"Phil Stanton" wrote in message
...
Hi Jack

There doesn't seem to be a way of specifically setting the ST60 to output
in
RS-232 serial mode. In addition to the SeaTalk connections on the back of
the instrument there are 2 pairs of connections marked NMEA Out and NMEA
In.
In addition there is a setting on the instrument for "NMEA Output ON". It
all sounds terribly logical..
Have contacted RayMarine and wait their opinion.

Thanks

Phil

"Jack Erbes" wrote in message
...
Phil Stanton wrote:
Sorry for delay in replying. Couldn't check it out till the weekend.
Bags
of input from a GPS to the HyperTerminal, but nothing from the ST60
Multi. I think it could be faulty

Thanks for steering me towards the HyperTerminal. I had never heard of
it.


You're welcome. Its been a freebie with Windows as long as I can
remember, great to use as a console for talking to various devices like
switches and routers, good for testing modems, and trouble shooting some
other devices.

As an added note, someone on another group pointed out to me that
Hyperterminal will not always work as I described it. It will work for
receive only connections but if the sending device expects that there
will
two way communications it will not or may not work. I'm not that smart
about RS-232 communications and can't further explain that but it sounds
reasonable to me. Nothing else in Windows is guaranteed to always work,
why should that? :)

But it has been a good trouble shooting tool for me in checking out GPS
to
PC connections.

Do you know that your ST-60 is communicating in a RS-232 serial mode? If
that is a SeaTalk instrument or in that mode, it won't work because that
is Raymarine's proprietary flavor of RS-232 or something like that.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)


Hi,
I was under the impression that the whole exercise was to determine if the
ST60 Multi instrument would display a negative depth if received in a NMEA
depth sentence.
For this test, you want to connect the Transmit line of the PC Com port to
NMEA IN. Connect your PC Com port pins 3 and 5 to NMEA IN + and NMEA IN -
and transmit a $SDDBT sentence from Hyperterminal to the ST60 Multi
instrument.
Start Windows program Notebook and type the following NMEA sentence:
$SDDBT,-2.0,f,,,,*22 Press Enter and save this text in a file. The
value -2.0 represents a "negative" depth of 2.0 feet.
Start Hyperterminal with the PC connected to the ST60 instrument as
described above. Click on Transfer at the top of the Hyperterminal screen
and select "Send Text File". Find the .txt file you saved with Notebook and
transmit. Repeat this a few times and it will become clear if the ST60 Multi
is willing to display a negative value. Try a positive depth first to check
if you've got the connections right, e.g. $SDDBT,3.0,f,0.9,M,0.5,F*09

Wout