NextElement (FB)ΒΆ

FUNCTION_BLOCK NextElement EXTENDS CBM.ETrig

Reads the next element of a CSV file.

InOut:

Scope

Name

Type

Initial

Comment

Inherited from

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.

ETrig

Output

xDone

BOOL

TRUE: Action successfully completed

ETrig

xBusy

BOOL

TRUE: Function block active

ETrig

xError

BOOL

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

ETrig

Input

udiMaxElementLength

UDINT

255

Max length of the element

xReset

BOOL

Reset the read position to the first element

psElement

POINTER TO STRING

Pointer to element to read

Inout

csvReaderInit

CSVReaderInit

Initialization of the CSV reader

Output

eError

CSV_ERROR

Error code

xHasNextElement

BOOL

True, if there are more elements to read