Delta DVP-15MC Series User Manual

Chapter 8 Logic Instructions
8-45
8_
FB/FC
Explanation
Applicable model
FB
TOF is used for the off delay.
DVP15MC11T
DVP15MC11T-06
 Parameters
Parameter
name
Meaning
Input/
Output
Description Valid range
In Timer input
Input
Controls the timer to start or reset TRUE or FALSE
PT Set time
Input
Set the time from when the timer starts
until Q changes to TRUE
Q Timer output
Output
Q is FALSE when the set time PT is
reached.
TRUE or FALSE
ET Elapsed time
Output
Elapsed time from the time when the
timer starts to current time.
 T#0ms ~ 213503d23h34m33s709.551ms
Boolean
Bit string Integer
Real
number
Time, date
String
BOOL
BYTE WORD
DWORD
LWORD USINT UINT UDINT ULINT SINT INT DINT LINT REAL LREAL
TIME
DATE
TOD
DT STRING
In
●
PT
●
Q
●
ET
●
Note:
The symbol ● indicates that the parameter is allowed to connect to the variable or constant of the data
type.
 Function Explanation
 The TOF instruction is defined as the function of a timer for the OFF delay.
 When In is TRUE, Q is TRUE. When In changes from TRUE to FALSE, the timer starts to measure
the time and the value of ET increases accordingly. At the moment, Q remains TRUE. When ET
equals PT, Q is FALSE and the timer stops measuring time. When In is set to TRUE, ET is reset
and Q changes to TRUE again.
 Precautions for Correct Use
When the output value of ET reaches the set value of PT, the timer stops measuring time. ET is
reset to 0 (0ms) when In changes from FALSE to TRUE.
TOF
EN ENO
Q
TOF_instance
In
PT
ET

Delta DVP-15MC Series Specifications

General

Brand	Delta
Model	DVP-15MC Series
Category	Controller
Language	English