Definition

The Unpack Copy mode of the Copy Instruction supports the following functions:

• Separate the status of a Source Data Register (DS or DH) and copy into up to 16 Destination Bit Memory Addresses (Y or C).
• Separate the status of a Source Data Register (DD or DF) and copy into up to 32 Destination Bit Memory Addresses (Y or C).
• Separate the Double-Words Source Data Register (DD or DF) and store into two Single-Word Destination Word Memory Addresses (DS or DH).

Refer to the example programs at the end of this Help topic.

Destination

Bits

Registers

Y

C

DS

DD

DH

DF

YD

TD

CTD

SD

TXT

Source

Bits

X, Y, T, CT, SC

C

Registers

DS

●

DD

●

●

●

DH

●

●

DF

●

●

●

XD, YD, TD, CTD

SD

TXT

Constant

Decimal, Hex

String, ASCII Code

 

 

Setup

1 Copy Type: Select Unpack Copy to copy from a single Memory Address.

2 Source: Enter a DS or DH Memory Address (DD or DF Double-Word that has the data to Copy to the destinations.

3a Destination: For Word Sources, enter the starting C or Y Address. For Double-Word sources, enter the starting C, Y, DS, or DH Address.

3b Destination: Enter the ending address (Max 32 consecutive Bit addresses or 2 consecutive Word addresses.).

4Option: The Option field is not used in this mode.

5 One Shot: Choose One Shot to execute the Pack Copy instruction one time when the enabling rung makes an OFF-to-ON transition. If One Shot is selected, the One Shot symbol will appear adjacent to the Coil in the Ladder Editor.

6About Error Flag:SC43 and SC44 are Error Flags available for use in your program. SC43 Out of Range is valid for Single, Block, and Pack Copy modes. SC44 Address Error is valid for Single Copy mode when using a Pointer Address.

Example Program

Example Program: Unpack Copy a Range to C15 through C19

In the following example, when X001 is ON, the SourceDH2 is copied to Destinations C15 through C19.

Related Topics:

Single Copy
Block Copy
Fill
Pack Copy
Casting Datatypes
Pointer Addressing