Main Content

COP

  • Library:
  • COP block

Description

The COP block implements the COP instruction. When the rung conditions are true, the block is used to copy the data of the source and store it at the destination, keeping the source unchanged.

Limitations

  • Source and destination elements support only numerical data types.

  • Source initial element index and destination element initial index start from zero.

Ports

Input

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Controls the execution of the block. EnableIn reflects the rung state preceding the block. If the rung state preceding the block is false, EnableIn is false, the block does not execute and the outputs are not updated.

It gives the value stored at source. This data is copied into destination.

Data Types: int8 | int16 | int32 | int64 | single | String | Structure

It gives the number or source elements to copy.

Data Types: int8 | int16 | int32

Output

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By default, EnableOut follows the state of EnableIn. If the EnableIn input to the block is false, the logic implemented by the block is not executed and EnableOut signal is set to false.

Parameters

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Source Start Index is used only when the source is an array. It specifies the index of the first element to be copied into destination. If the source is not an array, then the value of Source Inital Element Index is 1.

Programmatic Use

Block Parameter: PLCSRCArrayIndex
Type: scalar
Value: scalar
Default: 1

Data Types: int8 | int16 | int32 | single

The data copied from source is stored in destination. The destination is specified in the format of tags. In Ladder Diagrams, tags (variables) are used for representing all inputs, outputs, and internal memory with attributes such as Data Type, Initial Value, and size. To change the attributes of the Destination Array Name, open the Program Variables table within the Ladder Diagram Program block.

Programmatic Use

Block Parameter: PLCOperandTag
Type: character vector
Value: character vector
Default: 'A'

Destination Start Index is used only when the source is an array. It specifies the start index of destination where the data is copied. If the source and destination data is not stored in an array, then the value of Destination Initial Element Index is 1.

Programmatic Use

Block Parameter: PLCDestArrayIndex
Type: scalar
Value: scalar
Default: 0

Data Types: int8 | int16 | int32 | single

See Also

Introduced in R2019a