DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-89
Chapter 5: Standard RLL Instructions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
NOTE: Status flags are valid only until another instruction uses the same flag.
In the following example, when X1 is on, the value in V2000 will be loaded into the accumulator
using the Load instruction. The value in V2006 is subtracted from the value in the accumulator
using the Subtract instruction. The value in the accumulator is copied to V2010 using the Out
instruction.
SUB
A aaa
Direct SOFT32
Handheld Programmer Keystrokes
LD
V2000
X1
Load the value in V2000 into
the lower 16 bits of the
accumulator
SUB
V2006
Subtract the value in V2006
from the value in the lower
16 bits of the accumulator
OUT
V2010
Copy the value in the lower
16 bits of the accumulator to
V2010
V2010
2
0
0
_
V2000
4
7
5
8
8
3
0
0
0
0
2
4
7
5
1
5
9
2
Acc.
8
8
3
The unused accumulator
bits are set to zero
SHFT
ANDST
L
3
D
STR
$
SHFT
SHFT
AND
V
2
C
0
A
0
A
ENT
6
G
OUT
GX
SHFT
AND
V
2
C
0
A
1
B
0
A
ENT
RST
S
ISG
U
1
B
1
B
ENT
2
C
0
A
0
A
0
A
ENT
Operand Data Type
DL06Range
A
aaa
V-memory
V
See memory map
Pointer
P
See memory map
Discrete Bit Flags
Description
SP63
On when the result of the instruction causes the value in the accumulator to be zero.
SP64
On when the 16-bit subtraction instruction results in a borrow
SP65
On when the 32-bit subtraction instruction results in a borrow
SP70
On anytime the value in the accumulator is negative.
SP75
On when a BCD instruction is executed and a NON–BCD number was encountered.
DS
Used
HPP Used
Direct
SOFT
Subtract (SUB)
Subtract is a 16-bit instruction that subtracts the BCD value
(Aaaa) in a V-memory location from the BCD value in the
lower 16 bits of the accumulator. The result resides in the
accumulator.