Service manual

Control modes
63
4
◆
Getting started with ROSA
◆
Control modes
Control modes The S
TELLAR
can be controlled in three different modes:
• Remote mode via ROSA/C
OPERNICUS
and RS-485
• Local mode via ROSA and RS-232Contact control mode
Remote mode If a S
TELLAR
is operated from a central control station with ROSA, the ROSA client
controls the S
TELLAR
via the C
OPERNICUS
server using the remote RS-485 connec-
tion. This is the primary connection to the ROSA management system and is used
during daily operation.
Note! IftheremoteROSAlogsofftheC
OPERNICUS
,theC
OPERNICUS
still
polls the S
TELLAR
. This means that when the ROSA logs on again it
will be able to display the messages from the S
TELLAR
in the ROSA
message view.
Local mode via ROSA The local RS-232 connector is used for local control of the S
TELLAR
by a ROSA sys-
tem. In local mode you have full control over the codec, but cannot manage several
S
TELLAR
decoders in a network. The local control using the RS-232 connection is
used for service and diagnostic purposes.
Caution! Avoid using ROSA on both the local and the remote port simultaneously.
Local mode via the
front panel display
The S
TELLAR
can be operated in local mode from the front panel display. For further
information,see Front panel operation, p. 35.
Contact control mode The contact control from the contact closure interface contains macros to be effectu-
ated on external command. The event of a contact closure is recorded in a message in
ROSA.