DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

DVP-ES2/SA2/SS2/SA2/SX2/SE Operation Manual - Programming
3.3 Pointers
Mnemonic Operands Function Program steps
P P0~P255 Pointer 1
ES2/EX2
Controllers
SS2 SA2
SE SX2
Explanation:
Pointer P is used with API 00 CJ and API 01 CALL instructions. The use of P does not need to start
from P0, and the No. of P cannot be repeated; otherwise, unexpected errors may occur. For other
information on P pointers, please refer to section 2.12 in this manual
Program example 1:
Ladder Diagram:
Instruction: Operation:
X0
LD X0 Load NO contact X0
CJ P10
CJ P10 Jump to P10
P10
X1
:
Y1
P10
Pointer P10
LD X1 Load NO contact X1
OUT Y1 Drive coil Y1
3.4 Interrupt Pointers
Mnemonic Function Program steps
I Interrupt program pointer 1
Controllers
ES2/EX2 SS2 SA2
SE SX2
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. For detailed information on
interrupt pointes, please refer to section 2.12 in this manual
Program example:
Ladder diagram:
Instruction
Operation:
code:
Pointer of
interruption
program
I 001
X1
X2
EI
Y1
DI
FEND
Y2
IRET
Allowable range
for interruption
Interruption
subroutine
EI
LD
OUT
:
DI
:
FEND
I001
LD
OUT
Enable interruption
X1 Load NO contact X1
Y1 Drive Y1 coil
Disable interruption
Main program ends
Interruption pointer
X2 Load NO contact X2
Y2 Drive Y2 coil
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