PLC LADDER DIAGRAM

What does this symbol represents?

• A normal output

• Normally closed push button

• Normally open push button

• Inverted output

What does this LAD connection represents

• An interlock

• Latch

• Motor control

• Two ways to control an output

Which electric device can be used to perform an interlock?

• Capacitor

• Inductor

• DC motor

• Relay

In this LAD diagram, what happens if I1 is pressed

• Q1 = 0, Q2 = 0

• Q1 = 1, Q2 = 0

• Q1 = 0, Q2 = 1

• Q1 = 1, Q2 = 1

What is this symbol called?

• Normally Close contact

• Normally Open contact

• Output coil

• Timer

What is this symbol called?

• Normally Close contact

• Normally Open contact

• Ouptut Coil

• Timer

What is this symbol called?

• Normally Close contact

• Normally Open contact

• Output Coil

• Timer

Choose the symbol that is similar to this diagram.

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Choose the symbol that is similar to this diagram.

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What is the meaning of "download" ?

• To transfer the program to PC

• To retrieve the program from PLC

• To transfer the program to PLC

• To retrieve the program from PC