B&G Hydra 2000, User Manual

Page: 121 / 147

Hydra 2000 User Manual
Part 6 - Diagnostic Data
HB-0844-02
6-5
Note
When the system is reset all calibration, damping and alarm
values will be set back to default settings, all log values and trip
functions will be reset to zero. All display units will reset to their
default page settings. After a delay of about 20 seconds the
system should be switched OFF and then back ON twice to
complete the reset procedure.
6.1.11 Versions
This option allows the user to obtain the software version numbers
for the FFD (DISPLAY), Depth board (DEPTH), Wind board
(WIND), Expansion Unit (EXP UNIT) and Pilot, if fitted. With
'VERSIONS' flashing on the display, press
Enter . Then use the
Scroll Up Key to select the option whose version number is
required and press Enter to display the software checksum of the
appropriate unit, in the bottom display. The last two digits of the
checksum are the software version number.
6.1.12 Errors
This test is used chiefly to interrogate the Hydra 2000 network and
is designed mainly for use by service technicians to ascertain
levels of interference that may be present. For example inter-
ference may be induced by an SSB transmitter or radar. The
display shows the number of messages that have not been
transmitted correctly first time. Between 10 and 20 errors per
minute is quite normal. A higher number of errors can also be an
indication that the network terminators are not correctly fitted.
6.1.13 Remote
This facility allows the user to invoke internal RAM, PROM and
basic network checks on any remote processor node on the
network, and display the appropriate error messages on the FFD.
Node numbers are allocated when the system is switched ON for
the first time or after a system reset.
In the Hydra 2000 System the numbers will be:
Depth board 1
Wind board
5
In a system with additional processor nodes it may be necessary
to determine the individual node numbers by disconnecting nodes
in turn and running the remote PROM test. If no pass or fail