Keithley KPCI-488 LPA, User Manual, Page: 45 / 82

KPCI-488LPA-900-01 Rev. A / December 2008 Return to Section Topics 2-19
Model KPCI-488LPA GPIB Controller Interface Card User’s Manual Section 2: NI Command Compatible Functions
ibfind
Description This command opens and initializes the GPIB board descriptor. The returned board
descriptor can be used in later commands. Similar to
ibonl 1, ibfind performs a board
description initialization. Before the board is put offline by using ibonl 0, the descriptor
that is returned by ibfind is valid; -1 is returned if ibfind is unable to get a valid
descriptor. At the same time, the ERR bit of the ibsta and the EDVR bit of the iberr
are set.
Support Level Board level
Syntax Microsoft C/C++ and Borland C++
int ibfind (const char *boardname)
Visual Basic
ibfind (ByVal boardname As String) As Integer
- or -
call ibfind (ByVal boardname As String, ud As
Integer)
Parameters boardname : board name; for example, gpib0
Return Value The board descriptor or -1
Error Codes EBUS, ECIC, EDVR, ENEB
ibgts
Description This command sets the board from active control status to standby control status.
ibgts sets the GPIB board as the standby control unit and releases the control of the
GPIB ATN line.
Support Level Board level
Syntax Microsoft C/C++ and Borland C++
int ibgts (int ud, int shadow_handshake)
Visual Basic
ibgts (ByVal ud As Integer, ByVal v As Integer)
As Integer
- or -
call ibgts (ByVal ud As Integer, ByVal v As Integer)
Parameters ud : board descriptor
v : determines whether to handshake with receiver
Return Value The value of the ibsta
Error Codes EADR , EARG, ECIC, EDVR, ENEB, EOIP