Delta Electronics Programmable Logic Controller DVP-PLC - Manual (Page 468)

8 Application Instructions API 100-149
DVP-PLC Application Manual 8-66
API Mnemonic Operands Function
147 D SWAP P Byte Swap
Controllers
ES/EX/SS SA/SX/SC EH/SV
Bit Devices Word Devices Program Steps Type
OP 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
ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV
Operands:
S : Device for swapping 8 high/low byte.
Explanations:
1. If D is used in device F, only 16-bit instruction is applicable.
2. See the specifications of each model for their range of use.
3. As 16-bit instruction: the contents in the 8 high bytes and 8 low bytes are swapped.
4. As 32-bit instruction: the 8 high bytes and 8 low bytes in the two registers swap with each other respectively.
5. This instruction adopts pulse execution instructions (SWAPP, DSWAPP).
Program Example 1:
When X0 = On, the high 8 bytes and low 8 bytes in D0 will swap with each other.
D0 SWAPP
X0
D0
High Byte Low Byte
Program Example 2:
When X0 = On, the high 8 bytes and low 8 bytes in D11 will swap with each other and the high 8 bytes and low 8
bytes in D10 will swap with each other.
X0
DSWAPP D10
D10 D11
High Byte High Byte Low Byte Low Byte