User manual

MEX ASPERA-3
Ref.:
ME-ASP-MA-0002
Issue:
Issue 1 Rev. 4
Date:
15/2/2002
Page:
Page 21 of 58
ASPERA-3 EGSE User Manual
IFSI
CNR
3 Operations
The ASPERA EGSE functionalities are very similar at both Instrument Level Test (ILT) and System
Level Test (SLT). The functionalities consist essentially in sending single commands, commands
sequences and receiving telemetry.
The telemetry received may be selectively shown in tabular form, interpreted and shown in appropriate
windows (housekeeping), interpreted and used in command sequences. All the communications in/out
with the program may be archived on HD for playback or for higher level interpretation and display
done by the Science Display Module (SDM) on a different computer.
The paragraphs 3.1 describes in detail the operation at ILT, only the difference at SLT will be described
in paragraph 3.2.
3.1 Instrument Level Test Operations
3.1.1 Program setup
The SCOE programs used at ILT are scoe and mexilt. Both programs must be executed manually or via
the aspera script procedure. Links to the programs are in /Mex directory. For program configuration
see paragraph 2.4.
3.1.2 SCOE interface
The main EGSE interface is the scoe program. The program consists of an editor-like window used to
compose, edit and send commands to ASPERA via mexilt and S/C sim.
Each line in the editor window is a single case-insensitive command or a comment (beginning with ‘#’
or ‘;’ character). Text after ‘#’ or ‘;’ characters is ignored.
The text present on the window may be stored/retrieved to/from a file.
Commands lines can be sent one by one, or as a sequence at a defined time interval.
The following function-keys have a special meaning in the editor window:
• The F9 (or Ctrl-Return) key sends to mexilt the current (where the cursor is) command line or
the block of lines selected with the mouse.
• The F11 key sends to mexilt the current command line and moves the cursor to the next line,
empty and comment lines are ignored.
• The F10 key sends to mexilt all the commands from the current line as a procedure (see the
following “commands sequences” paragraph).
The figure shows the scoe main window with the set of initialisation commands executed automatically
at startup