Is there any modbus communication compatability with labview?

[chandhu]

sir,

i have a controller, which is having EIA 485 modbus communication facility.Is there any module to communicate with labview. if so, please give me the details.

[Donald]

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chandhu wrote:

... Is there any module to communicate with labview. ...

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There's the Modbus Library for LabVIEW.

If you search this forum for "modbus", you'll find information about other options (e.g. older 3rd party drivers, incorporating OPC Modbus servers, etc.).  You'll also find a few posts regarding the library linked above.

[pincpanter]

About the Modbus Library: let me add that if you need to implement a Modbus slave on 485, you may need to modify the transmission vi because the current one does not manage in any way the enabling/disabling of the 485 line drive. Whether it is needed or not, depends on your 485 hardware. Typically, when you have a 485 converter plugged on a RS-232, you must use the RTS line to enable/disable transmission.

Paolo