DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-110
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 V1400 and V1401 will be loaded into
the accumulator using the Load Double instruction. The value in V1420 and V1421 is loaded
into the accumulator using the Load Double instruction, pushing the value previously loaded
in the accumulator onto the accumulator stack. The value in the first level of the accumulator
stack is added with the value in the accumulator using the Add Stack instruction. The value in
the accumulator is copied to V1500 and V1501 using the Out Double instruction.
ADDS
Direct
S OF T 32 Display
LDD
V1400
X1
Load the value in V1400 and
V1401 into the accumulator
LDD
V1420
Load the value in V1420 and
V1421 into the accumulator
OUT D
V1500
C opy the value in the
accumulator to V1500
and V1501
X
X
X
X X
X
X
X
Level 1
X
X
X
X X
X
X
X
Level 2
X
X
X
X X
X
X
X
Level 3
X
X
X
X X
X
X
X
Level 4
X
X
X
X X
X
X
X
Level 5
X
X
X
X X
X
X
X
Level 6
X
X
X
X X
X
X
X
Level 7
X
X
X
X X
X
X
X
Level 8
0
0
3
9
5
0
2
6
Level 1
X
X
X
X X
X
X
X
Level 2
X
X
X
X X
X
X
X
Level 3
X
X
X
X X
X
X
X
Level 4
X
X
X
X X
X
X
X
Level 5
X
X
X
X X
X
X
X
Level 6
X
X
X
X X
X
X
X
Level 7
X
X
X
X X
X
X
X
Level 8
ADDS
Add the value in the
accumulator with the value
in the first level of the
accumulator stack
Acc.
V1400
5
0
2
6
0
0
3
9
5
0
2
6
V1401
0
0
3
9
Acc.
V1420
2
0
5
6
0
0
1
7
2
0
5
6
V1421
0
0
1
7
Accumulator stack
after 1st LDD
Accumulator stack
after 2nd LDD
Acc.
0
0
5
6
7
0
8
2
0
0
5
6
7
0
8
2
Handheld Programmer Keystrokes
SHFT
ANDST
L
3
D
STR
$
SHFT
3
D
3
D
OUT
GX
SHFT
3
D
1
B
5
F
0
A
0
A
ENT
1
B
ENT
1
B
4
E
0
A
0
A
ENT
ENT
SHFT
ANDST
L
3
D
1
B
4
E
2
C
0
A
ENT
3
D
RST
S
3
D
0
A
V1501
V1500
Discrete Bit Flags
Description
SP63
On when the result of the instruction causes the value in the accumulator to be zero.
SP66
On when the 16-bit addition instruction results in a carry.
SP67
On when the 32 bit addition instruction results in a carry.
SP70
On anytime the value in the accumulator is negative.
SP73
On when a signed addition or subtraction results in an incorrect sign bit.
SP75
On when a BCD instruction is executed and a NON-BCD number was encountered.
DS
Used
HPP Used
Direct
SOFT
Add Top of Stack (ADDS)
Add Top of Stack is a 32-bit instruction that adds the BCD value
in the accumulator with the BCD value in the first level of the
accumulator stack. The result resides in the accumulator. The
value in the first level of the accumulator stack is removed and all
stack values are moved up one level.
