Automationdirect.com DL05 User Manual

Standard
RLL Instructions
5–79
Standard RLL Instructions
Bit Operation Instructions
SHFR
A aaa
Shift Right is a 32 bit instruction that shifts
the bits in the accumulator a specified
number (Aaaa) of places to the right. The
vacant positions are filled with zeros and
the bits shifted out of the accumulator are
lost.
Operand Data Type DL05 Range
A aaa
V memory V All (See page 4–28)
Constant K 1–32
Discrete Bit Flags Description
SP63 On when the result of the instruction causes the value in the accumulator to be zero.
SP70 On anytime the value in the accumulator is negative.
In the following example, when X1 is on, the value in V2000 and V2001 will be loaded
into the accumulator using the Load Double instruction. The bit pattern in the
accumulator is shifted 2 bits to the right using the Shift Right instruction. The value in
the accumulator is copied to V2010 and V2011 using the Out Double instruction.
Handheld Programmer Keystrokes
DirectSOFT
LDD
V2000
X1
Load the value in V2000 and
V2001 into the accumulator
SHFR
K2
The bit pattern in the
accumulator is shifted 2 bit
positions to the right
OUTD
V2010
Copy the value in the
accumulator to V2010 and
V2011
0011000100000001
V2010
01001100010000000000010000000000
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 031 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
4C4 0
S S S S
0001100111000001
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0110011100000101
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 1631 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Acc.
Acc.
V2011
19C1
Constant
6705 3101
Shifted out of the
accumulator
V2001 V2000
STR
$
SHFT
ANDST
L
3
D
3
D
SHFT
RST
S
7
H
5
F
2
C
ENT
OUT
GX
SHFT
3
D
ORN
R
SHFT
1
B
ENT
2
C
0
A
0
A
0
A
ENT
2
C
0
A
1
B
0
A
ENT
Shift Right
(SHFR)

Automationdirect.com DL05 Specifications

General

Brand	Automationdirect.com
Model	DL05
Category	Controller
Language	English