The (prototype) C&V Framework component used for the SPD Cooling Control

A.Tauro, G.De Cataldo

The SPD cooling system control

The SPD cooling system is controlled by a dedicated Schneider PLC Process Control functions:

Common outlet pressure controlled by the liquid pump speed Common inlet pressure controlled by the compressor speed Operating cycle (Stop, Stand-By, Run and Recovery) General System Status (Alarm and Warning)

Distribution Control functions: the PLC doesn’t control the distribution lines except the OPEN-

CLOSED-LOCKED status of each loop.

The SDP cooling plant

In the rack on the left are located the pumps, the loop manifolds and all the relevant sensors and actuators to monitor and control the hardware.

In the right rack are located respectively:

The local operator panel that allows for a full monitoring and plant control; The plant operation from this panel doesn’t require any PVSS project; however it will be mandatory for its integration in the DCSThe Schneider PLC;

Final communication scheme

Alice HMPID

ALICEDCS &detector

DCS

ProcessPLC

MODBUS TCP/IP

GatewayPLC

TIMTS/CVSCADA

CCCTS/CVSCADA

Actual communication scheme

In order to safely manage the communication between all the process PLCs of the ALICE experiment and the technical network, the TS/CV/DC group will install in the experimental cavern the Gateway PLC.

AliceSPD

ProcessPLC

CCC = CERN Control CenterTIM=Technical Installation Monitory

TIM

Available Digital programmable I/O (ex: relays for Interlocks)

GatewayPLC

MODBUS TCP/IP

CCCTS/CVSCADA

The FW C&V prototype component

PVSS 3.01 SP1 fwCoolingAndVentilation_0.14:

The JCOP has not yet officially released the component. It will be done in the next months after the collection of comments and suggestions from the 4 LHC experiments

“SPD.scy” file: Provided by the ST/CV group. Respects the

naming convention EDMS 585920. The time schedule for delivering to others sub-

detectors the scy file is not yet available, but it is under discussion in the ST/CV group. For the HMPID it is foreseen not before the end of June

No need to install OPC drivers

The FW C&V scy parser panel

The Plant and Loop configuration panels of the FW component

The synoptic panel of the SPD cooling plant

Each sub-detector can provide a similar synoptic panel with the representation of the cooling system and possibly the detector. It can be integrated either in the FW component, either in the monitoring zone of the FSM control panel

Second example: the synoptic panel and cooling plant for the HMPID

The FSMs of the SPD and HMPID cooling plants and their integration in the DCS

STOP STAND-BY

RUNRECOVERY

Operating cycle

OK

WARNING ALARM

General System Status

Automatic recovering when the warning is

over

Cooling

•Once the plant is delivered, each detector has to integrate the plant control in PVSS using the C&V FW component. •It is still under the responsibility of each sub-detector to integrate the cooling FSMs in the DCS FSM. A possible hierarchy is presented in figure. Details can be discussed case by case. •In the ACC is under way the discussion of a project integrating, after the pre-installation phase, all the ALICE cooling plants in a unique control system.

Exit on local RESET

Severe alarm conditions

Severe alarm conditions

Synchronization tables

COOLINGOperating

CycleGeneral

System Status

STOP STOP OK

STANDBY STANDBY OK

RUN RUN OK

WARNING RUN WARNING

ERROR STOP ERROR

Control Unit (CU)

Logic Unit (DU)

Device Unit

HVPSiDet Mod 1

DetectorDCS

Sect-1Sect-1

MajorityMajority

LVSect1HVSect1

Ch Ch

HV P Supply

MajorityMajority

LVPSiLVPSi

LV P Supply

Infrastr

Gas CoolLoop

Coo Plant

Oper Cy G sys St

INFRA COOLING HV PS LV PS

OFF STOP OFF OFF

STANDBY STANDBY ON ON

READY RUN ON ON

WARNING WARNING

ERROR ERROR OFF

NO_CONTROL NO_CONTROL

WA_REPAIR

ER_REPAIR

PWS_FAILURE PWS_FAILURE

INTERLOCK INTERLOCK

INTERLOCK_WENT INTERLOCK_WENT(Not yet final)

Conclusions

The FW component and the scy file (provided by the TS/CV group) have been successfully tested with the SPD cooling plant;

For the HMPID the scy file will be released not before the end of June 06, and for the remaining cooling plants the schedule is being studied;

During the pre-installation, the cooling plant control has to be done at level of single sub-detector; therefore the corresponding cooling FSM has to be integrated in each DCS.

Each sub-detector has to prepare a synoptic panel with the representation of the cooling system and possibly the detector. This user panel can be used in both the FW component and in the FSM control panel.