ICALEPCS2019 - List of Keywords (ISOL)

Paper	Title	Other Keywords	Page
MOPHA059	Ultra-High Precision Timing System for the CEA-Laser Megajoule	controls, timing, laser, shielding	347
	S. Hocquet, N. Bazoge, Ph. Hours, D. Monnier-Bourdin Greenfield Technology, Massy, France T. Falgon, T. Somerlinck CEA, LE BARP cedex, France
	High power laser such as the Laser MegaJoule (LMJ) or National Ignition Facility (NIF) requires different types of trigger precision to synchronize all the laser beams, plasma diagnostics and generate fiducials. Greenfield Technology, which designs and produces picosecond delay generator and timing system for about 20 years, has been hired by CEA to develop new products to meet the LMJ requirements. About 2000 triggers are about to be set to control and synchronize all of the 176 laser beams on the target with a precision better than 40 ps RMS. Among these triggers, Greenfield Technology’s GFT10¹² is a 4-channels delay generator challenging ultra-high performances: an ultra-low jitter between 2 slaves below 4 ps RMS and a peak-to-peak wander over 1 week lower than 6 ps due to a thermal control of the most sensitive part (the thermal drift is below 1 ps/°C) and specific developments for clock management and restitution. On going investigation should bring the jitter close to 2 ps RMS between 2 slaves.
	Poster MOPHA059 [0.488 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA059
About •	paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPHA112	Improving Perfomance of the MTCA System by use of PCI Express Non-Transparent Bridging and Point-To-Point PCI Express Transactions	controls, embedded, distributed	480
	L.P. Petrosyan DESY, Hamburg, Germany
	The PCI Express Standard enables one of the highest data transfer rates today. However, with a large number of modules in a MTCA system and an increasing complexity of individual MTCA components along with a growing demand for high data transfer rates to client programs performance of the overall system becomes an important key parameter. Multiprocessor systems are known to provide not only the ability for higher processing bandwidth, but also allow greater system reliability through host failover mechanisms. The use of non-transparent bridges in PCI systems supporting intelligent adapters in enterprise and multiple processors in embedded systems is a well established technology. There the non-transparent bridge acts as a gateway between the local subsystem and the system backplane. This can be ported to the PCI Express standard by replacing one of the transparent switches on the PCI Express switch with a non-transparent switch. Our experience of establishing non-transparent bridging in MTCA systems will be presented.
	Poster MOPHA112 [0.452 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA112
About •	paper received ※ 10 September 2019 paper accepted ※ 03 November 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA018	Testing Solutions for Siemens PLCs Programs Based on PLCSIM Advanced	PLC, hardware, simulation, controls	1107
	E. Blanco Viñuela, D. Darvas CERN, Geneva, Switzerland Gy. Sallai BUTE, Budapest, Hungary
	Testing Programmable Logic Controllers (PLCs) is challenging, partially due to the lack of tools for testing. Isolating a part of the PLC program, feeding it with test inputs and checking the test outputs often require manual work and physical hardware. The Siemens PLCSIM Advanced tool can simulate PLCs and provide a rich application programming interface (API). This paper presents a new CERN made tool based on PLCSIM Advanced and the TIA Portal Openness API. The tool takes a test case described in an intuitive, tabular format, which is then executed with the full PLC program or a selected part of it, effectively allowing unit testing. The inputs can be fed and the outputs can be captured via the PLCSIM API. This way the tests can be executed and evaluated automatically, without manual work or physical hardware. Therefore, it is possible to provide an automated and scalable continuous testing solution for PLC programs to reveal errors as early as possible.
	Poster WEPHA018 [1.026 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA018
About •	paper received ※ 27 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA104	Managing Cybersecurity for Control System Safety System development environments	controls, network, software, monitoring	1343
	R. Mudingay, S. Armanet ESS, Lund, Sweden
	At ESS, we manage cyber security for our control system infrastructure by mixing together technologies that are relevant for each system. User access to the control system networks is controlled by an internal DMZ concept whereby we use standard security tools (vulnerability scanners, central logging, firewall policies, system and network monitoring), and users have to go through dedicated control points (reverse proxy, jump hosts, privileged access management solutions or EPICS channel or PV access gateways). The infrastructure is managed though a DevOps approach: describing each component using a configuration management solution; using version control to track changes, with continuous integration workflows to our development process; and constructing the deployment of the lab/staging area to mimic the production environment. We also believe in the flexibility of visualization. This is particularly true for safety systems where the development of safety-critical code requires a high level of isolation. To this end, we utilize dedicated virtualized infrastructure and isolated development environments to improve control (remote access, software update, safety code management).
	Poster WEPHA104 [0.840 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA104
About •	paper received ※ 27 September 2019 paper accepted ※ 03 November 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA124	CERN Accelerators Beam Optimization Algorithm	experiment, controls, simulation, operation	1379
	E. Piselli, A. Akroh, S. Rothe CERN, Geneva, Switzerland K. Blaum, M. Door MPI-K, Heidelberg, Germany D. Leimbach IKP, Mainz, Germany
	In experimental physics, computer algorithms are used to make decisions to perform measurements and different types of operations. To create a useful algorithm, the optimization parameters should be based on real time data. However, parameter optimization is a time consuming task, due to the large search space. In order to cut down the runtime of optimization we propose an algorithm inspired by the numerical method Nelder-Mead. This paper presents details of our method and selected experimental results from high-energy (CERN accelerators) to low-energy (Penning-trap systems) experiments as to demonstrate its efficiency. We also show simulations performed on standard test functions for optimization.
	Poster WEPHA124 [1.069 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA124
About •	paper received ※ 27 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOPHA059

