[Halld-controls] Comments on HV control for BCAL

[Elton Smith]

Hi Hovanes,

Thanks for the reply. See below for comments. Thanks, Elton.
On 3/21/14 5:28 PM, Hovanes Egiyan wrote:
> Hi Elton,
> Thanks for the feedback. Some of the bullets were easy to fix, see 
> comments below.
> Some of them need to wait about a month for Vanik to come back to JLab.
> Hovanes.
>
> On 03/20/2014 11:13 AM, Elton Smith wrote:
>> Hi Nerses,
>>
>> I have been compiling feedback on the BCAL HV control
>>
>> 1. Would like to highlight the channel that has been selected. At the
>> moment the channel number is displayed, but it would be nice to have a
>> visual clue to point to the selected channel
> Vanik needs to be here to implement this feature.
Ok.
>> 2. The "show bias channels" window will not allow the voltage to be set
>> above 70 V. The "set bias channels" window does not have this 
>> restriction.
> Fixed .
Good.
>> 3. The histogram display of the current is not operational
> Fixed
Good.
>> 4. In the "set bias channels" window the measured temperature seems to
>> display the measured voltage.
> Fixed. Note that "set voltage according to measured temperature" for 
> modules or the two sides  will
> not work properly, may produce unpredictable result. Do not use that 
> option! Set voltages according
> to the value that you type in. Vanik needs to come back to fix this 
> feature.
Ok. We are currently setting the voltage based on the typed temperature 
input. It seems this works as it should.
>> 5. The "red" status on the overall display will remain ON even if some
>> of the HV channels are on. The status will only turn green if all four
>> HV channels from a given module are all on. For example, if one of the
>> four HV channels from one module is off, that module will show "red".
>> However, it is good to be able to look at the overall display and see if
>> ANY channels are on. We may need to add another color, e.g. orange, that
>> would show that some of the HV channels are on.
> The problem might be resolved when Vanik fixes the bug with setting
> parameters for the whole side.
Ok.
>> * Finally, the issue of some channels staying at zero volts, even if the
>> set voltage is 75 V. Yesterday I found this problem for BCAL module 13,
>> which is a completely different HV module from previously identified
>> module. I will continue to debug this; in the previous case, the
>> channels were cleared when we unplugged the IPOD crate and rebooted 
>> the IOC.
> This needs more investigation.
We will continue to diagnose it.
>> Thanks, Elton.
>>
>>
>>
>> Elton Smith
>> Jefferson Lab MS 12H5
>> 12000 Jefferson Ave STE 16
>> Newport News, VA 23606
>> (757) 269-7625
>> (757) 269-6331 fax
>>
>>
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>