Delta DVP-15MC Series User Manual

Chapter 8 Logic Instructions
8-11
8_
FB/FC
Explanation
Applicable model
FB
F_TRIG is used for the falling edge trigger.
DVP15MC11T
DVP15MC11T-06
 Parameters
Parameter
name
Meaning
Input/
Output
Description Valid range
CLK
Input
signal
Input Falling edge trigger signal TRUE or FALSE
Q
Output
signal
Output Output for a period TRUE or FALSE
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
CLK
●
Q
●
Note:
The symbol ● indicates that the parameter is allowed to connect to the variable or constant of the data
type.
 Function Explanation
When CLK of F_TRIG changes from TRUE to FALSE, Q output is TRUE for only one period. In other
circumstances, Q is FALSE.
 Precautions for Correct Use
Q will have no output until the falling edge signal at CLK is detected.
 Programming Example
 The variable table and program
Variable name
Data type
Initial value
F_TRG
F_TRIG
F_TRG_EN
BOOL
FALSE
F_TRG_CLK
BOOL
FALSE
F_TRG_Q
BOOL
F_TRIG
EN ENO
CLK
Q
F_TRIG_instance

Delta DVP-15MC Series Specifications

General

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