Automationdirect.com DL06, User Manual

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DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-112
Chapter 5: Standard RLL Instructions
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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 will be loaded into the accumulator
using the Load instruction. The value in V1420 is loaded into the accumulator using the Load
instruction, pushing the value previously loaded in the accumulator onto the accumulator
stack. The BCD value in the first level of the accumulator stack is multiplied by the BCD
value in the accumulator using the Multiply Stack instruction. The value in the accumulator is
copied to V1500 and V1501 using the Out Double instruction.
MULS
St
andar
dR
LL
DirectSOFT32 Display
LD
V1400
X1 Load the value in V1400 into
the accumulator
LD
V1420
Load the value in V1420 into
the accumulator
OUTD
V1500
Copy 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 0 0 5 0 0 0 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
MULS
Multiply the value in the
accumulator with the value
in the first level of the
accumulator stack
Acc.
V1400
5 0 0 0
0 0 0 0 5 0 0 0
Acc.
V1420
0 2 0 0
0 0 0 0 0 2 0 0
Accumulator stack
after 1st LDD
Accumulator stack
after 2nd LDD
Acc. 0
1 0 0 0 0 0 0
0 1 0 0 0 0 0 0
V1500 V1501
The unused accumulator
bits are set to zero
The unused accumulator
bits are set to zero
Handheld Programmer Keystrokes
SHFT
ANDST
L
3
D
STR
$
SHFT
ORST
M
ISG
U
ANDST
L
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
RST
S
ENT
Discrete Bit Flags Description
SP63 On when the result of the instruction causes the value in the accumulator to be zero.
SP70 On any time 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
Multiply Top of Stack (MULS)
Multiply Top of Stack is a 16-bit instruction that multiplies a
4-digit BCD value in the first level of the accumulator stack by
a 4-digit BCD value in the accumulator. 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.