B&B Electronics 4 Channel Input Buffer Board SDAIBB Manual do Utilizador descarregar pdf (Página 52)

48 Chapter 5 Documentation Number UD128A8D4602 Manual

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Device1.Open

Call EnableTest1

End If

If Device.Name = “DAQ2” Then

Set Device2 = Device

Device2.Open

Call EnableTest2

End If

Next Device

End Sub

This routine uses the Count property. The number of connected

devices can be found by checking the BBDaqEnum.Devices.Count.

Note that disconnecting a device automatically closes that device

and accessing any property or calling any function results in an

error.

Device Numbers and Names

Set Device1 = Connected.Devices(1)

Set Device2 = Connected.Devices(2)

Set Device2 = Connected.Devices(1)

‘ \ Or By Name: - The named device must be attached

Set Device1 = Connected.Devices(“DAQ1”)

Set Device1 = Connected.Devices(“DAQ2”)

Set Device3 = Connected.Devices(“DAQ3”)

‘ \ 8. If we have one, Open it.

Device1.Open

Device3.Open

Alias Variable Creation for Each I/O Point

Rather than addressing each I/O Point through the

Device.IOPoints(ID) method, it is possible to set up a variable for

each I/O point. This shortens the time that it takes Visual Basic to

access the I/O point.

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B&B Electronics 4 Channel Input Buffer Board SDAIBB Manual do Utilizador Página 52