April, 2005 EPICS Collaboration Controls Group Alarm Management at Jefferson Lab A New Configuration and Extended Capabilities B. Bevins, M. Joyce, J. Sage

Controls Group April, 2005 EPICS Collaboration Outline  New Requirements  ALH Usage  ALH Modifications  CDEV Modifications  Other Development  Status

Controls Group April, 2005 EPICS Collaboration New Requirements  Motivated by a new control room design  Global acknowledgement  Global disabling  Smarter automatic disabling  Centralized logging  Geographical view of accelerator  Make alarms “more meaningful”  Motivated by maintainability  Automatic generation of configuration files  Separate configs for operators and experts

Controls Group April, 2005 EPICS Collaboration Old Control Room

Controls Group April, 2005 EPICS Collaboration New Control Room

Controls Group April, 2005 EPICS Collaboration Changes to ALH Usage  Thorough review of alarm parameters  Removed extraneous alarms  Determined where to ignore transients and of what duration  Readable alias names used throughout  Use ALH in global mode  Master copy manages alarm logic  Operators open copies to acknowledge  Logs to CMLOG  FORCEPV’s to disable (automatic and manual)  SEVRPV’s to summarize alarm state in MEDM

Controls Group April, 2005 EPICS Collaboration ALH Modifications  Uses CDEV transparently  Wasn’t quite working before  Uses CHANNEL keyword rather than CDEV keyword  Also works for FORCEPV, SEVRPV, etc.  Unacknowledged Severity PV’s  New keyword UASEVRPV works like SEVRPV  Disabling a group/channel updates parent group severity PV’s (both types)

Controls Group April, 2005 EPICS Collaboration Why CDEV?  Legacy: high level RF system diagnostics calculated in CDEV-based RF Alarm Server  Allows alarms on other CDEV-based high level beam applications servers  Slow locks, real-time optics model, etc.  Alarm states can now be monitored and acknowledged directly from Tcl-CDEV applications.

Controls Group April, 2005 EPICS Collaboration CDEV Modifications  CA Service Enhancements  Supports ack and ackt messages  Allows unAckSevr and ackTrans tags (along with severity, status, etc.)  Allows correct canceling of monitor requests Now matches the documentation Prevents buffered callbacks from being delivered after a monitor has been canceled

Controls Group April, 2005 EPICS Collaboration Other Development  makeALHConfig - Perl scripts to generate config files and sponsor FORCEPV and SEVRPV soft channels on a Proxy IOC (PIOC)  15,372 alarms  11,463 PV’s on PIOC  alhDisable - Tcl program to manage FORCEPV’s and manually disable alarms  Generates reports of all currently disabled alarms for shift changes, etc.  Makes an entry in the Logbook.

Controls Group April, 2005 EPICS Collaboration Alarm Summary Screen

Controls Group April, 2005 EPICS Collaboration Alarm Disable Tool

Controls Group April, 2005 EPICS Collaboration Status  New automatically-generated configuration has been in use for several months.  Vast improvement: alarms are no longer silenced and ignored.  Global alarm management is being tested and should be fully deployed in May.  Modified CDEV will be released soon after through the CDEV website  ALH changes will be submitted for inclusion in new releases.

April, 2005 EPICS Collaboration Controls Group Alarm Management at Jefferson Lab A New Configuration and Extended Capabilities B. Bevins, M. Joyce, J. Sage