Delta DVP-PLC, Applications Manual

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3 Basic Instructions
DVP-PLC Application Manual 3-16
Program Example:
Ladder diagram: Instruction code: Operation:
LD X0 Loading in A contact of X0
CJ P10 From instruction CJ to P10
:
P10
Pointer P10
LD X1 Loading in A contact of X1
X0
Y1
CJ P10
X1
P10
OUT Y1 Driving Y1 coil
Mnemonic Function Program steps
I Interruption program marker (I) 1
Controllers
ES EX SS SA SX SC EH SV
Operand
I00
□
, I10
□
, I20
□
, I30
□
, I40
□
, I50
□
, I6
□□
, I7
□□
, I8
□□
I010, I020, I030, I040, I050, I060, I110, I120, I130, I140, I150, I160, I170, I180
Explanations:
A interruption program has to start with a interruption pointer (I
□□□
) and ends with API 03 IRET. I instruction has to
be used with API 03 IRET, API 04 EI, and API 05 DI. See Chapter 2.9 for pointers of all DVP series PLCs.
Program Example:
Ladder diagram: Instruction code: Operation:
EI Enabling interruption
LD X1 Loading A contact of X1
OUT Y1 Driving Y1 coil
:
DI Disabling interruption
:
FEND Main program ends
I001
Interruption pointer
LD X2 Loading in A contact of X2
OUT Y2 Driving Y2 coil
:
Y1
EI
X1
I 001
DI
FEND
Y2
X2
IRET
Allowable range
for interruption
Interruption
subroutine
Pointer of
interruption
program
IRET Interruption return