A function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances. block - Generate a signal defined in a resource
Inputs
IN :
BOOL Triggering command
ID :
DINT ID of the signal resource, provided by
SigID function
RST :
BOOL Reset command
TM : TIME Minimum time in between
two changes of the output
Outputs
Q : BOOL TRUE when the signal is finished
OUT : REAL Generated signal
ET : TIME Elapsed time
Remarks
The "ID" argument is the identifier of the "signal" resource. Use the SigID function to get this value.
The "IN" argument is used as a "Play / Pause" command to play the signal. The signal is not reset to the beginning when IN becomes FALSE. Instead, use the "RST" input that resets the signal and forces the OUT output to 0.
The "TM" input specifies the minimum amount of time in between two changes of the output signal. This parameter is ignored if less than the cycle scan time.
This function block includes its own timer. Alternatively, you can use the SigScale function if you want to trigger the signal using a specific timer.
ST Language
Q := SigScale (ID, IN);
FBD Language
FFLD Language
IL Language
Op1: FFLD IN
SigScale ID
ST Q
See also
SigScale SigID Signal resources
