Symbol and equivalent instruction for NO contact:

Examine if Open (XIO) is one of the fundamental symbols that is used to translate relay control logic to contact symbolic logic.

The XIO instruction is represented by the symbol which almost resembles a normally-open relay contact.

Examine-OFF instruction is another name for XIO instruction.

This instruction asks the processor to examine whether the contact is OPEN or not.

The symbol used to represent a NO contact is as follows

Symbol and equivalent instruction for NC contact:

Examine if Closed (XIC) is one of the fundamental symbols that is used to translate relay control logic to contact symbolic logic.

The XIC instruction is represented by the symbol which almost resembles a normally-closed relay contact...

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Chapter 5, Problem 10RQ

Chapter 5, Problem 12RQ

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Pls follow the instruction and complete the code

The ON state of bool type variable can be expressed by: O Only normally open contact instruction. Normally open or normally closed contact instructions. Only normally closed contact instruction.

The OFF state of bool type variable can be expressed by: Only normally closed contact instruction. O Only normally open contact instruction. Normally open or normally closed contact instructions.

Chapter 5 Solutions

Programmable Logic Controllers

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