Is it possible to use a NI-9871 module on a C-RIO to automatically update shared variables?

[D Reck]

I am trying to use shared variables to poll a modbus network automatically.  I have a C-RIO 9014 and NI-9871 serial module that the modbus network is connected to.  Does anyone know if this is possible?  If so, could you post a sample configuration?  I have not been able to get it to work...   

Thanks,

Dan

[Ipshita_C]

Hi D Reck,

Using the 987X modules with a cRIO is much like using any other C Series module with a cRIO. It will interface with the FPGA through read/write controls or use a DMA transfer to send the serial information to the RT controller for processing. Note...you will need NI-RIO 2.4 and above depending on your version of Real Time and LabView or you will have to additionally install NI-Serial. DSC can only be run on Windows so I would guess that you would use variables coming from the FPGA or RT to DSC on a windows host machine and in the DSC module you can do ModBus Instrument I/O. Does that answer your question?

Ipshita C.