Diamond Vacuum System

1
Diamond Vacuum System

• Steve Singleton
• 18th June 2003

2
Introduction

• Prototype subsystem for controls
• Evaluation - Vacuum Test Stand
• Valve Control Crate
• EPICS Database
• Human-Computer Interface

3
Vacuum Test Stand - Controllers

• MKS937A - Multi-sensor Vacuum Gauge System
• Balzer TPG300 Vacuum Gauge Controller
• Varian Dual Ion Pump Controller
• Digitel MPC Ion Pump Controller
• Mitsubishi A Series PLC - Valve Control
• Also - Varian Titanium Sublimation Pump
  Controller
• (work in hand)
• All devices use RS232 serial Interface

4
Vacuum Test Stand - IOC

• VME 64X Crate
• MVME167 (M68K) or PPC604 (Power PC) processor
  card
• (work on 68k now discontinued)
• IP Carriers - Hytec VICB8002
• - Greenspring VIPC601
• Serial Interface modules - Greenspring IPOctal
• -
  Hytec 8515

5
Vacuum Test Stand - Serial Devices

• devAscii (Allan Honey, Jeff Hill - Keck)
• We implemented MKS937A support.
• StreamDevice (Dirk Zimoch, DELTA)
• We implemented various support for various
  devices.
• MPF (Marty Kraimer, APS)
• Existing driver support for Digitel MPC Ion Pump
  Controller
• We extended it to drive a Varian Dual Ion Pump
  Controller
• ornlSerial (John Sinclair, Oak Ridge)
• We implemented a plug-in for MKS937A
• Also extended record support to cover standard
  EPICS ai and ao modules

6
Vacuum Test Stand - Serial Devices

• Conclusions
• All devices work with no more than minor problems
• Where existing support exists we will use it
• For new development
• use StreamDevice for straightforward cases
• use ornlSerial for complex protocols / checksums

7
Vacuum Valve Control Crate

• Object - all other vacuum equipment handled by a
  gauge or pump controller
• Maintains control across restart of IOC
• Need same facility for valves, absorbers
• Use a PLC
• Provides interlocks
• Pressures
• Water flow switches

8
Vacuum Valve Control Crate

• Current preference - Allen Bradley Compact Logix
• Allen Bradley serial interface
• DF1 Protocol (Alan Honey)

9
Vacuum Valve Control Crate
10
Vacuum Valve Control Crate
11
Vacuum Valve Control Crate
12
EPICS Database

• Instrument Counts

13
EPICS Database

• Block diagram for Vacuum System for one arc of
  storage ring.
• Rack diagram layout

14
EPICS Database
15
EPICS Database
16
EPICS Database

• Equipment choice - not finalised
• For test database assume
• MKS937A Vacuum Gauge Controller
• Digitel MPC Ion Pump Controller
• Allen Bradley Compact Logix PLC - Valve Control
• Varian TSP controller

17
EPICS Database

• Set up substitution files
• Template files already exist from test stand
• Expand database on host, download expanded files
• Use expanded files to populate relational
  database.
• Work clarified our ideas on project directory
  structure.
• Alternative set of template files - provide soft
  records and simulation

18
Vacuum HCI

• Use EDM to build screens
• - Find limitations
• - Need to add records in database - calculations,
  waveform records for plot etc.
• (not a problem for vacuum system but may be for
  more complicated systems)
• Plans to try other approaches
• - Java, Abeans
• - Scripting languages
• - etc.

19
Vacuum HCI
20
Vacuum HCI
21
Vacuum HCI
22
Diamond Vacuum System

• THE END