RE: Hardware needed to setup an IOC

[<matthew.pearson@diamond.ac.uk>]

Hi Andrew,

 

It depends how much data you are transferring/handling of course. But I would expect any modern PC will do the job.

 

For example, on our beamlines here we use one Dell R200 server to talk to >10 ethernet based motor controllers, with minimal impact on CPU and memory.

 

I did a test a few years ago with a 2GHz Pentium 4 desktop. I connected up 12 ethernet motor controllers. Polling two of them at 20Hz (each poll reading all 8 axes), and polling the rest at 2Hz. I was seeing about  4% CPU use.

 

Also, Epics is designed to have small memory footprint as it runs on all sorts of embedded devices.

 

Cheers,

Matthew

 

From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of Andrew Cox
Sent: 14 June 2011 22:28
To: tech-talk@aps.anl.gov
Subject: Hardware needed to setup an IOC

 

Hi All,

I am a newbie to EPICS and I wanted to see what kind of hardware is needed to install a soft IOC. I wanted to control upto 25 LAN/ GPIB/ USB devices with more in the future.
The devices include Power supplies, oscilloscopes, Signal generators, EPICS supported other test equipment.

Will a dell computer with Red hat lInux and a few cisco network switches work for so many devices or do I need a server class computer ?

I am fairly new to EPICS and I do not know the requirements.

I will appreciate if you guys can lead me in the right direction.


Thanks,

Andrew

 

-- 

This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail.
Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd.
Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message.
Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom