EN_OUT - Enable output

 

This safety-related bitwise Boolean function represents an AND logic with a safety-related signal and a standard signal as inputs to set a safety-related output signal. Using the EN_OUT function, the enable principle can be realized.

NOTE:

The Safety Logic Controller has access to all safety-related I/Os and is exclusively able to set safety-related outputs. This can be carried out directly or in conjunction with a standard signal of the standard controller program (enable principle).

Programming the enable principle is only allowed using the EN_OUT function without negations or any further signal processing.

WARNING

UNINTENDED EQUIPMENT OPERATION

  • Verify that the EN_OUT function is used without negations or any further signal processing.

  • Verify that the influence of a standard signal via the EN_OUT func­tion cannot result in an unintended or hazardous behavior of the entire system.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Example:

EnablePrinciple.png

Parameter

Data types

Description

IN1

SAFEBOOL

Safety-related input value

IN2

BOOL

Standard input value

OUT

SAFEBOOL

Safety-related output value

Example

EN_OUT.gif