Short summary

Name	`TO_SAFEBOOL`
→POU type	→function
Category	IEC-block, Safe-Convert
Conform to →IEC-standard	not defined in IEC-standard
Graphical interface
Available since	version 3.2.10 (for library `Standard`) – initial variant version 3.2.11 (for library `Standard`) – moved to global →namespace

Functionality

The blocks serves for explicitly converting the BOOL value connected to input IN into a value of data type SAFEBOOL.

When using a safe convert block, you must make sure that the input signal to the safe convert block is suitable to be used as safe signal. logi.CAD 3 does not ensure that a signal status is safe but only highlights safe logic in the FBD-editor so that you are able to differentiate beween safety-relevant and standard signals.

Inputs, return value

	Identifier	→Data type	Description
Inputs:	`IN`	`BOOL`	value to be converted
Return value:	–	`SAFEBOOL`

Input EN and output ENO are available when →calling the block. See "Execution control: EN, ENO" for information on input EN and output ENO.

See:

"Blocks for safe logic" whether this block is supported for developing safety-relevant applications.
"Highlighting safe logic in the FBD-editor" for the effects when using the block as a block for safe logic .

Example for usage within ST-editor

At present, there is no example

When creating your application within the ST-editor, enter a call of a block by typing the text as requested by the syntax or use Content Assist.