communicating with cFP 1808

[dksharma]

How can I communicate from a vi running embaded on cFP 2020 to data chanels from cFP 1808 module. I am using LabVIEW and RT module 7.1 ver.

[Dominic_L]

Hello dksharma,

This is Dominic L. from Applications Engineering at National Instruments. How would you like to communicate between the cFP-2020 and cFP-1808 module? Two methods of communication can be used: ethernet or serial. I would recommend using ethernet simply because it is faster. Once deciding to use ethernet, you can choose a protocol: OPC, FieldPoint API/driver, or Modbus. I believe Modbus is the fastest protocol. To help you get started you can search the discussion forum for more information on FieldPoint and Modbus.

The cFP-1808 module requires FieldPoint 4.1.2 or later. If possible, I would work with FieldPoint 5 because that would allow you to use simple FP-read and FP-write VIs rather than making your 1808 a Modbus slave (with older drivers).

Compact FieldPoint cFP-1808 Quick Start Guide:

http://www.ni.com/pdf/manuals/374176a.pdf 

FieldPoint cFP-20xx Quick Start Guide:

http://digital.ni.com/manuals.nsf/websearch/EEBF19C2575DDE9E86256CFD007E43EA

FieldPoint Installation/Configuration:

http://www.ni.com/support/fieldpoint/fpenet.htm

Please read through these manuals. If you need further assistance I would be happy to assist you.

I hope this helps.

Thanks so much and have a great day!