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<== Date ==> | <== Thread ==> |
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Subject: | Re: Cryocon and TSI hardware support? |
From: | David Maden <[email protected]> |
To: | Steve Lewis <[email protected]>, [email protected] |
Date: | Wed, 05 Dec 2007 16:58:26 +0100 |
I also need support for the Lakeshoe 340. The URL you gave does appear to be blocked. Perhaps you could make it available some other way. Much thanks in advance!
Shepherd, EL (Emma) wrote:Hi all,
Has anyone written any EPICS support for a temperature controller or temperature monitor made by Cryogenic Control Systems (http://www.cryocon.com/)?
I'm also looking for support for a helium depth indicator made by Twickenham Scientific Instruments (http://www.twicksci.co.uk/)
They all have serial interfaces so I am thinking about writing EPICS support using Streams if nobody has done this already.
Cheers,
Emma
Hi Emma,
We don't have this particular temperature controller in our collection of serial devices at SLS, but we do have the Lakeshore models 331 and 340. Unless the PSI firewalls are blocking access, the CVS repository of the software should be visible here:
www.sls.psi.ch/cgi-bin/cvsweb.cgi/G/DRV/lakeshore/
We also have support for Oxford Instrument's cryojet with liquid nitrogen auto fill controller (same URL, substitute "cryojet" for "lakeshore"). They both have the same structure: a collection of simple stream-device EPICS records for sending commands and status requests to the device, glued together with an snl program. There's a bit of documentation on setting up the cryojet at:
www.sls.psi.ch/controls/help/howto/cryojet.html
but unfortunately nothing for the Lakeshore controllers.
Getting the Cryogenic Control Systems device to work with the Lakeshore code might simply be a case of a new stream-device protocol file.
For the helium depth indicator, you might consider simply connecting its analogue output to an ADC channel, rather than using its serial port.
Regards, David