Anritsu ML2430A operation manual Programming Examples, 16PROGRAMMING, Output Data

PROGRAMMING EXAMPLES GPIB OPERATION

6-16PROGRAMMING	The following programming examples are provided as a general guideline on how
EXAMPLES	to program the ML2430A Series Power Meters using GPIB commands. All exam-
	ples are written in Visual Basic or C language. The GPIB-specific calls are for the
	National Instruments GPIB DLL.
	Refer to the IEEE 488.2-1987 Programming Reference book for more information
	about how to use the 488.2 commands.
	Output Data

Function GetReading (ByVal channel As Integer) As Single

'make space for the result Dim result As String result = String$(10, 0)

'Set the command up

Cmd = “O ” + Str(channel) : CmdLength = Len(Cmd)

'Send the command to the device at address 13

'(default address of the power meter)

Call DLLsend(0, 13, Cmd, CmdLength, NLend, ibsta%, iberr%, ibcntl&)

'Receive the data from ML2430A at address 13 Call DLLreceive(0, 13, result, 10, STOPend, ibsta%, iberr%, ibcntl&)

'Pass result back

GetReading = Val(result)

End Function

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