• CAN interface for low voltage supplies and front-end ELMBs (Embedded Local Monitor Boards)

• SYS TEC USB-CANmodul16 • Previous underuse of CAN ports • New architecture enables more efficient layout with fewer modules

• All compatibility problems were removed • Any combination of sub-applications was made possible • Proposed merging minimized I/O interface complexity

Old computers: DELL 1950/2950 New computers: M610 blades • Reduction to 3 servers • Additional server available for

load distribution (if necessary)

Software and databases had to be merged to enable this transition

1) ETH Zurich, Switzerland 2) University of Wisconsin-Madison, U.S.A.

O. Holme1, D. Di Calafiori1, G. Dissertori1, L. Djambazov1, W. Lustermann1, S. Zelepoukine1,2 On behalf of the CMS ECAL group

MOPPC035

Built with many industrial technologies: • Microsoft Windows • SIMATIC WinCC Open Architecture supervisory

control and data acquisition toolkit • Open Platform Communications (OPC) • Ethernet, CAN and RS-485 for data transfer • S7, Modbus, CANopen and vendor specific protocols

Uses the CERN Joint Controls Project (JCOP) Framework

• Investigation with CERN and CMS for CAN-Ethernet solution

Acknowledgements Swiss National Science Foundation, Switzerland

80 Bias voltage ELMBs 54 Low voltage supplies

54 Low voltage supplies 28 Low voltage supplies

2 Bias voltage ELMBs 22 Temperature and Humidity ELMBs

Previous layout

New layout

Grey ports are unused

Incompatibilities: - Internal object names - I/O interface numbering

Server 1

Monitoring & safety system

interfacing

Server 2

Wiener power supply

monitoring

Server 3

CAEN power supply

Monitoring

CAEN Hardware

Wiener Hardware

CA

EN

Eth

erne

t pr

otoc

ol

Wie

ner C

AN

pr

otoc

ol

Safety Systems

Humidity Monitoring

CA

Nop

en

Temperature & Bias Voltage

Monitoring

S7

Mod

bus-

TCP

Proposed merged architecture

• Frequent modifications to software and DBs required testing • Validation of new WinCC OA and JCOP Framework versions • Automatic test environment created using Python & Jenkins CI

• Databases for application images (ConfDB) and historical data (CondDB) • ConfDB merging simplifies deployment, maintenance and operations • CondDB merging was essential due to WinCC OA design

Yes

No

Test passes

• Sensitive test of validity • Problems identified quickly • Enables rapid issue resolution

ConfDB Application

instance

Unified schema

Individual sub-application schemas

Sub-app 1 +

Sub-app 2

Sub-app 1

Sub-app 2

Test fails

Reference image files

Application source files

Fuzzy comparison

Instance image files

Investigate & resolve

Are equal?

• Significant consolidation and merging achieved • Automatic testing ensured smooth re-integration • Working towards goal of all readout via Ethernet