---
name: "tof"
section: "9"
platform: "linux"
package: "linuxcnc-uspace"
version: "1:2.9.4-2+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/tof"
---

# tof(9)

IEC TOF timer - delay falling edge on a signal

## NAME

tof - IEC TOF timer - delay falling edge on a signal

## SYNOPSIS

**loadrt tof \[count=*N*\|names=*name1*\[,*name2...*\]\]**

## FUNCTIONS

- **tof.***N* (requires a floating-point thread)

  Update the timer

## PINS

- **tof.*N*.in bit in**

  Input signal

- **tof.*N*.q bit out**

  Output signal

- **tof.*N*.et float out**

  Elapsed time since falling edge in seconds

## PARAMETERS

- **tof.*N*.pt float rw**

  Delay time in seconds

## AUTHOR

Chad Woitas

## LICENSE

GPL