Delta DVP-ES2 User Manual download pdf (Page 444)

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101

DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

3-328

API Mnemonic Operands Function

147

D SWAP P

Byte swap

Controllers

ES2/EX2 SS2 SA2

SX2

Bit Devices Word devices Program Steps Type

X Y M S K H KnX KnY KnM KnS T C D E F

S * * * * * ***

SWAP, SWAPP: 3 steps

DSWAP, DSWAPP: 5

steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

S: Device for byte swap.

Explanations:

1. For 16-bit instruction, high byte and low byte of the register will be swapped.

2. For 32-bit instruction, byte swap is conducted on the 2 registers separately.

3. This instruction adopts pulse execution instructions (SWAPP, DSWAPP)

4. If operand D uses device F, only 16-bit instruction is available

Program Example 1:

When X0 = ON, high byte and low byte of D0 will be swapped.

SWAPP

High Byte Low Byte

Program Example 2:

When X0 = ON, high byte and low byte of D11 will be swapped as well as the high byte and low byte

of D10.

D10DSWAP

D11

High Byte Low Byte

D01

High Byte Low Byte

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