ETrigTl (FB)

FUNCTION_BLOCK ETrigTl IMPLEMENTS IFBCommand

Serves as a basis for Edge Eriggered, Time limited function blocks

InOut:

Scope

Name

Type

Comment

Input

xExecute

BOOL

Rising edge: Action starts
Falling edge: Resets outputs
If a falling edge occurs before the function block has completed its action, the outputs operate in the usual manner and are only reset if either the action is completed or in the event of an error. In this case, the corresponding output values (xDone, xError) are present at the outputs for exactly one cycle.

udiTimeLimit

UDINT

Defines how long (µs) an FB (requiring a long time for complete processing) may run until it is forced to return to the calling POU. The value 0 means that there is no time limitation.

Output

xDone

BOOL

TRUE: Action successfully completed

xBusy

BOOL

TRUE: Function block active

xError

BOOL

TRUE: Error occurred, function block aborts action
FALSE: No error