With the exercise program, the signal state

of I0.0 is assigned to output Q0.0 and the

signal state of I0.1 is assigned to Q0.1

Getting Started - Beginners

Training Documents, 07/2007, A5E01031470B