Delta DVP-ES2 User Manual download pdf (Page 220)

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101

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

3-104

API Mnemonic Operands Function

DECO P

Decode

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

* * * * * * * * ***

* * * * * ***

n * *

DECO, DECOP: 7 steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

S: Source device to be decoded D: Device for storing the result n: Number of consecutive

bits of S

Explanation:

1. The instruction decodes the lower “n” bits of S and stores the result of “2

” bits in D.

2. This instruction is generally used in pulse execution mode (DECOP).

3. When operand D is a bit device, n = 1~8, when operand D is a word device, n = 1~4

Program Example 1:

1. When D is used as a bit device, n = 1 ~ 8. Errors will occur if n = 0 or n > 8.

2. If n = 8, the decoded data is 2

= 256 bits data.

3. When X20 goes from OFF to ON, the data of X0~X2 will be decoded to M100~M107.

4. If the source data is 3, M103 (third bit from M100) = ON.

5. After the execution is completed, X20 is turned OFF. The decoded results or outputs will retain

their operation.

DECOP X0 K3M100

X20

X2 X1 X0

M107 M106 M105 M104 M103 M102 M101 M100

011

0000 000

76 54 210

4 12

1 2 ... 215 216 217 218 219 220 221 222 223 224 225 ... 701 702

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Delta DVP-ES2 User Manual Page 220

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