15-16/3/04 DCS workshop G. De Cataldo, A,.Franco and A. Tauro 1 Answers from the HMPID to the ACC questions 1.Concerning global DCS overview drawing 2.Concerning

15-16/3/04 DCS workshop

G. De Cataldo, A,.Franco and A. Tauro

1

Answers from the HMPID to the ACC questions

1. Concerning global DCS overview drawing2. Concerning cooling and gas3. Concerning interlocks4. Concerning Front End Electronics5. Concerning remote access to DCS



2

URD’s HMPID Drawing Overview

And

réA

ugustinus

Ca

vern

Insid

e m

agne

tC

ountin

g room



3

Detector

CAEN

CAEN OPCserver

PVSS II PVSS II

Detector

WienerPL500F8

Ethernet

Database(s)

OPCclient

DIMclient

1331334949

22

11

1515

High Voltage Low Voltage Liquid Circulation Temp. Monitor

PVSS IIOPC client

PVSS IIOPC client

SiemensOPCserver

PLCPbus-int+3I/O+3ADC

11

5050

User interface

PVSS II

SchneiderOPCserver

Gas system

PLC

ELMBGas

E

CP

EE

C

HV LV

HMPID

Co

ntro

l ro

om

(A

CR

)

[FSM?]

PLC

1 I/O modules1 I/O modules

Detector Cooling

E

Detector2senx7modx4w

1414

Detector

2828

Detector

28/02/03

PVSS IIOPC client

126 sens.w126 sens.w

LiquidCirculation B

LiquidCirculation A

49 Ar49 Ar

8484

PLCPS+Cpu+Eint+Pbus

11

11

280280

Siemens OPCserver

OPC client

On-detector10 sensx7modx4w

I/O device(PLC or ELMB?)

OPC client

CoolingPlant

5656

CAEN

P

B and Rad: PL500 Still in the cavern?

?

Updated Overviewdetails are in red



4

HMPID Gas schematic



5

State diagram of the Gas system

Gas STOP From the HMPID DCS

The workstation running PVSS and the gas control program will be provided by the HMPID. The control program (PVSS+PLC) will be provided by the EP-TA1-GS group. It will let the user to operate the gas system according to the diagram in the figure and the HMPID DCS to acquire the system state. The control program will not accept commands from the HMPID DCS except the global STOP. This is foreseen in case of breaking of one of the C6F14 radiator.



6

Cooling

We agree that the HMPID user will be able to set the detector temperature. The set and measured parameters (Temp. ,flow..) have to be archived. The TS/CV PVSS control program will provide the system logical state ( STOP, TEST, STAND-BY and RUN) to the HMPID DCS. WishesFor test reasons, it would be good for the HMPID to have the possibility to issue a STOP command to the cooling system selecting one of the module. In case of over temperature or failure of the cooling system, an interlock line should be activated. So far both the STOP command and the standard/logic of the interlock line have not yet discussed. Note: each HMPID module is equipped with some independent temperature sensors for the FERO temperature monitoring.

PT100 IN

PT100 OUT

Although still under investigation, to control the detector temperature at least two PT100 sensors, one at the input of the cooling copper pipe on each HMPID module and the other to the output, are foreseen. In this way the control system will automatically adapt the input water temperature (and/or the flow) to the dissipated power (by the FERO sectors) in the module. The control program (PVSS+PLC) will be provided by the CERN TS/CV group while the workstation running PVSS will be provided by the HMPID group.



7

Concerning hardwired cross-system interlocks

Low Voltage/FEE

CAEN SY1527

PVSSJCOP FW, SMI++,CAEN OPC

High Voltage CoolingGas

C6F14

Circulation Physicalparameters

PLC S300

STEP 7,Simens OPC

WIENERPL500F8

External Interlocks:DSS,CSAM

Cooling WS (running a PVSS control?)

Gas WS running a PVSS control

The hardwired interlocks connecting the HMPID subsystems are shown at the bottom of the figure. The gas system will release a normally open relay when the gas is “bad” and the gas system will be put in the STOP state (that will be notified to the HMPID DCS). In the already installed HMPID scheme, the opening of the (e.g.) Gas Interlock relay, removes +12 Volt from the SY1527 remote power ON input (12 V 50 mA) and the Wiener interlock input (accepting + 5 Volt, 10 mA) . In this way the HMPID HV-LV can be switched OFF at the same time. For the Cooling system, although not yet defined, a similar normally open relay (?) could be released in case of cooling failure. Will the DSS and CSAM interlocks signal be provided with the same logic? The HMPID DCS, in addition to the internal interlocks, is also provided of software HV-LV corss-system Interlocks reacting in case of LV sector failure.



8

HMPID FEE/FERO configuration

Each configuration of the FE Electronics requires 7 Pedestal files and 7 threshold files (both ASCII files) for a total of 10 Mbyte/configuration.

HMPID DCS Remote access

A whish is to have the full DCS remote controlA must is at least the DCS monitoring.

Documents

15-16/3/04 DCS workshop G. De Cataldo, A,.Franco and A. Tauro 1 Answers from the HMPID to the ACC questions 1.Concerning global DCS overview drawing 2.Concerning