IS 2009-09-29 Quite revised.
IS 2012-03-19 TA's fast method at top, unnecessary details at network loss
What to do if TCS crashes
There are two types of TCS crashes that might occur, one where network contact
disappears (severe) and the control continues, and one where TCS goes into
Results in nothing beeing updated on the User Interface terminal, no
reaction to key strokes. The sequencer might complain about no response
from TCS. No updates on signals to hardware, especially critical if it
happens during a move at full speed. The alarm buzzer might also go on.
What to do:(takes 10 minutes)
Push TCS reset button.
On obssys: shutdownobssys alfosc (or the instrument used)
Wait for TCS to start, UT updates and is same as red display, <2 minutes
On TCS: show 1
Reset safety system
On TCS: pow-on y
On obssys: startobssys alfosc (or the instrument used)
On obssys: tcs.setup-tel-alfosc (or the instrument used)
Point to Your target and start observing again.
The TCS continues to work without contact with other systems but it can
be controlled from the UI. The sequencer should give error messages
about lost contact to TCS.
The network loss results in a number of messages about no connection with
servers for guide stars, temperatures, weather stations and data base,
seen on the error device terminal and as warning messages on the User Interface
If this was no TCS crash but a network failure in the service
building there should be no error messages about the data base
server or complaints from the sequencer.
No data is updated in the data base so file headers will not
get proper contents. No reaction to teloffsets and other
requests from sequencer.
Since no data in the data base is updated, finish the ongoing exposure.
Reboot TCS, see Reboot TCS