Host Engineering Forum

General Category => Do-more CPUs and Do-more Designer Software => Topic started by: DLTimmons on December 15, 2017, 01:49:34 PM

Title: IP connections
Post by: DLTimmons on December 15, 2017, 01:49:34 PM

What would be the best way to connect to 42 drives by Ethernet? Emerson M700 drive with built in Ethernet.

Title: Re: IP connections
Post by: BobO on December 15, 2017, 01:54:59 PM

What protocols does the drive support?

Title: Re: IP connections
Post by: DLTimmons on December 15, 2017, 02:19:19 PM

Looks like the main protocol is Ethernet/IP

They list this in there literature.
Onboard real-time Ethernet (IEEE 1588 V2) uses
RTMoE (Real-Time Motion over Ethernet) to provide fast
communication and accurate axis synchronization

Title: Re: IP connections
Post by: BobO on December 15, 2017, 02:34:51 PM

I'd say it is possible to create 42 Ethernet/IP client devices and run them all. I get a little nervous because that is a level of stress testing that we haven't done, and I worry a tiny bit about system heap and IP stack resources being overrun, but it should work. I would personally probably use a handful of -10 or modular CPUs as concentrators just to make sure the comms stay crisp.

Title: Re: IP connections
Post by: DLTimmons on December 15, 2017, 03:14:47 PM

I would use 4 do-mores and breakup the program. This ties back to my post on the general discussion forum where I going back to.