B&B Electronics 4 Channel Input Buffer Board SDAIBB Manuale Utente Scaricare il pdf (Pagina 47)

Documentation Number UD128A8D4602 Manual Chapter 5 43

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10. Before Running, make an a Exit Routine to cleanup & End

Public Sub CleanExit()

‘ \ VB’s End does not close or clean up – you must!

Clean-up – Closing - Exit

‘ \ Cleanup before End

On Error Resume Next

Device1.Close

' \ To remove the variable holding a device,

‘ \ Set it to Nothing.

Set Device1 = Nothing

' \ To remove the list of connected devices,

‘ \ set it to Nothing.

Set Connected = Nothing

' \ Any alias I/O point variables created should

‘ \ also be set to Nothing

' \ Set ad0 = Nothing

End

End Sub

11. Next Set the Configurations for Inputs and Outputs

Digital I/O Configuration

Device1.IoPointGroups(DIG_GROUP_1).Configuration _

= DIGITAL_INPUT

‘ \ Sets Digital I/O 0-3 to Inputs

‘ \ The space underscore ( _) is the VB line continuation char

Device1.IoPointGroups(DIG_GROUP_2).Configuration _

= DIGITAL_OUTPUT

‘ \ sets Digital I/O 4-7 to Outputs

Note: The UD128A8D has only 1 type of digital I/O (No latches or

counters), so no other configurations are necessary. Future units

may require that each I/O Point be configured.

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B&B Electronics 4 Channel Input Buffer Board SDAIBB Manuale Utente Pagina 47