Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Ror

3 . Instruction

Set

API

Mnemonic

Operands

Function

Controllers

30

D

ROR

P

Rotation Right

ES2/EX2 SS2

SA2

SX2

SE

Type

Bit Devices

Word devices

Program Steps

OP

X

Y

M

S

K

H KnX KnY KnM KnS T

C

D

E

F

ROR, RORP: 5 steps

D

*

*

*

*

*

*

*

*

*

*

DROR, DRORP: 9 steps

n

PULSE

16-bit

32-bit

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

ES2/EX2 SS2

SA2

SX2

SE

SE

SE

Operands:

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

Explanations:

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

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

3.This instruction is generally used in pulse execution mode (RORP, DRORP).

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, the 16 bits (4 bits as a group) in D10 will rotate to the right, as shown in the figure below. The bit marked with ※ will be sent to carry flag M1022..

			X0						RORP					D10				K4
						Rotate to the right
D10	Upper bit															Lower bit			M1022	Carry
	0	1		1	1	1	0 1		1	0	1	0	0	0	1	0	1
																				flag
									16 bits
								After one rotation
	Upper bit								to the right							lower bit
																				M1022
D10	0	1		0	1 0		1	1	1	1	0	1	1	0	1	0	0		0
																				Carry
	*																			flag

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