CERN | COMPASS | COMPASS DCS

   

2.2 Control of High Voltage system

FE devices for HV system includes 1 VME (controlling 8 Caen HV crates) and 2 PCs (controlling 5 Caen HV crates). All these hosts are running the SLiC application from the same directory located in AFS. Anyhow, the SLiC logging mechanism requires also the local Linux account because the usage of fifos (read README -file).

2.2.1 pccofe14.cern.ch

This VME computer with Linux Red Hat 6.1 OS is used mainly for controlling all the Caen Hv crates located inside the beam area. In addition to HV control the VME contains also a CAN interface board for Wiener Fan Tray control implemented by Alexander Schweimler (EP/HL).

For the HV control CPU runs 2 SLiC processes which reads data through 2 Caenet-VME interface boards from 2 different Caenet lines. The read data is sent to pccompass04 via ethernet using DIM Client-Server procedure i.e. SLiC processes acts as a servers publishing data to the Clients running under PVSS system.

pccofe14 can be accessed only remotely by using SSH and onl -account.

For starting/stopping the SLiC processes one has to be logged in as onl (password: "*******"). The currently used SLiC version is installed under following directory:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137

This folder contains all the "core" files needed by SLiC processes for Caen HV control. README -file for SLiC, which guides the usage of SLiCs, can be found also from this directory. Following directory contains various different configuration files for SLiC processes which were used during the test period in order to run different setups in Caenet chains:

/afs/cern.ch/compass/detector/control/SLiC/configFiles

These xml files are an output of File Maker database running in pccompass03 and the files contains all the information about the structure of CAENet network needed by SLiC.

To start both SLiC processes one has to type following:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/startupScript_vme

If only the 1st chain wanted to be read:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/startupScript_vme_1&

If only 2nd chain wanted to be read:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/startupScript_vme_2&

By default the configuration file to be used for 1st caenet line is called caenet_1.xml and for the 2nd caenet line the file is caenet_2.xml. These files can be found from directory containing all the configuration files.

Log files will be generated after starting the SLiC processes into following directory:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/log/

Note: SLiC is a multi-thread application and therefore all the threads have to be killed when one wants to stop SLiC. This can be done using following command: "killall -9 slic". This will stop the reading from the both caenet lines.


2.2.2 pctri07.cern.ch

This Linux PC is used by Hodoscope group as a workstation, but also for controlling 1x SY527 Caen Hv crate located in one of the control rooms. It runs a SLiC process which reads data through Caenet-ISA interface card located in PC. The read data is sent to pccompass04 via ethernet using DIM Client-Server procedure i.e. SLiC process acts as a server publishing data to the Clients running under PVSS system.

pctri07 can be accessed remotely by using either SSH or Telnet. The AFS account to be used is onl with the mentioned password. This system has also local account named compassdcs with mentioned password.


The currently used SLiC version is installed under following directory:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137

This folder contains all the "core" files needed by SLiC process. README -file for SLiC, which guides the usage of SLiC, can be found also from this directory. Following directory contains needed configuration file for SLiC process:

/afs/cern.ch/compass/detector/control/SLiC/configFiles

xml file called pctri07.xml is an output of File Maker database running in pccompass03 and the file contains all the information about the structure of CAENet network needed by SLiC.

To start SLiC process one has to type following:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/startupScript_hod&

By default the configuration file to be used is called pctri07.xml and can be found from directory containing all the configuration files.

Log file will be generated after starting the SLiC processes into following directory:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/log

Note: SLiC is a multi-thread application and therefore all the threads has to be killed when one wants to stop SLiC. This can be done using following command: "killall -9 slic".


2.2.3 na58pc037.cern.ch

This Linux PC is used by BMS group as a workstation, but also for controlling 4x SY403 Caen Hv crate located in BMS room. It runs a SLiC process which reads data through Caenet-ISA interface card located in PC. The read data is sent to pccompass04 via ethernet using DIM Client-Server procedure i.e. SLiC process acts as a server publishing data to the Clients running under PVSS system.

na58pc037 can be accessed remotely by using either SSH or Telnet. The AFS account to be used is onl with the mentioned password. This system has also local account named compassdcs with password: ********.

The currently used SLiC version is installed under following directory:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/

This folder contains all the "core" files needed by SLiC process. README -file for SLiC, which guides the usage of SLiC, can be found also from this directory. Following directory contains needed configuration file for SLiC process:

/afs/cern.ch/compass/detector/control/SLiC/configFiles

xml file called na58pc037.xml is an output of File Maker database running in pccompass03 and the file contains all the information about the structure of CAENet network needed by SLiC.

To start SLiC process one has to type following:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/startupScript_bms&

By default the configuration file to be used is called na58pc037.xml and can be found from directory containing all the configuration files.

Log file will be generated after starting the SLiC processes into following directory:

/afs/cern.ch/compass/detector/control/SLiC/product200112141137/log

Note: SLiC is a multi-thread application and therefore all the threads has to be killed when one wants to stop SLiC. This can be done using following command: "killall -9 slic".


   


Last modified: 2001 - Niko Karlsson