Delta DVP-ES2 User Manual download pdf (Page 165)

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101

3. Instruction Set

3-49

API Mnemonic Function

IRET Interrupt Return

Controllers

ES2/EX2 SS2

SA2

SX2

OP Descriptions Program Steps

N/A

No contact to drive the instruction is required.

IRET ends the processing of an interrupt subroutine and

returns execution back to the main program

IRET: 1 step

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

API Mnemonic Function

EI Enable Interrupt

Controllers

ES2/EX2 SS2

SA2

SX2

OP Descriptions Program Steps

N/A

No contact to drive the instruction is required.

Enables Interrupts, explanation of this instruction also

coincides with the explanation of the DI (disable interrupts

instruction), see the DI instruction for more information.

M1050~M1059

EI: 1 step

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

API Mnemonic Function

DI Disable Interrupt

Controllers

ES2/EX2 SS2

SA2

SX2

OP Descriptions Program Steps

N/A

No contact to drive the instruction is required.

DI instruction disables PLC to accept interrupts.

When the special auxiliary relay M1050 ~ M1059 for

disabling interruption is driven, the corresponding

interruption request will not be executed even in the range

allowed for interruptions.

DI: 1 step

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Explanations:

1. EI instruction allows interrupting subroutine in the program, e.g. external interruption, timer

interruption, and high-speed counter interruption.

2. In the program, interruption subroutines are enabled between EI and DI instructions. If there

is no section requires to be interrupt-disabled, DI instruction can be omitted.

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Delta DVP-ES2 User Manual Page 165

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