Simrad PSIMP,D datagram format
Simrad PSIMP ,D is a proprietary datagram format created by Kongsberg Maritime to provide the type and configuration of PS and PI sensors used by a Simrad catch monitoring system.
Format
$PSIMP,D,tt,dd,M,U,S,C,V,Cr,Q,In,SL,NL,G,Cb,error*chksum<CR><LF>
Description
Note
This datagram description is not complete. For more information, contact Kongsberg Maritime.
1 PS: Talker identifier
2 IMP: Datagram identifier
3 D: Sentence specifier
4 tt: Time
5 dd: Date
6 M: Type of measurement
•  D = Depth
•  T = Temperature
•  C = Catch
•  B = Bottom
•  N = No sensor
•  M = Marker
7 U: Unit of measurement
•  M = Depth measurements (metres)
•  f = Depth measurements (feet)
•  F = Depth measurements (fathoms)
•  C = Temperature measurements (Celsius)
•  F = Temperature measurements (Fahrenheit)
8 S: Sensor number (1, 2, 3)
9 C: Channel (This is the number of the communication channel for the current data source. (1 ‑ 30))
10 V: Value (This is the magnitude of the measurement made by the sensor.)
11 Cr: Change rate
12 Q: Quality
•  0 = There is no connection between the sensor and the receiver.
•  1 = One or two telemetry pulses are lost. The measured value is predicted.
•  2 = The measured data is reliable.
13 In: Interference
•  0 = Interference is not detected.
•  1 = Interference is detected.
14 SL: Signal level (dB // 1 µPa)
15 NL: Noise level (dB // 1 µPa)
16 G: Gain (0, 20 or 40 dB)
17 Cb: Cable quality
•  0 = The cable is not connected.
•  1 = The cable is in good working order.
•  2 = The cable is short-circuited, or the hydrophone current is too large.
18 error: Error (0 means that no errors ares detected. Any other value indicates an error condition.)
19 chksum: Checksum (The checksum field consists of a "*" and two hex digits representing the exclusive OR of all characters between, but not including, the "$" and "*" characters.)
Note
This datagram format is obsolete. It is no longer in use on new designs. It has been replaced by datagram PSIMP ,D1.