Ultra-High Precision Timing System for the CEA-Laser Megajoule

controls, timing, laser, shielding

347

S. Hocquet, N. Bazoge, Ph. Hours, D. Monnier-Bourdin
Greenfield Technology, Massy, France
T. Falgon, T. Somerlinck
CEA, LE BARP cedex, France

High power laser such as the Laser MegaJoule (LMJ) or National Ignition Facility (NIF) requires different types of trigger precision to synchronize all the laser beams, plasma diagnostics and generate fiducials. Greenfield Technology, which designs and produces picosecond delay generator and timing system for about 20 years, has been hired by CEA to develop new products to meet the LMJ requirements. About 2000 triggers are about to be set to control and synchronize all of the 176 laser beams on the target with a precision better than 40 ps RMS. Among these triggers, Greenfield Technology’s GFT10¹² is a 4-channels delay generator challenging ultra-high performances: an ultra-low jitter between 2 slaves below 4 ps RMS and a peak-to-peak wander over 1 week lower than 6 ps due to a thermal control of the most sensitive part (the thermal drift is below 1 ps/°C) and specific developments for clock management and restitution. On going investigation should bring the jitter close to 2 ps RMS between 2 slaves.

Poster MOPHA059 [0.488 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA059

About •

paper received ※ 30 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPHA112

Improving Perfomance of the MTCA System by use of PCI Express Non-Transparent Bridging and Point-To-Point PCI Express Transactions

controls, embedded, distributed

480

L.P. Petrosyan
DESY, Hamburg, Germany

The PCI Express Standard enables one of the highest data transfer rates today. However, with a large number of modules in a MTCA system and an increasing complexity of individual MTCA components along with a growing demand for high data transfer rates to client programs performance of the overall system becomes an important key parameter. Multiprocessor systems are known to provide not only the ability for higher processing bandwidth, but also allow greater system reliability through host failover mechanisms. The use of non-transparent bridges in PCI systems supporting intelligent adapters in enterprise and multiple processors in embedded systems is a well established technology. There the non-transparent bridge acts as a gateway between the local subsystem and the system backplane. This can be ported to the PCI Express standard by replacing one of the transparent switches on the PCI Express switch with a non-transparent switch. Our experience of establishing non-transparent bridging in MTCA systems will be presented.

Poster MOPHA112 [0.452 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA112

About •

paper received ※ 10 September 2019 paper accepted ※ 03 November 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA018

Testing Solutions for Siemens PLCs Programs Based on PLCSIM Advanced

PLC, hardware, simulation, controls

1107

E. Blanco Viñuela, D. Darvas
CERN, Geneva, Switzerland
Gy. Sallai
BUTE, Budapest, Hungary

Testing Programmable Logic Controllers (PLCs) is challenging, partially due to the lack of tools for testing. Isolating a part of the PLC program, feeding it with test inputs and checking the test outputs often require manual work and physical hardware. The Siemens PLCSIM Advanced tool can simulate PLCs and provide a rich application programming interface (API). This paper presents a new CERN made tool based on PLCSIM Advanced and the TIA Portal Openness API. The tool takes a test case described in an intuitive, tabular format, which is then executed with the full PLC program or a selected part of it, effectively allowing unit testing. The inputs can be fed and the outputs can be captured via the PLCSIM API. This way the tests can be executed and evaluated automatically, without manual work or physical hardware. Therefore, it is possible to provide an automated and scalable continuous testing solution for PLC programs to reveal errors as early as possible.

Poster WEPHA018 [1.026 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA018

About •

paper received ※ 27 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA104

Managing Cybersecurity for Control System Safety System development environments

controls, network, software, monitoring

1343

R. Mudingay, S. Armanet
ESS, Lund, Sweden

At ESS, we manage cyber security for our control system infrastructure by mixing together technologies that are relevant for each system. User access to the control system networks is controlled by an internal DMZ concept whereby we use standard security tools (vulnerability scanners, central logging, firewall policies, system and network monitoring), and users have to go through dedicated control points (reverse proxy, jump hosts, privileged access management solutions or EPICS channel or PV access gateways). The infrastructure is managed though a DevOps approach: describing each component using a configuration management solution; using version control to track changes, with continuous integration workflows to our development process; and constructing the deployment of the lab/staging area to mimic the production environment. We also believe in the flexibility of visualization. This is particularly true for safety systems where the development of safety-critical code requires a high level of isolation. To this end, we utilize dedicated virtualized infrastructure and isolated development environments to improve control (remote access, software update, safety code management).

Poster WEPHA104 [0.840 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA104

About •

paper received ※ 27 September 2019 paper accepted ※ 03 November 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPHA124

CERN Accelerators Beam Optimization Algorithm

experiment, controls, simulation, operation

1379

E. Piselli, A. Akroh, S. Rothe
CERN, Geneva, Switzerland
K. Blaum, M. Door
MPI-K, Heidelberg, Germany
D. Leimbach
IKP, Mainz, Germany

In experimental physics, computer algorithms are used to make decisions to perform measurements and different types of operations. To create a useful algorithm, the optimization parameters should be based on real time data. However, parameter optimization is a time consuming task, due to the large search space. In order to cut down the runtime of optimization we propose an algorithm inspired by the numerical method Nelder-Mead. This paper presents details of our method and selected experimental results from high-energy (CERN accelerators) to low-energy (Penning-trap systems) experiments as to demonstrate its efficiency. We also show simulations performed on standard test functions for optimization.

Poster WEPHA124 [1.069 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA124

About •

paper received ※ 27 September 2019 paper accepted ※ 09 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)