The POINTING micro

It may be necessary to log on the POINTING micro for checks in case of anomalous behaviour.

The normal state can be check by typing procs -e to check the running processes. It should say:

ant51_s: procs -e
 Id PId Grp.Usr  Prior  MemSiz Sig S    CPU Time   Age Module & I/O
  2   0   0.0     128    4.75k   0 w        0.00 159:19 sysgo <>>>term
  3   0   0.0     128    2.00k   0 s    37:20.78 159:19 ifman
  4   0   0.0     128   20.25k   0 s     2:32.27 159:19 routed <>>>nil
  5   0   0.0     128    2.00k   0 a     2:17.03 159:19 sockman
  6   2   0.0     128    6.75k   0 w        0.00 159:19 shell <>>>term
  7   6   0.0     128    6.75k   0 w        0.13 159:19 shell <dd >>>term
  8   0   0.0     128   62.75k   0 e       29.00 159:19 nfsc <>>>term
  9   7   0.0     128   12.00k   0 e        0.01 159:19 ftpd <>>>nil
 10   7   0.0     128   12.00k   0 e        0.44 159:19 telnetd <>>>nil
 11   7   0.0     128   15.50k   0 s        0.03 159:19 tsmon <>>>term
 12  13   2.2     128    6.75k   0 e        0.16 75:15 shell <>>>pks00
 13   0   0.0     128   22.00k   0 e        0.25 75:15 telnetdc <pks00
 14   0   0.0     128   11.25k   0 e        1.53 159:19 rmshd <dd >pipe >>nil
 15   0   0.0     128    9.50k   0 e 10:37:06.41 159:19 ev_it1s <dd >>>nil
 16   0   0.0     128   11.25k   0 e       26.77 159:19 ev_itsync <dd >>>term
 17   0   0.0     128   11.25k   0 e        0.02 159:19 ev_itincr <dd >>>term
 18   0   0.0     128   11.25k   0 e  1:27:55.70 159:19 tcpip <dd >>>nil
 19   0   0.0     128   11.25k   0 s  1:25:13.52 159:19 subxmit <>>>nil
 20  21   0.0     128    6.75k   0 w        0.18  0:00 shell <>>>pks01
 21   0   0.0     128   22.00k   0 a        0.18  0:00 telnetdc <pks01
 22  20   0.0     128   18.25k   0 *        0.36  0:00 procs <>>>pks01

Programs ev_it1s, ev_itsync, ev_itincr (the time keepers), tcpip (which handles communications with BURE1), subxmit (which communicates with the RECEIVER micro program subrecv to control the subreflector), and rmshd (which support the rmsh commands from BURE1) should all be active.

Program user can display all the status bits of the antenna. Program UT displays the running UT and LST times. Program set_time can be used to re-synchronize the micro and reset the UT time. LST will become good again only after a command has been send by BURE1. Program incr can be used to re-initialize the encoders/subreflector. Program dmp dumps the antenna common.

Synchronisation problems may require to have a look at the ``history'' of the synchro errors. They are logged in files named sync.ant11, sync.ant21, etc.... These files should be small. To check their size, use:

ant51_s: chd /dd/ANTENNA
ant51_s: dir -e sync.*
 Owner    Last modified  Attributes Sector Bytecount Name
-------   -------------  ---------- ------ --------- ----
  0.0     96/07/16 0314   ------wr    1B51       150 sync.ant11
  0.0     96/07/16 0230   ------wr    1B50       125 sync.ant31
  0.0     96/07/16 0230   ------wr    1BC0        50 sync.ant41
  0.0     96/07/16 0230   ------wr    1B52        50 sync.ant51

The size (Bytecount) should be less than about 2000 bytes. Otherwise, too many timing errors have appeared: check the TU01 time bus. The sync.ant$i1$ files contain the date and time of the error:

ant51_s: list sync.11
Tue Jul 16 09:31:42 1996
Tue Jul 16 09:31:43 1996
Tue Jul 16 10:15:27 1996
Tue Jul 16 10:15:35 1996
Tue Jul 16 10:15:41 1996
Tue Jul 16 10:15:47 1996

If the file size keep increasing, the antenna are no longer properly synchronized. Use command set_time to re-synchronize them and reset the UT time. If the files get too large (Bytecount $> 10000$), delete them using command

ant51_s: del sync.ant*