Delta DVP-ES2 User Manual
Page 207
3 . I n s t r u c t i o n S e t
3 - 9 1
API Mnemonic Operands
Function
30
D ROR P
Rotation Right
Controllers
ES2/EX2 SS2
SA2
SE
SX2
Bit Devices
Word devices
Program Steps
Type
OP
X Y
M S K H KnX KnY KnM KnS T C D E F
D
*
*
*
*
*
*
*
*
n
*
*
ROR, RORP: 5 steps
DROR, DRORP: 9 steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
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..
0 1 1
1 0
1 0 1
0
0 1
1
1
0 0
1
0
1 0 1 1
1 0
0 1
1
1
1
0
0
1
0
0
Upper bit
Lower bit
Upper bit
lower bit
*
X0
RORP
D10
K4
Rotate to the right
16 bits
Carry
flag
Carry
flag
After one rotation
to the right
D10
D10
M1022
M1022
M1022