RE: Suggestions wanted on IOC hardware

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

My IOCs almost exclusively use Ethernet, RS-232/485 (mostly using Ethernet terminal servers), and USB.  The only specialized PCIe hardware I am using are a few CoaXPress frame grabbers for high-speed cameras.

The IOCs operate on ms time scales.  For faster things we use dedicated hardware, mostly COTS devices like those from Measurement Computing, LabJack, etc.

Mark


-----Original Message-----
From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of J. Lewis Muir via Tech-talk
Sent: Wednesday, May 21, 2025 10:07 AM
To: James P. Withrow <jwithrow at cornell.edu>
Cc: Tech-talk at aps.anl.gov
Subject: Re: Suggestions wanted on IOC hardware

On 05/21, James P. Withrow via Tech-talk wrote:
> I'm investigating the eventual migration of our control system to EPICS, and as such, I would like to solicit community input on IOC hardware which I can use as a 'boilerplate' configuration for common tasks like sensor (I2C/SPI) polling, instrumentation (RS232/485), and general IO.

Hi, Jim!

Mark Rivers has designed, implemented, and documented a solution for replacing VME-based IOCs with x86-64-based IOCs:

  https://urldefense.us/v3/__https://github.com/CARS-UChicago/GSECARS-EPICS/blob/master/docs/Replace_VME/ReplaceVME.pdf__;!!G_uCfscf7eWS!ZNOlk2G3OhVLMrgf9ESSEHRywCHb_eFtLPR0N-XOVGwH-OMyRczbD1OOd8ylpNb2JuJgFBBUr2_eUBQoZjLYSA$ 

I think it's very good, but of course it depends on what you want to do.

Regards,

Lewis