Delta DVP-ES2 User Manual download pdf (Page 128)

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101

DVP-ES2/SA2/SS2/SA2/SX2/SE Operation Manual - Programming

3-12

3.3 Pointers

Mnemonic Operands Function Program steps

P0~P255 Pointer 1

Controllers

ES2/EX2 SS2

SA2

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:

P10

CJ P10

Instruction: Operation:

LD X0 Load NO contact X0

CJ P10 Jump to P10

P10

Pointer P10

LD X1 Load NO contact X1

OUT Y1 Drive coil Y1

3.4 Interrupt Pointers

Mnemonic Function Program steps

Interrupt program pointer 1

Controllers

ES2/EX2 SS2

SA2

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

code:

Operation:

EI Enable interruption

LD X1 Load NO contact X1

OUT Y1 Drive Y1 coil

DI Disable interruption

FEND Main program ends

I001 Interruption pointer

LD X2 Load NO contact X2

I 001

FEND

IRET

llowable range

for interruption

Interruption

subroutine

Pointer of

interruption

program

OUT Y2 Drive Y2 coil

1 2 ... 123 124 125 126 127 128 129 130 131 132 133 ... 701 702

Delta DVP-ES2 User Manual Page 128

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