Download preliminary design review section 6 software control system

VST Project
Osservatorio Astronomico di Capodimonte Napoli
1. Acquisition of VLT Common Software and ESO TCS by VST software team.
2. Analysis, for each VST functional subsystem, of the admissibility and compatibility between the ESO and VST
software solution, based on their particular electro-mechanical and functional features.
3. In all the subsystems where it has been pointed out the complete compatibility between the two solutions, the
ESO software will be de facto re-used.
4. Whenever this compatibility is partial, a particular effort will be achieved in order to perform as much ESO
software re-use as possible. The software modules where changes are needed, will anyway follow the ESO
constrains, in terms of functionality and development.
5. Whenever there is a complete absence of compatibility, due to the evident functional and hardware diversity,
the VST team solution will follow the main ESO constrains, but it will be based on the particular
electromechanical requirements and strategies, already discussed and basically accepted during ESO and
VST team technical meetings.
It is therefore important to underline that the following TCS basic design requirements will be taken into account
by the VST Team:
‰
‰
‰
‰
‰
All the interfaces with the telescope will be based on the ESO standards.
All the active controls on the telescope will be handled at the LCU level, following ESO standards.
All the possible commands available to control the telescope actions will be based on ESO standards, in
terms of their name, meaning, syntax and behaviour, according to the corresponding commands already
implemented in the ESO TCS.
The organization of on-line database, logging system, error reporting, message system, scan system, will be
based to ESO standards, according the same implementation of ESO TCS.
The direct communication between LCUs will be denied and, when needed, it will be always achieved
through TCS WS. The only exception to this rule will be related to correction information coming from the
guiding system, that must be delivered to the other axis control LCUs in real time, in order to respect the
control loops timing.
Via Moiariello 16, 80131 Napoli Italy
Tel. 081 5575111 Fax 081 456710
16