AutomationDirect DL105, User Manual

Page: 225 / 350

Standard
RLL
Instructions
5--65
Standard RLL Instructions
Math Instructions
DL105 PLC User Manual, 3rd Edition
DIV
A aaa
Divide is a 16 bit instruction that divides
the BCD value in the accumulator by a
BCD value (Aaaa), which is either a
V--memory location or a 4-digit (max.)
constant. The first part of the quotient
resides in the accumulator and the
remainder resides in the first stack
location.
Operand Data Type DL130 Range
A aaa
V--memory V All (See page 4--29)
Constant K 0--9999
Discrete Bit Flags Description
SP53 On when the value of the operand is larger than the accumulator can work
with.
SP63 On when the result of the instruction causes the value in the accumulator
to be zero.
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.
NOTE: The status flags are only valid until another instruction that uses the same
flags is executed.
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 the accumulator will be divided
by the value in V2006 using the Divide instruction. The value in the accumulator is
copied to V2010 using the Out instruction.
Direct SOFT
Handheld Programmer Keystrokes
LD
V2000
X1
Load the value in V2000 into
the lower 16 bits of the
accumulator
DIV
V2006
The value in the
accumulator is divided by
the value in V2006
OUT
V2010
Copy the value in the lower
16 bits of the accumulator to
V2010
V2010
5
­
(V2006)
(Accumulator) 0
5
V2000
0 0 0
1 0 0
0 0 0 0 0 0
4 9
Acc.
1 0 2
The unused accumulator
bits are set to zero
0 0 2 0 0 0 0 0
First stack location contains
the remainder
STR
$
SHFT
ANDST
L
3
D
SHFT
3
D
8
I
AND
V
OUT
GX
SHFT
AND
V
2
C
0
A
1
B
0
A
ENT
1
B
ENT
2
C
0
A
0
A
0
A
ENT
2
C
0
A
0
A
ENT
6
G
Divide
(DIV)