binary file with line break

Hello

Today, I need to import data from a binary file / mixed text. The structure is

CH1 octet1 Ch1 Ch2 Ch2 octet2 CrLf octet1 octet2

CH1 octet1 Ch1 Ch2 Ch2 octet2 CrLf octet1 octet2

CH1 octet1 Ch1 Ch2 Ch2 octet2 CrLf octet1 octet2

My first attempt was a DataPluginExample3.VBS updated the

Void ReadStore (File)

Sun block: SetBlock = File.GetBinaryBlock)

Dim Channel1: Set channel 1 = Block.Channels.Add ("Low-Timer", eU16)

Canal2 Dim: Set Canal2 = Block.Channels.Add ("High-Timer", Ue16)

Dim canal3: Canal3 Set = Block.Channels.Add ("CrLf", Ue16)

Dim ChannelGroup: Set ChannelGroup = Root.Channelgroups.Add ("ESR_Timing")

ChannelGroup.Channels.AddDirectAccessChannel (Channel1)

ChannelGroup.Channels.AddDirectAccessChannel (Channel2)

ChannelGroup.Channels.AddDirectAccessChannel (Channel3)
"(Kanal 3 ist nur $OD$ OA CrLf)"

End Sub

Unfortunately, each odd sample, the data are corrupted and then become misaligned. And the beginning of data entry does not exactly start a new line.

So I would use the CrLF to re-sync.

How can I mix the approach of the ASCII-readline with binary data?

The following does not work: I try to tell the trainer to use vbNewLine (= CrLf = $0D $0) to separate lines and use the channels of direct access with the data type of U16. But when you use the line break, apparently the import filter also expects the delimiters instead of raw binary values.

Void ReadStore (File)

File.Formatter.LineFeeds = vbNewLine

File.SkipLine () ' Sicherstellen, dass erste wird ignoriert line unvollstandige

Sun block: SetBlock = File.GetStringBlock()

Dim Channel1: Set channel 1 = Block.Channels.Add ("Low-Timer", eU16)

Canal2 Dim: Set Canal2 = Block.Channels.Add ("High-Timer", Ue16)

' Dim canal3: canal3 Set = Block.Channels.Add ("CrLf", Ue16)

Dim ChannelGroup: Set ChannelGroup = Root.Channelgroups.Add ("ESR_Timing")

ChannelGroup.Channels.AddDirectAccessChannel (Channel1)

ChannelGroup.Channels.AddDirectAccessChannel (Channel2)

End Sub

Thank you for your comments.

Michael

Hi Michael,

I think this use made the rounds.  I had to ignore all partial to the first row of values in order to keep the correspondence of the line of the high and low timer values.  Also note that by default the U16s are read with LittleEndian byte order - you can change that with File.Formatter.ByteOrder = eBigEndian.

Brad Turpin

Tiara Product Support Engineer

National Instruments

Tags: NI Software

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