Instrument Control (GPIB, Serial, VISA, IVI)

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Omega CN616A

I am looking for information on how to communicate with an Omega CN616A Temperature controller over MODBUS / RTU using LabVIEW.  I have down loaded the Modbus Master, Plasmionique package.  I have a USB to  RS232 cable (COM 4).  Omega provides an application that communicates with the CN616A device, and I am able to use this.  I have tried different configurations in LabVIEW but I'm not able to read any data.

Note.  The earlier CN616 module was able to use a serial port, but the CN616A is only ModBus.

John Kidder
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