laser sensor Labview program

[Jeffrey_Oon]

Hi,

I tried to retrieve a data from a Optex laser sensor, CD22-35-RS485-M12.

I used a Rs-485 to USB converter link to my laptop.

It shows error when i run the program.

Attached a Labview program, error massage file, laser sensor user manual and cable connection for your reference.

Please use my Labview project file for amendment.

Thank you very much.

[GerdW]

Hi Jeffrey,

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@Jeffrey_Oon wrote:

It shows error when i run the program.

Attached a Labview program, error massage file, laser sensor user manual and cable connection for your reference.

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• Did you verify the COM port settings? The error message says one or more of those settings isn't supported by your COM port (aka that USB-to-RS485 converter)…
• Did you try to use different settings on your sensor device?
• The strings sent to your device seem wrong to me: your device expects bytes (aka U8 datatype) instead of strings containing 2 ASCII chars for values like "02h"!
• You should never use BytesAtPort! Instead you should read that 6 bytes of the device response! (Or set ETX as TermChar and read one more (BCC) byte…)

[pincpanter]

The stop bit value is invalid: the right value is not 1 but 10.

I suggest to delete your constant and the conversion function, right-click the input terminal of the Configure vi and select Create --> Costant.

The same you can do with all other vi inputs. Conversion functions are not necessary.

All other suggestions from GerdW remain valid.