Delta DVP-ES2 - Manual (Page 128)

D V P - E S 2 / S A 2 / S S 2 / S A2 / S X 2 / S E O p e r a t i o n M a n u a l - P r o g r a m m i n g
3 - 1 2
3.3 Pointers
Mnemonic Operands Function Program steps
P P0~P255 Pointer 1
Controllers
ES2/EX2 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:
Y1
X1
P10
X0
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
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
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
Y1
EI
X1
I 001
DI
FEND
Y2
X2
IRET
Allowable range
for interruption
Interruption
subroutine
Pointer of
interruption
program
OUT Y2 Drive Y2 coil