TrigGen (FB)¶
FUNCTION_BLOCK TrigGen
Short Description¶
Impulse generation with adjustable time interval
Portrayal¶
Interfaces¶
Inputs¶
Name Datatype
Range
Init-Value
Functional Description
xEn BOOL Enable input
wInterval WORD Time value for the time interval
eTimeBase eTimeMS Time basis for the time interval
xEnImp BOOL Option Enable 1st impulse
Outputs¶
Name Datatype
Range
Init-Value
Functional Description
xTrig BOOL Impulse output
Functional Description¶
General¶
At the impulse output xTrig, impulses are generated cyclically with a duration of one program cycle and a time interval of (wInterval multiplied by eTimeBase)
when the enable input xEn is active.
Limitation of the maximum time interval
The time interval is limited to a maximum of 48 days to avoid an internal value overflow.
Example for calculating the time interval
wInterval* = 1000, eTimeBase = Millisecond, impulses are generated in a time interval of 1000ms.
Enable 1st impulse xEnImp¶
If this option is active (xEnImp = TRUE), the first impulse is generated immediately after enabling xEn.
If this option is not active (xEnImp = FALSE), the 1st impulse is generated after the time interval xEn has elapsed.
Visualization¶
Information¶
Element Authors
Date
Version Notes
Functional Description
Adam Bartod 09.2017 1.0 Initial version
Programming
Adam Bartod 09.2017 1.0 Initial version
Test Jochen Reu 10.2017 1.0 Initial version
Documentation
Jochen Reu 10.2017 1.0 Initial version