Automationdirect.com DirectLOGIC DL205 Series User Manual

DL205 User Manual, 4th Edition, Rev. B
5–129
Chapter 5: Standard RLL Instructions - Bit Operation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
Decode (DECO)
The Decode instruction decodes a 5 bit binary value of 0 to 31
(0 to 1F HEX) in the accumulator by setting the appropriate
bit position to a 1. If the accumulator contains the value F
(HEX), bit 15 will be set in the accumulator. If the value to be
decoded is greater than 31, the number is divided by 32 until
the value is less than 32 and then the value is decoded.
In the following example when X1 is on, the value formed by discrete locations X10–X14 is
loaded into the accumulator using the Load Formatted instruction. The five bit binary
pattern in the accumulator is decoded by setting the corresponding bit position to a “1” using
the Decode instruction.
þ
þ
þ
þ
230
240
250-1
260
DECO
Handheld Programmer Keystrokes
DirectSOFT
LDF X10
K
5
X
1
Load the value in
r
epresented by discrete
locations X10–X14 into the
accumulator
DECO
Decode the five bit binary
pattern in the accumulator
and set the corresponding
bit position to a “1”
O
FF
00000000000010110000000000000000
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.
00001000000000000000000000000000
1
5 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.
The binary vlaue
is converted to
bit position 11.
STR
$
ENT
SHFT
ANDST
L
3
D
5
F
1
B
1
B
0
A
ENT
5
F
SHFT
2
C
INST#
O
ENT
3
D
4
E
O
N OFF ON ON
X14 X13 X12 X11 X10
DS Used
HPP Used

Automationdirect.com DirectLOGIC DL205 Series Specifications

General

Brand	Automationdirect.com
Model	DirectLOGIC DL205 Series
Category	Controller
Language	English