xLadder user manual-V2.0.0.6

6.9.2 RETI instruction

Operand

Data type

Nothing

Nothing

RETI : When the Logic in front of the RETI instruction is 1,

PLC execution returns from interrupt.

Interrupt Events:

I1.2 Rising edge PLC_EVENT_INPUTP0 0 Highest priority

I1.4 Rising edge PLC_EVENT_INPUTP1 1 High priority

Timer interrupt 0 PLC_EVENT_TIMER0 10 Low priority

Timer interrupt 1 PLC_EVENT_TIMER1 11 Lowest priority

Interrupt use guide

Interrupt routine offers a quick response to a particular internal or external event.

Interrupt routine should be concise and efficient, so it can accelerate the speed of

execution.

Limit: DISI, ENI, HDEF, LSCR, and END instructions can not be used in the interrupt

routine.

Example:

143

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