Delta DVP-ES2 User Manual download pdf (Page 208)

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101

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

3-92

API Mnemonic Operands Function

D ROL P

Rotate Left

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 * *

ROL, ROLP: 5 steps

DROL, DROLP: 9 steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

D: Device to be rotated n: Number of bits to be rotated in 1 rotation

Explanation:

1. This instruction rotates bit status of the device D to the left for n bits

2. The status of the last bit rotated (marked with ※) is copied to the carry flag M1022.

3. This instruction is generally used in pulse execution mode (ROLP, DROLP).

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

5. If operand D is specified as KnY, KnM or KnS, only K4 (16-bit) or K8 (32-bit) is valid.

6. Valid range of operand n: 1≤ n ≤16 (16-bit), 1≤ n ≤32 (32-bit)

Program Example:

When X0 goes from OFF to ON, all the 16 bits (4 bits as a group) in D10 will rotate to the left, as

shown in the figure below. The bit marked with ※ will be sent to carry flag M1022.

D10 K4

111 11 100 0 0011 000

11000001100110111

16 bits

Rotate to the left

fter one rotation

to the left

Carry

flag

Carry

flag

D10

Upper bit

Lower bit

ROLP

M1022

1 2 ... 203 204 205 206 207 208 209 210 211 212 213 ... 701 702

Delta DVP-ES2 User Manual Page 208

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