1. ICS – Software Engineering Group 1 IOC Operations at SNS Carl Lionberger

2. ICS – Software Engineering Group 2 IOC Ops issues Initialization of PV’s Status Reports Remote rebooting Non-vxWorks IOC’s

3. ICS – Software Engineering Group 3 Initialization of PV’s

4. ICS – Software Engineering Group 4 Some PV Init Cases VME DAC (With RB) VME DAC (NO RB) FB DAC (NO RB) FB DAC (RB) Soft Chan Soft Reloadrbasr rbasr Power Fail, Crate Only asr rbasr Power Fail, Total asr CPU down, Short time rbasr rbasr Cold StartDb/msr Asr = autoSaveRestoremsr = manual save/restore Rb = readbackdb = init values in epics database

5. ICS – Software Engineering Group 5 PV init observations It would be nice to be able to tell ioc to do cold start boot –This would be easy to implement IOC can also declare cold-start if neither readback or saved value available. –This could be on record-by-record basis, depending on system interconnectedness –Difficulty telling if readback and save sets valid

6. ICS – Software Engineering Group 6 PV init observations 2 It would be nice if ioc’s could determine when readback is valid –This is difficult and seldom done –Example that works: PLC5 record Only EPICS writes setpoints EPICS writes checksum Can look at them at boot time PLC always skeptical –power-up bits may tell enough in some cases Only IOC resets pu bit and Only IOC writes setpoints

7. ICS – Software Engineering Group 7 Status Reports vxStats –New signals being added continuously –Read anywhere Utility board – temperature, voltages Ping checks Network terminal servers for console logins

8. ICS – Software Engineering Group 8 Remote Reboots If EPICS is up, can be done through vxStats If VME not too bad, can be done through utility board (sysreset) We have remote-operated power controls, but no remote crate controls Plan to have one screen that can do all three Console login will stay manual

9. ICS – Software Engineering Group 9 Non-vxWorks IOC’s Non-vxWorks dependent vxStats package needed We still haven’t gotten non-vxWorks- dependent asr working We are dropping xcas and cas in favor of iocCore Many use labview—various interface schemes used

10. ICS – Software Engineering Group 10 Conclusion It may be useful to categorize things as “IOC Operations” Lots of work in going to non-vxWorks iocs