experiences with scada packages in the lhc division
DESCRIPTION
Experiences with SCADA packages in the LHC division. F. Momal, CERN, Geneva. The Control Structure. Siemens PLCs. Ethernet - Sinec H1,TCP/IP. FactoryLink on HP/UX. PCR. String Control Room. The Control Structure. Siemens PLCs. Ethernet - Sinec H1,TCP/IP. SM18 common - PowerPoint PPT PresentationTRANSCRIPT
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F.Momal / LHC-IAS-FS
Experiences with SCADA packages in the LHC division
F. Momal, CERN, Geneva
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F.Momal / LHC-IAS-FS
The Control Structure
FactoryLink on HP/UX
Siemens PLCs
Ethernet - Sinec H1,TCP/IP
String Control Room
PCR
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F.Momal / LHC-IAS-FS
The Control Structure
StringSM18 commoncryogenic facilities
FactoryLinkon HP/UX FL on
HP/UX
Ethernet - Sinec H1,TCP/IP
Siemens PLCs
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F.Momal / LHC-IAS-FS
Services
• Connection to the central archiver
• Connection to the Central Alarm Server
• Connection to the GSM
• Web gateway• Extensions to FactoryLink (XYplot, Mathwork)
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F.Momal / LHC-IAS-FS
What worked well
• General stability
• Easy to install
• Easy and fast applications development
• Easy to maintain
• Easy to extend
• Product evolved according to the market
• Bugs were generally solved in the following release
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F.Momal / LHC-IAS-FS
Problems• Instability with the X Windows sessions.
• Impossibility to have a session at home.
• Some hardware failures.
• Hard to write reusable code.
• Backward compatibility was not perfect.
• Difficulties to debug network problems.
• Difficult to use built-in database connection
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F.Momal / LHC-IAS-FS
Why changing ?
• Europeans systems were now existing.
• Market trend seemed to be drifting towards Windows NT.
• Windows NT stability OK.
• PCs are powerful enough.
• Windows based standard appearing (OPC).
• Cost
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F.Momal / LHC-IAS-FS
Windows advantages• Cheaper: hardware, software and
maintenance
• People are used to the system
• Large amount of programs to add functionality– compilers– drawing programs– math tools
• Interoperability standards
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F.Momal / LHC-IAS-FS
Market Survey’s Criteria Run under Windows NT. Client-server and modular structure. Implement the mainly used automation protocol. Offer a complete API. Have an object-oriented RTDB. Use a standard computing language as the integrated
programming language. Possible set-up using an external description source. Follow the Microsoft interoperability standards (OLE,
ActiveX and DCOM). Export the archives in a standard format. Be European.
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F.Momal / LHC-IAS-FS
PLCs
Control Network
Data Server
Hot Backup Data Server
Client
RTDB
Acq. card
Local RTDB
Application
Subscribe
On Change
- MMI- Short term archives- Gateways: Archiving Web Access Alarm Server ...
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F.Momal / LHC-IAS-FS
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F.Momal / LHC-IAS-FS
Long Term Archiving
Local Archives
DataAcquisition System
Oracle
AFS Storage
Data Description
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F.Momal / LHC-IAS-FS
Gateways to the Supervision
Data Server
Hot Backup Data Server
ClientInternet Oriented
RTDBAlarm Server
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F.Momal / LHC-IAS-FS
RealTimeDataServer
Alarm ServerArchived Data
Server
Observer
Remote Control Station
Control RoomOfficePortable
Alarm Server
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F.Momal / LHC-IAS-FS
The Complete Structure
Remote Control Station
Control RoomOfficePortable
RealTimeDataServer
Alarm Server
Archived DataServer
Observer
Oracle
AFS Storage
Data Description
Archiver