DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-106
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 X6 is on, the BCD value formed by discrete locations
X0–X3 is loaded into the accumulator using the LDF instruction. The BCD value formed
by discrete locations C0–C3 is added to the value in the accumulator using the ADDF
instruction. The value in the lower four bits of the accumulator is copied to Y10–Y13 using
the OUTF instruction.
bbb
K
ADDF
A aaa
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.
Operand Data Type
DL06 Range
A
aaa
bbb
Inputs
X
0–777
––
Outputs
Y
0–777
––
Control Relays
C
0–1777
––
Stage Bits
S
0–1777
––
Timer Bits
T
0–377
––
Counter Bits
CT
0–177
––
Special Relays
SP
0-137 320-717
––
Global I/O
GX
0-3777
––
Constant
K
––
1–32
DirectSOFT
LDF
X0
K4
X6
Load the BCD value represented
by discrete locations X0–X3
into the accumulator
ADDF
C0
K4
Add the BCD value in the
accumulator with the value
represented by discrete
location C0–C3
OUTF
Y10
K4
Copy the lower 4 bits of the
accumulator to discrete
locations Y10–Y13
+
0 0 0 0 0 0 0
8
(C0-C3)
(Accumulator)
3
X0
X1
X2
X3
OFF
OFF
OFF
ON
C0
C1
C2
C3
ON
ON
OFF
OFF
Y10
Y11
Y12
Y13
ON
OFF
OFF
OFF
The unused accumulator
bits are set to zero
Acc.
Handheld Programmer Keystrokes
STR
$
SHFT
3
D
3
D
OUT
GX
SHFT
5
F
0
A
4
E
ENT
6
G
ENT
1
B
4
E
0
A
ENT
SHFT
ANDST
L
3
D
0
A
4
E
ENT
5
F
5
F
0
A
NEXT
NEXT
NEXT
NEXT
0
1
1
0
0
0
0
0
DS
Used
HPP Used
Add Formatted (ADDF)
Add Formatted is a 32-bit instruction that adds the BCD value
in the accumulator with the BCD value (Aaaa) which is a range
of discrete bits. The specified range (Kbbb) can be 1 to 32
consecutive bits. The result resides in the accumulator.