1. EPICS and CLS
September 18, 2009

2. Controls Environment Common Target Processors
Intel x86 (RH 7.2 for VME apps, SL 4.x for OPI)
Mxscaleb (Moxa 7408, 8 serial processors, Linux)
Motorola MHz (EROC)

3. Controls Environment Operating Systems Linux Red Hat 7.2
Scientific Linux 4.X
Moxa Embedded Linux
RTEMS (Motorola 68xxx and Intel x86)
Windows XP with Cygwin

4. Common Tools Less Common: EPICS edm matlab
gtk+ based library (no longer supported)
Qt+EPICS widget library
Less Common:
Root
Python
spec

5. Development See 7.1.39.1 rev ??? Using css2400-103 for development
makeBaseApp.pl –t ioc myproject
makeBaseApp.pl –i –t ioc iocname
Development Details

6. Deployment /iocApps/SYSTEM/IOCNAME/APPNAME
/iocApps/SYSTEM/APPNAME (symbolic link)
/etc/init.d startup script
SYSTEM – e.g. 06B1_1_SXRMB_BL
IOCNAME – e.g. IOC
APPNAME – e.g. Motors
In general the bin, db, dbd, and iocBoot directories are installed with required files

7. Deployment - libraries
use $EPICS_LOCAL/drivers when installing
Library_name
Library_version
lib
Linux-x86
libNAME.a
libNAME.so.X.Y
libNAME.so.X.Y.Z
libNAME.so
include
NAME.h

8. Deployment - libraries
Screens
NAME.tpl
OPI
NAME.tpl
templates
NAME.tpl
NAME.db
NAME_morestuff.db
dbd
NAME.dbd

9. Deployment - OPI
/home/control – for Linac/BR1/SR1 operation (beware of DEVELOPMENT vs. PRODUCTION)
/home/beamline – for common beamline applications and libraries
/home/hxma (e.g.) – for applications specific to the given beamline

10. Documentation!
Documentation Procedure – \\canopus\common\Library_and_Reference\Document_Control
Also available from under “Documents -> Approved Documents”
Wiki (

11. What is EPICS?
EPICS Overview

12. What is Channel Access?
Channel Access is the Software Bus for EPICS Application communication
Channel Access

13. Records and Fields
Records are common definitions of a collection of fields. New record types are rarely developed at the CLS
In the simplest case, a Field is the minimum Channel Access data communicated
Device drivers are designed to process a record when a field updates (output) or when hardware values have been read (input)

14. Record Processing
Records, Devices, and Drivers
Databases, Part 1

15. Record Types
Databases, Part 2