Simrad PSIMP-D1 datagram format
Simrad PSIMP-D1 is a proprietary datagram format created by Kongsberg Maritime to provide the type and configuration of PS, PI and PX sensors used by a Simrad catch monitoring system.
Format
$PSIMP,D1,tt,dd,M,U,SNo,MNo,C,V,CR,Q,In,SL,NL,G,Cb,error*chksum<CR><LF>
Description
Note
This datagram format replaces the PSIMP-D format.
This datagram description is not complete. If you need further information, contact Kongsberg Maritime.
1 PSTalker identifier
2 IMPDatagram identifier
3 D1Sentence specifier
4 ttTime
5 ddDate
6 M: Type of measurement
•  D: Depth
•  T: Temperature
•  C: Catch
•  B: Bottom
•  N: No sensor
•  M: Marker
7 U: Unit, always in SI units
M: Depth measurements
C: Temperature measurements
8 SNo: Sensor number
9 MNo: Measurement number
10 C: Channel
The number (1 to 30) of the communication channel for the current data source
11 V: Value
The magnitude of the current sensor measurement
12 Cr: Change rate
The magnitude of the current depth or temperature measurement
13 Q: Quality
•  0: No connection between the sensor and the receiver
•  1: One or two telemetry pulses are lost, current value is predicted.
•  2: The current data value is reliable.
14 In: Interference
•  0: No interference
•  1: Interference is detected
15 SL: Signal level
The signal level of the telemetry pulse measured in dB // 1 µPa.
16 NL: Noise level
The average noise level of the current channel measured in dB // 1 µPa.
17 G: current gain, 0, 20 or 40 dB
18 Cb: Cable quality
•  0: Cable is not connected.
•  1: Cable is OK.
•  2: A short circuit, or the hydrophone current is too large.
19 error: Error detected
0 when no error is detected. A number greater than 0 indicates an error condition.
20 chksum: Checksum
The checksum field consists of a "*" and two hex digits representing the exclusive OR of all characters between, but not including, the "$" and "*" characters.