 26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
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Dear experts,
we have a problem when trying to run a MIDAS DAQ which worked in the past on the same PC (but on a different
network). We get the following error messages when starting a new run:
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 26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
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Dear Stefan,
thank you very much for your reply. We could finally fix the problem by replacing "scarlett" with "scarlett.localdomain" in our
hostname configuration file /etc/hostname (under debian).
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04 May 2018, Francesco Renga, Forum, ODB full
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Dear expert,
I'm developing a frontend and I'm getting this kind of error at each event:
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11 Sep 2018, Francesco Renga, Forum, Launching an executable script from the sequencer
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Dear experts,
is there any way to launch an executable script on the host computer from the MIDAS
sequencer? If not, is there any interest to develop such a feature?
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11 Mar 2019, Francesco Renga, Forum, Run length
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Dear all,
I need to implement a DAQ sequence where a short run (100 events, which takes a couple of
minutes) is taken every hour, with a long run in between two short runs. In the sequencer, I can do:
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12 Mar 2019, Francesco Renga, Forum, Problem stopping every second run
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Dear all,
I'm running a DAQ frontend and it works well if one single run is
taken. If I try to take a second run right after, the run is performed but, when
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03 Apr 2020, Francesco Renga, Info, CLOCK_REALTIME on MacOS
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Dear all,
I'm trying to compile MIDAS on MacOS 10.10 and I get this error:
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19 May 2021, Francesco Renga, Suggestion, MYSQL logger
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Dear all,
I'm trying to use the logging on a mysql DB. Following the instructions on
the Wiki, I recompiled MIDAS after installing mysql, and cmake with NEED_MYSQL=1
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21 May 2021, Francesco Renga, Suggestion, MYSQL logger
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I solved this, it was a failed "make clean" before recompiling. Now it works.
Sorry for the noise.
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08 Jul 2021, Francesco Renga, Forum, Problem with python file reader
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Dear experts,
while trying to readout a MIDAS file from a python script. I get the error below at the very first event. Any hint?
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30 Sep 2021, Francesco Renga, Forum, OPC client within MIDAS
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Dear all,
I need to integrate in my MIDAS project the communication with an OPC UA
server. My plan is to develop an OPC UA client as a "device" in
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22 Oct 2021, Francesco Renga, Forum, mhttpd error
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Dear all,
I am trying to make the MIDAS web server for my DAQ project accessible from other machines. In the ODB, I activated the necessary flags:
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25 Oct 2021, Francesco Renga, Forum, mhttpd error
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It worked, thank you very much!
Francesco
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25 Oct 2021, Francesco Renga, Forum, Logger crash
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Hello,
I'm experiencing crashes of the mlogger program on the time scale of a couple
of days. The only messages from MIDAS are:
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09 Nov 2021, Francesco Renga, Forum, Issue in data writing speed
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Dear all,
I've a frontend writing a quite big bunch of data into a MIDAS bank (16bit output from a 4MP photo camera).
I'm experiencing a writing speed problem that I don't understand. When the photo camera is triggered at a low rate (< 2 Hz)
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10 Feb 2022, Francesco Renga, Forum, OPC client within MIDAS 
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Dear all,
I finally succeeded to get a working driver for the communication with an OPC
UA server. It is based on the open62541 library and I use it in combination with the
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19 Jun 2022, Francesco Renga, Forum, Alarm on variable not updating
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Dear all,
I've an ODB equipment that sometimes loses the connection with the hardware, so that the variables are not updated anymore. The connection can be
restored by restarting the frontend. It would be useful to have an alarm based on the time from the last update of some variable (i.e. the alarm is triggered |
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23 Oct 2023, Francesco Renga, Forum, Device with inputs and outputs
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Dear all,
I'm writing a very simple device driver starting from the nulldev.cxx
example.
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17 Jan 2024, Francesco Renga, Forum, History tags
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Dear experts,
I would like to have some clarification about the meaning and use of the
tags in the ODB under /History/Tags.
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25 Aug 2011, Francesco Prelz, Forum, 64-bit integer support in MIDAS
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Hi,
I've been doing some preliminary work to use at least the MIDAS
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