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<== Date ==> <== Thread ==>
Subject: RE: Hardware needed to setup an IOC
From: <[email protected]>
To: <[email protected]>, <[email protected]>
Date: Thu, 16 Jun 2011 15:50:19 +0000

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: [email protected] [mailto:[email protected]] On Behalf Of Andrew Cox
Sent: 14 June 2011 22:28
To: [email protected]
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


 

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Hardware needed to setup an IOC Andrew Cox
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