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10 Applied Instructions (Rotation and Shift Operation)
10.2 ROL / Rotation Left
199
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
1
Outline
2
Instruction List
3
Configuration of
Instruction
4
How to Read
Explanation of
Instructions
5
Basic Instruction
6
Step Ladder
Instructions
7
Applied Instructions
(Program Flow)
8
Applied Instructions
(Move and
Compare)
9
Applied Instructions
(Arithmetic and
Logical Operation)
10
Applied Instructions
(Rotation and
Shift Operation)
10.2 ROL / Rotation Left
Outline
This instruction shifts and rotates the bit information leftward by the specified number of bits without the carry
flag.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
ROL 16 bits Continuous ROL(EN,n,d);
ROLP 16 bits Pulse ROLP(EN,n,d);
DROL 32 bits Continuous DROL(EN,n,d);
DROLP 32 bits Pulse DROLP(EN,n,d);
Variable Description
Data type
16-bit
operation
32-bit
operation
Input
variable
EN Execution condition Bit
Number of bits to be rotated
[n
≤16] (16-bit operation), [n≤32] (32-bit operation)
ANY16
Output
variable
ENO Execution state Bit
Word device storing data to be rotated leftward ANY16 ANY32
Operand
type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index
Constant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
V Z Modifier K H E
""
P
S2 S3
zz
S1 S1 S1
zz z
S3 S4
zz z
ROL
EN
n
ENO
d
ROLP
EN
n
ENO
d
DROL
EN
n
ENO
d
DROLP
EN
n
ENO
d