Difference between revisions of "HV HowTo for Experts"
(New page: First of all, please be aware of the simple instructions for users: https://hallaweb.jlab.org/wiki/index.php?title=HowTo_for_Users =================== Architecture =====================...) |
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=================== Architecture ====================== | =================== Architecture ====================== | ||
| − | The | + | The HV crates sit in the hall, e.g. on the detector stacks. A set of cards with 12 channels of negative or positive HV are inserted into the crates. |
| + | A custom "serial board" (built by Javier Gomez and Jack Segal) talks to the cards. This "serial board" replaces an old, obsolete motherboard. | ||
| + | A Perl "Shim" server (written by Brad Sawatzky) runs on a PC nearby the HV crate. The "Shim" server uses (via the Perl "Expect" module) a low-level C | ||
| + | code written by Javier to interact with the HV crate. On the User end, a Java GUI (written by Roman Pomatsalyuk) displays the HV information and | ||
| + | provides User control. This Java GUI talks to the Shim server. Alternatively, the Java GUI can talk to the motherboard via a Portserver. The | ||
| + | latter alternative is being phased out, but still exists in two places at the moment: the beamline HV and one of the HV crates in the test lab | ||
| + | DVCS setup, as I write this (Jan 2014). | ||
| + | |||
| + | All the elements in this chain must be working in order to have control and readback of HV. | ||
| + | |||
| + | |||
| + | =================== Existing Crates ====================== | ||
| + | |||
| + | Here is a list of HV crates in Hall A | ||
| + | |||
| + | Location .... PC or Portserver for Shim .... Config on ~/slowc .... How to start on adev | ||
| + | |||
| + | Left HRS (1 crate) ... Intel PC: intelha3 .... LEFT ..... cd ~adev/slowc ; ./hvs LEFT | ||
| + | |||
| + | Right HRS (top crate) ... laptop: ahut1 .... RIGHT | ||
| + | |||
| + | Right HRS (bottom crate) ... Intel PC: halladaq8 ... RIGHT ... cd ~adev/slowc ; ./hvs RIGHT (this starts both crates) | ||
| + | |||
| + | Beamline ...... portserver hatsv4: 2003 .... BEAMLINE ..... cd ~adev/slowc ; ./hvs BEAMLINE | ||
Revision as of 11:59, 7 January 2014
First of all, please be aware of the simple instructions for users:
https://hallaweb.jlab.org/wiki/index.php?title=HowTo_for_Users
============= Architecture ================
The HV crates sit in the hall, e.g. on the detector stacks. A set of cards with 12 channels of negative or positive HV are inserted into the crates. A custom "serial board" (built by Javier Gomez and Jack Segal) talks to the cards. This "serial board" replaces an old, obsolete motherboard. A Perl "Shim" server (written by Brad Sawatzky) runs on a PC nearby the HV crate. The "Shim" server uses (via the Perl "Expect" module) a low-level C code written by Javier to interact with the HV crate. On the User end, a Java GUI (written by Roman Pomatsalyuk) displays the HV information and provides User control. This Java GUI talks to the Shim server. Alternatively, the Java GUI can talk to the motherboard via a Portserver. The latter alternative is being phased out, but still exists in two places at the moment: the beamline HV and one of the HV crates in the test lab DVCS setup, as I write this (Jan 2014).
All the elements in this chain must be working in order to have control and readback of HV.
============= Existing Crates ================
Here is a list of HV crates in Hall A
Location .... PC or Portserver for Shim .... Config on ~/slowc .... How to start on adev
Left HRS (1 crate) ... Intel PC: intelha3 .... LEFT ..... cd ~adev/slowc ; ./hvs LEFT
Right HRS (top crate) ... laptop: ahut1 .... RIGHT
Right HRS (bottom crate) ... Intel PC: halladaq8 ... RIGHT ... cd ~adev/slowc ; ./hvs RIGHT (this starts both crates)
Beamline ...... portserver hatsv4: 2003 .... BEAMLINE ..... cd ~adev/slowc ; ./hvs BEAMLINE
