Identify and Define the Four Types of Interests

question 29

Essay

Identify and define the four types of interests.

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Definitions:

Examine If Closed

A control logic instruction that checks whether a circuit or contact is closed (i.e., allowing current flow) before executing further actions.

Examine-On Instruction

In PLC programming, an Examine-On Instruction checks if a specified input or condition is true (e.g., if a switch is on) before executing subsequent instructions.

XIC Instruction

An "Examine if Closed" instruction in ladder logic programming, used to check if a contact is virtually closed in a control system.

Normally Open Relay

A type of electrical relay whose contacts are open in its resting state, closing to complete a circuit when activated.