Rol (Fnc 31) - Mitsubishi FX1S Series Programming Manual

FX Series Programmable Controlers
5.4.2

ROL (FNC 31)

Mnemonic
ROL
FNC 31
(Rotation
left)
16 BIT OPERATION
Function
The bit pattern of KnY, KnM, KnS,
the destination T, C, D, V, Z
device is rotated Note:
'n' places to the 16 bit operation
left on every Kn= K4,
execution 32 bit operation
Kn= K8
32 BIT OPERATION
Operands
S
K, H,
)
Note:
16 bit operation n ≤ 16
32 bit operation n≤ 32
PULSE-P
Operation:
The bit pattern of the destination device (D) is rotated
n bit places to the left on every operation of the
instruction.
The status of the last bit rotated is copied to the carry
flag M8022.
The example shown left is based on the instruction
noted above it, where the bit pattern represents the
contents of D0.
Applied Instructions 5
FX FX
FX
1N 2N
1S
Program steps
D
ROL,ROLP:
5 steps
DROL,
DROLP:
7 steps
Flags
Carry M8022
5-44
FX
2NC