Delta DVP-ES2 User Manual download pdf (Page 198)

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101

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

3-82

API Mnemonic Operands Function

D DEC P

Decrement

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

* * * * * ***

DEC, DECP: 3 steps

DDEC, DDECP: 5 steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

D: Destination device

Explanation:

1. If the instruction is not used in pulse execution mode, the content in the designated device D

will minus “1” in every scan whenever the instruction is executed.

2. This instruction is generally used in pulse execution mode (DECP, DDECP).

3. In 16-bit instruction, if –32,768 is reached and “1” is minused, it will write a value of +32,767

to the destination. In 32-bit instruction, if -2,147,483,648 is reached and “1” is minused, it will

write a value of +2,147,483,647 to the destination.

4. If operand D uses index F, only a 16-bit instruction is applicable.

5. The operation results will not affect M1020 ~ M1022

Program Example:

When X0 is triggered, the value in D0 will be decremented by 1.

DECP

1 2 ... 193 194 195 196 197 198 199 200 201 202 203 ... 701 702

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