1. Robert Gomez-Reino Garrido
Rack Control
Application
CMS WEEK 16 Mars 2004
11/13/2018
Robert Gomez-Reino Garrido

2. Robert Gomez-Reino Garrido
A joined project
The Rack Control is a joined project between the four LHC experiments and other CERN groups. This project concerns :
The power distribution.
The monitoring.
The cooling.
The safety systems.
ST-EL : power distribution chassis.
ST-MA : smoke detection.
EST-LEA : turbine chassis.
EP-ESS : monitoring and safety boards.
CMS: Rack Control Application (as a JCOP framework development).
11/13/2018
Robert Gomez-Reino Garrido

3. Power Distribution: CANALIS
11/13/2018
Robert Gomez-Reino Garrido

4. Monitoring and Safety Systems
Purposes
Provision of hard-wired, “last-resort” safety.
Monitoring of the rack environment.
Provision of user-definable analog inputs and digital I/O channels accessible via the DCS.
Monitoring
Air temperature.
Relative humidity.
Air circulation status.
Tangential turbine currents.
Status of the thermo-switch.
Status of rack door.
Monitoring card in situ.
Rear air temperature.
Leak detector (?)
User definable I/O.
Safety
Thermo-switch.
Smoke detector.
EP-ESS adopted the philosophy of designing only one system working either in no radiation or radiation areas.
The system provides DCS whit 16 analog input channels, 8 digital output and 8 digital input/output.
For the monitoring system must be possible to replace any component without interfering with the functioning of the equipment in the rack.
11/13/2018
Robert Gomez-Reino Garrido

5. System Implementation
Mounted entirely within the standard LHC turbine unit.
Consist of 3 components.
11/13/2018
Robert Gomez-Reino Garrido

6. System Implementation
11/13/2018
Robert Gomez-Reino Garrido

7. Robert Gomez-Reino Garrido
Monitoring card
Monitoring system designed around the ELMB.
9 pin SubD connector on the front panel (including the CAN communication and the power for the monitoring).
May be repaired without powering off the rack.
11/13/2018
Robert Gomez-Reino Garrido

8. Robert Gomez-Reino Garrido
Monitoring card
11/13/2018
Robert Gomez-Reino Garrido

9. Robert Gomez-Reino Garrido
Auxiliary card
This card is not accessible while turbine is in situ in the rack.
The thermo-switch is also in this card to avoid the possibility that this safety device can be removed from the rack.
11/13/2018
Robert Gomez-Reino Garrido

10. Robert Gomez-Reino Garrido
Auxiliary card
11/13/2018
Robert Gomez-Reino Garrido

11. Rack Control Application
The Rack Control Application is a PVSSII application that will be integrated in the JCOP framework.
Dedicated to the control and monitoring of the rack systems of the LHC experiments.
Structure and Configuration
The application has a hierarchical structure where zones have racks and the racks have sensors.
The zones, racks and sensors can be either created manually or reading from database. To be able to benefit from this option the experiments should use a common structure database.
Rack Control
Zones
Racks
Sensors
11/13/2018
Robert Gomez-Reino Garrido

12. Information Structures
Zone Info
Zone name
Geometrical Info (Width and Depth)
Description and Drawing
Display, State
Last update
DATABASE INFO
Rack Info
Rack name
Geometrical Info (Width and Depth, Height?)
Number and Row
Position (X, Y, orientation)
Detector, user, responsible and Comments
Weight
Last Change
Sensors and sensors type
PLC address
Last Update
Important amount of necessary info is readable from database.
No need to configure manually the ELMBs or the PLCs addresses.
11/13/2018
Robert Gomez-Reino Garrido

13. Robert Gomez-Reino Garrido
Functionality
Once the zones are configured the user will be able to access the different levels to have the monitoring information and to send commands. A possible structure can be:
Top Level (Rack Control)
Panel visualizing the status of the different zones (ok, warning, error…) summarizing that information of the sensor of each rack of the zones.
Zone Level
Panel containing a picture of the geometrical distribution of the racks in the zone. Contains also the information of the zone.
The rack color in the picture represent the status of the parameter selected by the user. This can be the general state of the rack. Commands (on, off…) can be send to individual racks (groups? Rows?)
Trends of the different parameters can be access from this panel.
Information of each rack can be accessed from this panel.
Rack Level
Panel offering the information of all the environment parameters.
Additional info, crates, boards… ??
11/13/2018
Robert Gomez-Reino Garrido

14. Robert Gomez-Reino Garrido
To be done/defined
Agree about the general structure of the software (JCOP presentation 5th March 2004). Ideas are welcome :)
Whether this should appear or not in the Device Editor & Navigator and in case it should, in the logical or hardware view (in both ?)
Ask ATLAS to integrate the standard environment sensors into the ELMB framework. They will provide also the structure of the information needed to retrieve from the database for an automatic configuration of the monitoring ELMBs.
Define the communication protocol with the master PLC, to read the status and send commands (meeting 9th March 2004 ) .
11/13/2018
Robert Gomez-Reino Garrido

15. Robert Gomez-Reino Garrido
11/13/2018
Robert Gomez-Reino Garrido

16. Robert Gomez-Reino Garrido
11/13/2018
Robert Gomez-Reino Garrido

17. Robert Gomez-Reino Garrido
11/13/2018
Robert Gomez-Reino Garrido

18. Robert Gomez-Reino Garrido
11/13/2018
Robert Gomez-Reino Garrido

19. Robert Gomez-Reino Garrido
11/13/2018
Robert Gomez-Reino Garrido

20. Robert Gomez-Reino Garrido
11/13/2018
Robert Gomez-Reino Garrido