3 Safety Standard Function Blocks
3 - 18
NX-series Safety Control Unit Instructions Reference Manual (Z931)
SF_TP
This FB outputs TRUE during the set time after the timer starts.
Instruction Name FB/FUN Graphic expression
SF_TP Timer Pulse FB
Variables
Input Variables
Variable Name Data type Valid range Default Description
IN Timer input BOOL TRUE or FALSE FALSE TRUE: Timer start specification
FALSE: Timer reset specification
PT Set time TIME Depends on data
type.
0 Time that Q remains at TRUE
Output Variables
Variable Name Data type Valid range Default Description
Q Timer output SAFEBOOL TRUE or FALSE FALSE TRUE: IN is TRUE and ET is lower
than PT after the timer starts.
FALSE: ET reached PT.
ET Elapsed time TIME Depends on data
type.
0 Elapsed time since timer started