Automationdirect.com DirectLOGIC DL205 Series User Manual

DL205 User Manual, 4th Edition, Rev. B
5–113
Chapter 5: Standard RLL Instructions - Math
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
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.
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.
ý
ý
ý
þ
230
240
250-1
260
ADDS
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.
SP75 On when a BCD instruction is executed and a NON-BCD number was encountered.
LDD
V1400
X1 Load the value in V1400 and
V1401 i nto the accum ul ator
LDD
V1420
Load the val ue in V1420 and
V1421 i nto the accum ul ator
OUTD
V1500
Copy the value in the
accum ul ator to V1500
and V1501
XXXXXXXXLevel 1
XXXXXXXXLevel 2
XXXXXXXXLevel 3
XXXXXXXXLevel 4
XXXXXXXXLevel 5
XXXXXXXXLevel 6
XXXXXXXXLevel 7
XXXXXXXXLevel 8
00395026Level 1
XXXXXXXX
Level 2
XXXXXXXXLevel 3
XXXXXXXX
Level 4
XXXXXXXXLevel 5
XXXXXXXX
Level 6
XXXXXXXXLevel 7
XXXXXXXX
Level 8
ADDS
Add the value in the
accum ul ator w ith the value
in the fi r st level of the
accum ul ator stack
Acc.
V1400
5026
0039 5026
V1401
0039
Acc.
V1420
2056
0017 2056
V1421
0017
Accum ulator stack
after 1st LD D
Accum ulator stack
after 2nd LD D
Acc.
0056 7082
0056 7082
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
DirectSOFT
DS Used
HPP Used

Automationdirect.com DirectLOGIC DL205 Series Specifications

General

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