Hioki RM3542-50, Instruction Manual

Page: 178 / 234

9.9 Sample Programs
172
 External Trigger Measurement 1
Measure and import according to the external triggering of the RM3542A (F4 [MANU] key or the TRIG signal
input), and save the measurements in a text file.
Private Sub MeasureTrigSub()
Dim buffer As String
∗
20 ' Receiving buffer
Dim recvstr As String ' Receiving char string
Dim pad As Integer ' Controller address
Dim gpibad As Integer ' Device address
Dim timeout As Integer ' Timeout period
Dim ud As Integer ' State (unused)
Dim i As Integer
pad = 0 ' Board address 0
gpibad = 1 ' RM3542A address 1
timeout = T100s ' Timeout 100 s (because of the external trigger wait
state)
Call ibfind("gpib0", 0) ' Initialize GP-IB
Call ibdev(pad, gpibad, 0, timeout, 1, 0, ud)
Call SendIFC(pad)
Open App.Path & "\data.csv" For Output As #1
' Open a text file to save
Call Send(pad, gpibad, ":TRIG:SOUR EXT", NLend) ' Select external trigger
Call Send(pad, gpibad, ":INIT:CONT OFF", NLend) ' Continuous measurement OFF
For i = 1 To 10
Call Send(pad, gpibad, ":READ?", NLend)
' Send ":READ?" to measure and import the mea-
surement
Call Receive(pad, gpibad, buffer, STOPend) ' Receive
recvstr = Left(buffer, InStr(1, buffer, Chr(10)) - 1)
Print #1, Str(i) & "," & recvstr
' Write to the file
Next
Close #1
Call ibonl(pad, 0)
End Sub