Delta-electronics Extension Digital I/O Module DOP-EXIO14RAE Instrukcja Użytkownika Pobierz pdf (Strona 119)

Appendix D Use of Application Instructions|DOP-EXIO Series

D-38

Revision March, 2008, Doc. Name: 2007PDD23000014

Mnemonic Operands Function

DEC D

BIN

減一

Bit Devices Word Devices

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

       

y Note:

1. If D is used in device F, only 16-bit instruction is applicable.

16-bit instruction (3 Steps)

DEC

Continuous

execution

32-bit instruction (5 Steps)

DDEC

Continuous

execution

y Flags: None

Operands:

: Destination device

Explanations:

1. 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.

2. 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.

3. The operation results will not affect any flags.

Program Example:

When X0 = Off→On, the content in D0 minuses 1 automatically.

DECP D0

1 2 ... 114 115 116 117 118 119 120 121 122 123 124 ... 156 157

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Delta-electronics Extension Digital I/O Module DOP-EXIO14RAE Instrukcja Użytkownika Strona 119