Valeport uvSVX - Data String #1; Modbus RTU

uvSVX and uvSVXe Operating Manual: MANUAL-857569191-11 | issue 1.7
Page | 25
© 2021 – Valeport Ltd
6.6 Data String #1
A dual output string for a specific requirement
Command:
#082;7
Format:
xxxx.xxx ccccccc
$PSGDS,ADSVP,xxxx.xxx,cccc.ccc,tt.tttt,dddd.dd*zz
Notes:
First String:
Field
Format
Pressure / Depth (d | M | f)
xxxx.xxx
Speed of Sound
ccccccc
Second String:
Field
Format
NMEA Header
$XXXXX,XXXXX
Pressure / Depth (d | M | f)
xxxx.xxx
Speed of Sound (ms
-1
)
xxxx.xxx
Temperature (°C)
xx.xxx
Density (kg/m3)
xxxx.xxx
Output String Examples
0009.919 1505340
$PSGDS,ADSVP,0009.919,1505.340,21.972,1130.56*1D
0009.830 1504058
$PSGDS,ADSVP,0009.830,1504.058,21.959,1130.80*19
0009.829 1504131
$PSGDS,ADSVP,0009.829,1504.131,21.964,1130.85*14
6.7 Modbus RTU
Modbus RTU as implemented in the uvSVX is an industry standard interface protocol that will run
over RS232 or RS485.
The Baud rate is variable 4800 to 19200 with 8N1 or 8E1 framing.
This conforms to the minimum requirements of the MODBUS standard of 9600 and 19200 baud
with 8E1 framing.
Full set up and operation through Modbus is outside the scope of this document, please contact
Valeport for further details.