AutomationDirect DL105, Руководство пользователя

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Standard
RLL
Instructions
5--81
Standard RLL Instructions
Interrupt Instructions
DL105 PLC User Manual, 3rd Edition
In the following example, we do some initialization on the first scan, using the
first-scan contact SP0. The interrupt feature is the HSIO Mode 40. Then we
configure X0 as the external interrupt by writing to its configuration register, V7634.
See Chapter 3, Mode 40 Operation for more details.
During program execution, when X2 is on the interrupt is enabled. When X2 is off the
interrupt will be disabled. When an interrupt signal (X0) occurs the CPU will jump to
the interrupt label INT O 0. The application ladder logic in the interrupt routine will be
performed. The CPU will return to the main body of the program after the IRT
instruction is executed.
Direct SOFT
INT O 0
X2
ENI
DISI
S
S
S
X2
END
Y5
SETI
X1
Y7
SETI
X3
IRT
Handheld Programmer Keystrokes
S
S
8
I
ORN
R
MLR
T
STR
$
SHFT
8
I
1
B
ENT
SHFT
8
I
5
F
ENT
STR
$
SHFT
8
I
3
D
ENT
SHFT
8
I
ENT
7
H
SHFT
4
E
TMR
N
3
D
ENT
STR
$
ENT
2
C
SHFT
4
E
TMR
N
8
I
ENT
STRN
SP
ENT
2
C
SHFT
8
I
TMR
N
MLR
T
0
A
ENT
SHFT ENT
SHFT ENT
3
D
8
I
RST
S
8
I
SET
X
SET
X
LD
K40
SP0
Load the constant value
(K40) into the lower 16 bits
of the accumulator
OUT
V7633
Copy the value in the lower
16 bits of the accumulator to
V7633
LD
K4
Load the constant value (K4)
into the lower 16 bits of the
accumulator
OUT
V7634
Copy the value in the lower
16 bits of the accumulator to
V7634
STR
$
SHFT
ANDST
L
3
D
SHFT
OUT
GX
SHFT
AND
V
ENT
JMP
K
ENT
7
H
6
G
3
D
4
E
SHFT
ANDST
L
3
D
SHFT
0
A
OUT
GX
SHFT
AND
V
ENT
JMP
K
4
E
ENT
7
H
6
G
3
D
3
D
4
E
SHFT ENT
STRN
SP
0
A
NOTE: Only one interrupt is available in the DL105 and it must be Int 0.
External Interrupt
Program Example