11
Command Description
TRIG?
Returns the value of the trigger setting: 0 = Continuous, 1 = Start/Stop
:WIND N
Sets the coincidence window length to N nanoseconds. N must be between 1 and
8.
WIND?
Returns the coincidence window length in nanoseconds
3.3
Sample Serial Program
The following sample program (written in Visual Basic 6.0) provides a very simple example of
how serial commands can be used through third-party programs to control the CC1:
MSComm3.PortOpen
=
True
‘Open
COM
Port
'-- Prepare Coincidence Counter for Measurements --
MSComm3.Output = ":GATE 0" & Chr$(13)
‘Disable GATE Channel
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
MSComm3.Output = ":SUBT 0" & Chr$(13)
'Turn off Subtract Accidentals option
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
MSComm3.Output = ":TRIG 1" & Chr$(13)
'Set Trigger Option to Start/Stop
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
MSComm3.Output = ":DWEL 20000" & Chr$(13)
'Set Dwell Time to 20 seconds
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
MSComm3.Output = ":DELA 2" & Chr$(13)
'Set Delay Time on Channel 1 to 2ns
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
MSComm3.Output = ":WIND 3" & Chr$(13)
‘Set Coincidence Window to 3 ns
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
'-- Take Measurement --
MSComm3.Output = ":COUN:ON" & Chr$(13)
dt = Now
' Wait for Dwell Time (plus 1 second)
Do While DateDiff("s", dt, Now) < 21
DoEvents()
Sleep 50
'Put app to sleep in small increments
Loop
'--Transfer Measurements --
MSComm3.Output = "COUN:C1?" & Chr$(13)
‘Query Channel 1 Counts
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
Textbox1.text = MSComm3.Input
‘Display counts in a textbox
MSComm3.Output = "COUN:C2?" & Chr$(13)
‘Query Channel 2 Counts
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
Textbox2.text = MSComm3.Input
‘Display counts in a textbox
MSComm3.Output = "COUN:CO?" & Chr$(13)
‘Query Coincidence Counts
Sleep
300 'Wait
0.3
seconds
for
command
to
transfer
Textbox3.text = MSComm3.Input
‘Display counts in a textbox
MSComm3.PortOpen = False
‘Close COM Port
Содержание CC1
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Страница 7: ...4 Figure 4 CC1 Buttons and Ports...
Страница 23: ...20 APPENDIX A Electrical Schematics and Connections...
Страница 24: ...21 A 1 Top Board LCD Display...
Страница 25: ...22 A 2 Bottom Board FPGA and Microprocessor...
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