Agilent Technologies FS2010 Guia do Utilizador descarregar pdf (Página 61)

Programming with VISA 3

Agilent VISA User’s Guide 61

VI_ATTR_STATUS Specifies the status of the read

operation from the USB interrupt-IN

pipe. If the device sent more data

than the user specified in

VI_ATTR_USB_MAX_INTR_SIZE,

then this attribute value will contain

an error code.

RO ViStatus N/A

Table 16 Instrument Control (INSTR) Resource Events

Table 17 Memory Access (MEMACC) Resource Event

VI_EVENT_IO_COMPLETION

Notification that an asynchronous operation has completed

Event Attribute Description AP Data Type Range

VI_ATTR_EVENT_TYPE Unique logical identifier of the

event.

RO ViEventType VI_EVENT_IO_COMPLETION

VI_ATTR_STATUS Return code of the asynchronous

I/O operation that has completed.

RO ViStatus N/A

VI_ATTR_JOB_ID Job ID of the asynchronous

operation that has completed.

RO ViJobId N/A

VI_ATTR_BUFFER Address of a buffer that was used in

an asynchronous operation.

RO ViBuf N/A

VI_ATTR_RET_COUNT Actual number of elements that

were asynchronously transferred.

RO ViUInt32 0 to FFFFFFFF

VI_ATTR_OPER_NAME Name of the operation generating

the event.

RO ViString N/A

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 159 160

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Agilent Technologies FS2010 Guia do Utilizador Página 61