Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4 2-61
Driver Function Reference
hpe5250a_connRuleSeq
raw_c Capacitance value (in F) measured by the 4284A.
raw_g Conductance value (in S) measured by the 4284A.
compen_c Capacitance compensation result (in F).
compen_g Conductance compensation result (in S).
Example
Sub Main()
Dim Ag5250 As Hpe5250a = New Hpe5250a("GPIB0::22::INSTR", True,
True)
Ag5250.Reset()
Ag5250.TimeOut(60000)
Dim closelist() As Integer = {40101, 40202, 40303, 0}
’path: in1-out1, in2-out2, in3-out3 of card4
Ag5250.Func(Hpe5250a.ChannelConfigEnum.NormalConfiguration)
Ag5250.ConnRuleSeq(0, 1, 1)
Ag5250.CloseList(closelist)
Dim freq As Double = 1000000 ’ measurement frequency: 1 (MHz)
Dim c_len As Double = 3 ’ 16494A cable length: 3 (m)
Dim tri_h As Double = 0 ’ HI side triax cable length in m
Dim tri_l As Double = 0 ’ LO side triax cable length in m
Dim co_h As Double = 0 ’ HI side coax cable length in m
Dim co_l As Double = 0 ’ LO side coax cable length in m
Dim cr As Double = 0.0000000001 ’ C value by 4284A: 100 (pF)
Dim gr As Double = 0.0005 ’ G value by 4284A: 0.5 (mS)
Dim cc As Double
Dim gc As Double
Ag5250.CompenC(freq, c_len, tri_h, tri_l, co_h, co_l, cr, gr, cc,
gc)
Dim result As String = "C = " & cc * 1000000000000.0 & " (pF)"
result = result & Chr(10) & "G = " & gc * 1000 & " (mS)" & Chr(10)
Console.WriteLine(result)
Ag5250.Close()
End Sub
hpe5250a_connRuleSeq
The function sets connection rule and connection sequence for the specified card.
Syntax ViStatus _VI_FUNC hpe5250a_connRuleSeq(ViSession vi,
ViInt16 cardno_ruleseq, ViInt16 rule, ViInt16 sequence);
Parameters vi Instrument handle returned from hpe5250a_init( ).
cardno_ruleseq Card number. 1 (card 1), 2 (card 2), 3 (card 3), 4 (card 4), or 5
(all card) in the normal configuration mode, or 0 (all card in the
automatic configuration mode). For the configuration mode, see
hpe5250a_func.
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