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WHT Alpha TCS

Software Group's page of TCS Alpha documentation

As from TCS version W17-1-0, both DecNET and DRAMA communication channels are initiated when starting up the TCS.

From LPAS4:

  • On TO term, open up a telnet window and connect to LPAS4
  • Login as WHT_LOGIN and type START at the menu option
  • This pops up two windows, the TCS Display and the TCS user interface window. The original window destroys itself.
Focal Stations

The valid focal-station names are:
CASSEGRAIN Cassegrain focus
PRIME Prime focus
GHRIL_ROT GHRIL Nasmyth focus with mechanical derotation
GHRIL_IRDEROT GHRIL Nasmyth focus with optical derotation (IR)
GHRIL_OPTDEROT GHRIL Nasmyth focus with optical derotation
GHRIL_NOROT GHRIL Nasmyth focus with no field rotation
GRACE_ROT GRACE Nasmyth focus with mechanical derotation
GRACE_IRDEROT GRACE Nasmyth focus with optical derotation (IR)
GRACE_NOROT GRACE Nasmyth focus with no field rotation

Autoguider

The autoguider still is on the serial port...
  • From TO terminal launcher window, connect to serial port 1
  • Choose cass, ghril, etc ..
Analysis of Encoder data

  • log on LPAS4
  • USERNAME: genuser
  • PWD: ***********
  • Option> PLOT
  • PLOT> CD DISK$LOGS:[WHT.DATA.ENCODER]
  • PLOT> DATA ENC021030.DAT;5 (or whatever file it is)
  • PLOT> READ 1 UTC
  • PLOT> READ 2 AZIMUTH POSERROR (any parameter you like ploting on this data file)
  • PLOT> DEVICE XWINDOW
  • PLOT> LIMITS
  • PLOT> BOX 15 20 -0.3 0.3 (or any suitable data range)
  • PLOT> PLOT
Tape Encoders

With zeroset absolute.
  • USER> ENCODER ON AZIMUTH TAPE1
  • USER> ENCODER ON AZIMUTH TAPE2
  • USER> ENCODER ON AZIMUTH TAPE3
  • USER> ENCODER ON AZIMUTH TAPE4
  • USER> ENCODER OFF AZIMUTH GEAR
To revert back:
  • USER> ENCODER OFF AZIMUTH TAPE1
  • USER> ENCODER OFF AZIMUTH TAPE2
  • USER> ENCODER OFF AZIMUTH TAPE3
  • USER> ENCODER OFF AZIMUTH TAPE4
  • USER> ENCODER ON AZIMUTH GEAR

-------- © 2004 Isaac Newton Group of Telescopes --------
Last Updated: 21 Dec. 2004 Juan Carlos Guerra jcg@ing.iac.es




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Last modified: 18 December 2010