01-16-2014 04:43 PM
Hi all,
I am preparing to work on an application which is going to reading from up to 500 Modbus input registers on a CompactRIO over Modbus Ethernet. I've put together some minor test VIs on the local network to test the Modbus connectivity and understand in the shared variable minding mechanism.
To save potential headaches in the future, do you all have any best programming/proejct management practices for using high channel count Modbus applications? Has anyone done high channel count testing (similar to the link below) but for shared variables bound to a Modbus I/O Server? Any caveats I should keep in mind?
Performance Benchmarks for Network Published Shared Variables
http://www.ni.com/tutorial/14675/en/
Thanks,
Chris
d2itechnologies.com
01-17-2014 06:27 PM
d2itechnologies,
Although we don't have any official documents on this benchmark, you may find more user suggestions by posting in the Industrial Communications forum. There you'll find more information on communications protocols such as Modbus.
Thanks,