Delta-electronics Extension Digital I/O Module DOP-EXIO14RAE Manual de usuario descargar pdf (Pagina 136)

Appendix D Use of Application Instructions|DOP-EXIO Series

Revision March, 2008, Doc. Name: 2007PDD23000014 D-55

Mnemonic Operands Function

SUM D

Sum of Active Bits

Bit Devices Word Devices

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

          

       

y Note:

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

16-bit instruction (5 Steps)

SUM

Continuous

execution

32-bit instruction (9 Steps)

DSUM

Continuous

execution

y Flags: M1020 (Zero flag)

Operands:

: Source device

: Destination device for storing counted value

Explanations:

1. Among the bits of S, the total of bits whose content is “1” will be stored in D.

2. When all the 16 bits of

S are “0”, zero flag M1020 = On.

3. When 32- instruction is in use,

D will occupy 2 registers.

Program Example:

When X10 = On, among the 16 bits of D0, the total of bits whose content is “1” will be stored in D2.

X10

SUM D0

0000 00011 100 0000 K3

D2D0

1 2 ... 131 132 133 134 135 136 137 138 139 140 141 ... 156 157

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Delta-electronics Extension Digital I/O Module DOP-EXIO14RAE Manual de usuario Pagina 136