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SNS Alarm System Status
Curtis Dunn
Control System Suite/Eclipse Frameworks Workshop
EPICS Collaboration Meeting
June 12-16, 2006
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Alarm Annunciator
Written in Objective-C
Uses the EPICS Framework for Cocoa developed by Tom Pelaia
Runs 24/7 on a dedicated alarm station in the SNS Central Control Room
Designed to Operations Specifications
Monitors PV Status and Severity
Speaks customizable alarm messages
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Alarm Annunciator – Alarm Configuration
• Intended to monitor summary PV's
• Automatic save and load
• Dynamically discovers and displays hierarchies
• Current severity
indicated by text color
• Allows Silencing of Alarms
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Alarm Annunciator - History
Lists the most recent alarms and warnings
Color indicates alarm severity
Shows Alarm info: Timestamp PV Name Audible Message Status Severity
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Alarm Annunciator – Pronunciation Dictionary
• Adjust incorrect
pronunciations
– Example: Linac
• Understands Abbreviations
– SNS Systems, SubSystems,
Devices, Instances
– Other abbreviations: Avg, Sts, Temp, etc.
• Automatic save and load
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Alarm Annunciator – Main Display
• Designed to be visible from a distance
• Displays current alarms and warnings
• Scrolls the audible message
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006 7
Parallel Efforts at SNS - Soft-IOC-based Alarm Handler (Pam Gurd)
Focus: Integration of alarm system with EDM control screens
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Parallel Efforts at SNS – Alarm Pushing in EPICS (A. Liyu, A. Zhukov)
Current EPICS Alarm Model
IOC Alarm ClientCA
IOC
IOC
X channels
Y channels
Z channels
…X channelsY channelsZ channels
…
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Parallel Efforts at SNS – Alarm Pushing in EPICS (A. Liyu, A. Zhukov)
Another Alarm Model
IOC Alarm server
IOC
IOC
X channels
Y channels
Z channels
Alarm client
Log file
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Parallel Efforts at SNS – Alarm Pushing in EPICS (A. Liyu, A. Zhukov) Changes in RecGbl.c file recGblResetAlarms() function/* Send alarm message */
char AcMessage[200];
if( pdbc->nsev != pdbc->sevr){
sprintf( AcMessage,
"PVNAME=%s&SEVERITY=%d&STATUS=%d&TIMESTAMP=%ld.%ld",
pdbc->name, pdbc->nsev, pdbc->nsta, pdbc->time.secPastEpoch,
pdbc->time.nsec);
vFSendMessageToAlarmService( AcMessage);
}
Add Alarm service with APIepicsShareFunc int epicsShareAPI iFAlarmServiceStart( char * AcServerNameIn);
epicsShareFunc int epicsShareAPI iFAlarmServiceStop();
epicsShareFunc void epicsShareAPI vFSendMessageToAlarmService( char * AcMessage);
OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
EPICS Collaboration Meeting, June 12-16, 2006
Parallel Efforts at SNS – Alarm Logging
Alarm logging using the Alarm Handler (ALH) (Ernest Williams, Greg Lawson)
Importing Alarm Log Files to RDB – ROCS (Ekaterina Danilova, Ernest Williams)
