Delta-electronics Programmable Logic Controller DVP-PLC Manual do Utilizador Página 252

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
  • Página
    / 586
  • Índice
  • MARCADORES
  • Avaliado. / 5. Com base em avaliações de clientes
Vista de página 251
6 Application Instructions API 00-49
DVP-PLC Application Manual
6-40
API Mnemonic Operands Function
25
D DEC P
Decrement
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
D
* * * * * ***
DEC, DECP: 3 steps
DDEC, DDECP: 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:
D: Destination device
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. If the instruction is not a pulse execution one, the content in the designated device D will minus “1” in every scan
period whenever the instruction is executed.
4. This instruction adopts pulse execution instructions (DECP, DDECP).
5. In 16-bit operation, -32,768 minuses 1 and obtains 32,767. In 32-bit operation, -2,147,483,648 minuses 1 and
obtains 2,147,483,647.
6. The operation results will not affect M1020 ~ M1022.
Program Example:
When X0 = OffOn, the content in D0 minuses 1 automatically.
X0
DECP D0
Vista de página 251
1 2 ... 247 248 249 250 251 252 253 254 255 256 257 ... 585 586

Comentários a estes Manuais

Sem comentários