6F3B0250
184
T1/T1S User’s Manual
7. Instructions
FUN 070
SHR
n bit shift right
Expression
Input
-
[
A
SHR
n
®
B
]
-
Output
Function
When the input is ON, the data of register
A is shifted n bits to the right (LSB direction) including the
carry flag (CF = S050), and stored in
B. 0 is stored in upper n bits. After the operation, if the right most
bit (LSB) is ON, the output is turned ON.
Execution condition
Input
Operation
Output
CF
OFF
No execution
OFF
-
ON
Execution
When LSB = 1
ON
Set or reset
When LSB = 0
OFF
Set or reset
Operand
Name
Device
Register
Constant Index
X
Y
R
S
T.
C. XW YW RW SW
T
C
D
I
J
K
A
Source
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
n
Shift bits
1 - 16
B
Destination
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Example
When X007 is changed from OFF to ON, the data of RW18 is shifted 5 bits to the right and the
result is stored in RW20.
The figure below shows an operation example.
(MSB)
(LSB)
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
RW18
0 1 0 0 0 0 1 0 1 0 0 1 1 0 1 0
CF
RW20
0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0
1
(Result)
0
R001 is turned OFF
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: [email protected]