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SW Test Plan: Switch LI20-LI30 CAMAC to EPICS

1. Description/Purpose: After the LCLS accelerator has been turned on and
checked out using the SLC control system, we would like to begin switching the
sectors back to EPICS control to test and if all goes well, leave them in EPICS
control.

We would like to do this in 3 installments:

A. Switch over one sector whose klystrons are active on the beam, preferrably
near the end of the Linac. 2 hours

B. If A goes well, 1-2 days later, switch over LI20, LI26-LI30. 4 hours

C. If B goes well, 2 or more days later, switch over remaining sectors. 3 hours

2. Systems Affected: SCP Control of Sectors 20-30 Klystrons and other CAMAC
devices

3. Beam Required: Yes, and klystrons active on the beam

4. Invasive: Yes

5. Test time needed: 9 hours distributed over 3 separate days

6. Dependencies: None

7. When: Week of May 16 or later

8. Test plan:(Pre-test) save SCP configs to restore afer test is complete.

a. switch from SCP MICRO to EPICS IOC Control for LI20-LI30

b. Configure gateway so that LI20-LI30 PVs are not being served by SLC.

c. Boot ioc-li**-cv01 (switch away from alternate ports)

Boot sioc-li**-ky00 with test version, set initial conditions

Switch LI20-LI30 AIDA klystron service to EPICS

Update configs and restart CAMAC Channel Watcher

Save SCP 2-24 and 21-30 timing configs for beamcode 1 and run script to copy
data to EPICS

d. If testing in LI20, HSTA OFF LI20 PDU 3 and 4, then reboot LI20 micro

e. Test!

10. Backout plan:

a. For each sector, go to lclshome > LI**/Network > More CAMAC... >
Switch to SCP Control

Detailed description of switching to SCP control:

  • Switch back to SCP control using remote switch (and later flip local switch
    to MBCD mode).
  • Stop ioc-li**-cv01 (switch back to alternate ports)

Leave sioc-sys0-cv01, sioc-sys0-cv02, sioc-sys0-cv03 running.

Boot sioc-li**-ky00 with non-test version

  • Reconfigure gateway so that LI** PVs are again served by SLC.
  • Verify that PDUs are working from SCP control, may need to reset PDUs from
    SCP reboot LI** micro. IPL all LI** PIOPs from SCP.
  • Verify that SCP control is restored and status is reading properly from EPICS
    controls.
  • Restart klystron CUD matlab process
  • Set AIDA klystron service to SLC mode
  • If backing out in LI20, HSTA ON LI20 PDU 3 and 4, then reboot LI20 micro
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