OBIOInterruptInfo (FB)

FUNCTION_BLOCK OBIOInterruptInfo EXTENDS AbbLConC3

This FB is to be used inside the OnBoard_Binary_Input-Task (IEC Task). It retrieves information regarding the binary inputs which triggered the interrupt task and regarding the timing. | Up to 4 different binary inputs can be used for triggering the interrupt task. This block gives the information regarding which input triggered the task, and a timestamp when it did happen. | By these informations, a row of events can be constructed.

In addition to the input number, also the timestamp for the actual time (when the task was triggered) and timestamp for the interrupt are delivered. These times are not synchronized to the PLC time.

precondition

the respective channel is configured as interrupt channel. OBIOInterruptPara (FB)

Note

This block should just be called once per cycle otherwise inconsistent values could be send to PRU, if send twice in short time.

InOut:

Scope	Name	Type	Initial	Comment	Inherited from
Input	Enable	BOOL	FALSE	A rising edge (Enable = TRUE) starts the operation, the output Busy goes to TRUE. All other inputs are read and considered continuously. Execution will continue forever until a falling edge (Enable = FALSE) aborts the operation. During Aborting the Busy is still TRUE. Afterward all outputs are reset.	AbbLConC3
Output	Busy	BOOL	FALSE	Operation is running (while output Error is FALSE)	AbbLConC3
	Error	BOOL	FALSE	Operation is stopped with error (while output Busy is FALSE). This output is TRUE for at least one cycle or until Enable is set to FALSE. The output ErrorID gives more details about the error.	AbbLConC3
Inout	Confi	OBIOInterruptPara		link the block to the interrupt configuration OBIOInterruptPara (FB)
Output	ErrorID	Error_ID	0	Error code
	ActTimeStamp	UDINT		timestamp from triggering the interrupt. If a FilterTime is used, and >1 interrupts occur in a row, this time can be different from the InterruptTimeStamp
	InterruptActive	ARRAY [0..arrLimit] OF BOOL		indication of active interrupt, rising edge
	InterruptActiveNeg	ARRAY [0..arrLimit] OF BOOL		indication of active interrupt, falling edge
	InterruptTimeStamp	ARRAY [0..arrLimit] OF UDINT		timestamp for respective interrupt occurence, refers to ActTimeStamp
	InterruptLost	ARRAY [0..arrLimit] OF UDINT		count number of lost interrupts, if interrupts are too fast. Different binary inputs can be close together, but rising egdes for a specific input needs to be FilterTime apart, otherwise information is lost.