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SF_SR (FB)

Description of the function block

Tip

The version of the function block as described here corresponds to the latest version of the function block in Version list of function blocks.

Tip

SF_SR is a bistable function block from the SafetyStandard library. It is an extension of SR, a standard IEC 61131-3 function block. The SF_SR function block contains both standard data types and safety-oriented data types (prefix: SAFE).

SF_SR is a bistable function block from the SafetyStandard standard library with dominant set.

Figure 116. Function block: SF_SR
Function block: SF_SR


Table 97. VAR_INPUT

Name

Data Type

Initial Value

Description, parameter values

SET1

SAFEBOOL

FALSE

Input to set Q1, set dominant

RESET

BOOL

FALSE

Input, reset to Q1



Table 98. VAR_OUTPUT

Name

Data Type

Initial Value

Description, parameter values

Q1

SAFEBOOL

FALSE