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Note
This telegram format is no longer in use. It has been replaced by PSIMP-D1. The
description is not complete. For further information, contact Simrad.
Format
$PSIMP,D,tt,dd,M,U,S,C,V,Cr,Q,In,SL,NL,G,
Cb,error*chksum<CR><LF>
Format description
1
= Talker identifier (mandatory)
PS
2
= Telegram identifier
IMP
3
= Sentence specifier
D
4
= Time of day
tt
5
= Current date
dd
6
= Measurement type:
M
• D = Depth
• T = Temperature
• C = Catch
• B = Bottom
• N = No sensor
• M = Marker
= unit; M, f or F for depth measurements, C or F for temperature measurements
7
U
= source; number (1, 2 or 3) of the sensor providing the current data values
8
S
= channel; the number (1 to 30) of the communication channel for the current
9
C
data source
10
= value; the magnitude of the current sensor measurement
V
11
= change rate; the magnitude of the current depth or temperature measurement
Cr
12
= quality:
Q
• 0 = No connection between the sensor and the receiver
• 1 = One or two telemetry pulses are lost, current value is predicted
• 2 = The current data value is reliable
13
= interference:
In
• 0 = No interference
• 1 = Interference detected
14
= signal level – the signal level of the telemetry pulse, measured in dB // 1 µPa
SL
15
= noise level – the average noise level of the current channel, measured in dB
NL
// 1 µPa
= the current gain; 0, 20 or 40 dB.
16
G
= cable quality:
17
Cb
351718/C
Telegram formats
261
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