JSONFileReader (FB)¶

FUNCTION_BLOCK JSONFileReader EXTENDS CBM.ETrig

Function block for reading JSON files.

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	sFileName	STRING(255)		Path to a JSON file
	xIgnoreValueStringLength	BOOL		If True, the error is ignored and the value is shortened and xValueTrunked will be TRUE
	xAsyncMode	BOOL	TRUE	If true, reader runs in asynchronous mode
Inout	jsonData	JSONData		JSONData object
Output	eError	ERROR
	xValueTruncated	BOOL		minimum one String value was > GParams.g_diMaxStringSize