11 Dec 2023, Pavel Murat, Forum, the logic of handling history variables ? 11x
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Dear MIDAS developers,
I'm trying to understand handling of the history (slow control) variables in MIDAS,
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11 Dec 2023, Stefan Ritt, Forum, the logic of handling history variables ?
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First of all it's important to understand that the slow control system has nothing to do
with events. So if you look at event statistics, these are the events with the slow control
data sent to the midas data file, not the history database. So the logging period (the one you
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12 Dec 2023, Pavel Murat, Forum, the logic of handling history variables ?
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Hi Sfefan, thanks a lot for taking time to reproduce the issue!
Here comes the resolution, and of course, it was something deeply trivial :
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13 Dec 2023, Stefan Ritt, Forum, the logic of handling history variables ?
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> Also, I think that having a sine wave displayed by midas/examples/slowcont/scfe.cxx
> would make this example even more helpful.
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28 Jan 2024, Konstantin Olchanski, Forum, the logic of handling history variables ?
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MIDAS history is very simple:
from your frontend, your write your history data to ODB /eq/xxx/variables (see below)
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21 Aug 2020, Ruslan Podviianiuk, Forum, time information
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Hello,
I have a few questions about time information:
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24 Aug 2020, Stefan Ritt, Forum, time information
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> 1. Is it possible to get "Running time" using, for example, jsonrpc? (please see
> the attached file)
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25 Aug 2020, Ruslan Podviianiuk, Forum, time information
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Thank you, Stefan
Ruslan
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25 Aug 2020, Ruslan Podviianiuk, Forum, time information
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Thank you, Stefan
>>>var d = new Date(start_time_binary);
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14 Oct 2019, Joseph McKenna, Forum, tmfe.cxx - Future frontend design
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Hi,
I have been looking at the 2019 workshop slides, I am interested in the C++ future of MIDAS.
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25 Feb 2021, Lars Martin, Bug Report, tmfe_main.cxx missing include <signal.h>
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The most recent commit (b43aef648c2f8a7e710a327d0b322751ae44afea) throws this
compiler error:
src/tmfe_main.cxx:39:11: error: 'SIGPIPE' was not declared in this scope
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25 Feb 2021, Konstantin Olchanski, Bug Report, tmfe_main.cxx missing include <signal.h>
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> The most recent commit (b43aef648c2f8a7e710a327d0b322751ae44afea) throws this
> compiler error:
> src/tmfe_main.cxx:39:11: error: 'SIGPIPE' was not declared in this scope
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26 Feb 2021, Lars Martin, Bug Report, tmfe_main.cxx missing include <signal.h>
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> BTW, for production use I recommend midas from the "release" branches, unless one
> needs a bug fix or new feature from the development branch.
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30 Apr 2008, Konstantin Olchanski, Info, triumf elog updated to elog-2.7.3-1.i386.rpm
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FYI - in conjunction with replacement of ladd00.triumf.ca, this MIDAS ELOG has been updated to the latest
version 2.7.3-2058. Please report any problems or anomalies. K.O. |
28 Aug 2008, Konstantin Olchanski, Info, triumf/t2k midas updates
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Following changes to midas produced from the TRIUMF T2K project have been
committed to svn:
1) cm_shutdown() will now SIGKILL clients that cannot be stopped via normal
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07 Aug 2020, Konstantin Olchanski, Info, update of MYSQL history documentation
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I updated the documentation for setting up a MYSQL (MariaDB) database for
recording MIDAS history: https://midas.triumf.ca/MidasWiki/index.php/History_System#Write_MYSQL-history_events
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19 May 2021, Konstantin Olchanski, Info, update of event buffer code
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a big update to the event buffer code was merged today.
two important bug fixes:
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27 Jun 2011, Konstantin Olchanski, Info, updated mhttpd history "export" function
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The mhttpd history "export" function has been converted to the new midas history
interface and should now work for SQL-based history systems. In the process,
improvements by Eoin Butler (CERN AD-5/ALPHA) were merged - adding a UNIX
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08 Jun 2006, Konstantin Olchanski, Bug Fix, updated vmicvme driver
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I commited the latest VMIC VME driver we use at TRIUMF. It has working support
for D32 and D64 DMA and can move data from the SIS3820 multiscaler through the
MIDAS frontend at > 30 Mbytes/sec on our VMICVME-7805 machines. The actual DMA
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27 Nov 2015, Konstantin Olchanski, Info, updated: note on midas history
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(update: resolve all FIXMEs, document the breakup of "structured banks")
This note documents the workings of the midas history.
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