Rohde & Schwarz R&S FSP Series, Operating Manual

Page: 325 / 796

Operating Manual 1164.4556.12 - 06 4.253
R&S FSP Instrument Functions
RSIB Interface Functions
This function fetches the responses of the GPIB parser to a query.
In the case of Visual Basic programming, a string of sufficient length must be gener-
ated beforehand. This can be done during the definition of the string or using the
command
Space$()
.
Generation of a string of the length 100:
–
Dim Rd as String * 100
–
Dim Rd as String
Rd = Space$(100)
RSDLLilrd
This function reads
Cnt
bytes from the device with the handle
ud
.
Like the function
RSDLLibrd()
, this function reads data from a device. The only
difference is that in this case the maximum number of bytes to be copied to the tar-
get string
Rd
can be indicated by means of
Cnt
. This function prevents writing
beyond the end of the string.
RSDLLibrdf()
Reads data from the device with the handle
ud
into the
file
file .
VB format:
Function RSDLLilrd (ByVal ud%, ByVal Rd$,
ByVal Cnt&, ibsta%, iberr%, ibcntl&) As
Integer
C format:
short WINAPI RSDLLilrd( short ud, char far
*Rd, unsigned long Cnt, short far *ibsta,
short far *iberr, unsigned long far *ibcntl
)
C format (UNIX):
short RSDLLilrd( short ud, char *Rd,
unsigned long Cnt, short *ibsta, short
*iberr, unsigned long *ibcntl )
Parameters:
ud
Device handle
cnt
Maximum number of bytes copied from
the DLL into the target string
Rd
.
Example:
RSDLLilrd (ud, RD, 100, ibsta, iberr,
ibcntl)
VB format:
Function RSDLLibrdf (ByVal ud%, ByVal
file$, ibsta%, iberr%, ibcntl&) As Integer
C format:
short WINAPI RSDLLibrd( short ud, char far
*file, short far *ibsta, short far *iberr,
unsigned long far *ibcntl )
C format (UNIX):
short RSDLLibrd( short ud, char *file, short
*ibsta, short *iberr, unsigned long *ibcntl
)
Parameters:
ud
Device handle
file
File to which the read data is written.
Example:
RSDLLibrdf (ud, "c:\db.sav", ibsta, iberr,
ibcntl)