Bathy-500
ID #1032
The Echosounder and Transducer are working, but no data are output to computer. We have checked all the cables, everything is ok. Do you know what can cause this problem? Have you seen this problem before? Do you have any suggestions?
Most of these types of problems are due to either Bathy-500 settings, computer settings, or cable problems.
The Bathy-500 settings are set via the COM button. You select it once to set your BAUD rate (9600 or 4800) then select it again to set your output string (NMEA dbt etc). Your computer needs to have the COM port selected to match the BAUD rate and should be set for N (no parity) 8 (# of start bits) and 1 (# of stop bits). You didn't mention if you were trying to read with Survey software (Hypack/Hydropro etc) or just with terminal software such as hyperterminal. If having problems I would always try using Hyperteminal.
The cable also needs to be correct. You say it was checked, but not how you checked it. What you need is a cable where one end is a 25-pin D type connector to plug into the bathy-500 25-pin Data I/O connector and the other end would typically be a 9-pin D type connector to plug into the computer. Only 3 pins on each connector are used. Wiring is as follows:
25-pin pin 2 to 9-pin pin 2, 25-pin pin 3 to 9-pin pin 3, 25-pin pin 7 to 9-pin pin 5. That's it. Be advised that most off-the-shelf 25 pin to 9 pin cables are of a type called Null Modem where pins 2 and 3 are reversed. If so, simply use a 9-pin to 9-pin Null Modem adapter on the 9-pin end to reverse them back.
Also, if you open the unit and lift the chart mechanism assembly you will see the Data I/O board and there are two jumpers (shunts). You need to verify that there is a shunt on only the RS-232 pins and not one on the RS-422 pins.
That should cover everything.
Last update: 2009-10-28 19:03
Author: admin
Revision: 1.0
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