Automationdirect.com DL06 - Page 242

DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-81
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 constant 4526 will be loaded into the lower 16
bits of the accumulator using the LD instruction. The value in the accumulator is compared
with the value in V2000 using the CMP instruction. The corresponding discrete status flag
will be turned on indicating the result of the comparison. In this example, if the value in
the accumulator is less than the value specified in the CMP instruction, SP60 will turn on,
energizing C30.
CMP
A aaa
Discrete Bit Flags Description
SP60 On when the value in the accumulator is less than the instruction value.
SP61 On when the value in the accumulator is equal to the instruction value.
SP62 On when the value in the accumulator is greater than the instruction value.
Handheld Programmer Keystrokes
V2000
Acc.
CONSTANT
4526 ?
8945
000045264526 ??
LD
Compare the value in the
accumulator with the value
in V2000
Load the constant value
4526 into the lower 16 bits of
the accumulator
K4526
CMP
X1
V2000
Compared
with
SP60 C30
DirectSOFT
The unused accumulator
bits are set to zero
STR
$
SHFT
ANDST
L
3
D
SHFT
JMP
K
4
E
5
F
2
C
6
G
ENT
SHFT
2
C
ORST
M
CV
P
STR
$
SHFT ENT
STRN
SP
6
G
0
A
OUT
GX
SHFT
2
C
3
D
0
A
ENT
1
B
ENT
2
C
0
A
0
A
0
A
ENTSHFT
OUT
Operand Data Type DL06 Range
A
aaa
V-memory V See memory map
Pointer P See memory map
DS Used
HPP Used
Compare (CMP)
The CMP instruction is a 16-bit instruction that compares the
value in the lower 16 bits of the accumulator with the value in
a specified V-memory location (Aaaa). The corresponding status
flag will be turned on indicating the result of the comparison. The
data format for this instruction is BCD/Hex, Decimal and Binary.
DirectSOFT