iXBlue GAPS - 4.4 Configuring Input and Output Parameters

GAPS - User Guide
4.4 Configuring the Input and Output Parameters
This section describes the configuration of the communication between GAPS and the
external sensors. These parameters are divided in input (4.4.1) and output parameters (4.4.2).
The parameters are in the INPUTS and OUTPUTS items of INSTALLATION menu.
4.4.1 CONFIGURING THE INPUTS
The following inputs (Position , UTC , Pressure, Telemetry and Hoisting System ) are
configured here:
Position
Position data input comprises position, time and date. GPS is plugged directly to the GAPS
antenna or to the BOX. The GPS antenna broadcasts data on Ethernet or serial link.
GPSlever arms are input in the User Interface or in a navigation software but not in both!
UTC
External sensors delivering UTC are connected to a serial plug or via the Ethernet network.
Pressure
Pressure data input allows the computation of immersion (see Appendix H.2). Pressure
comes from a pressure sensor installed on the underwater vehicle or is broadcasted on an
Ethernet or serial link. A pressure offset can be added to the incoming data.
Telemetry
Under Telemetry, set the identical configuration than in the equipment that output the
telemetry datagram. Only one protocol ITSTELEMETRY is available.
Hoisting Sys.
State of the hoisting system is displayed as antenna status in the CONTROL menu.
4.4.1.1 Input Stream Parameters
Below, you find the various parameters that you have to set up:
● Input: Choose the Port among the Serial A, B, C, D and Ethernet A, B, C, D ports.
Select Embedded (for Position and UTC) if you use the iXblue GPS. Select None if
there is no external sensor.
● Protocol : type of Protocol sent by the chosen sensor. The protocol may be
accompanied by a synchronized PPS (for UTC) used to record incoming data. The 4
PPSoptions are: rising or falling edge, before or after the data . Timeout (for Pressure) of
the PPS below which it does not operate can also be recorded. see Appendix H.
● Serial: (only for GPS) if the chosen link is Serial, the link parameters are as follows:
> Parity: None, Odd, Even
> Stop bits: 1.0 or 2.0
> Standard: RS422/485 or RS232
> Baudrate: selected from a predefined list ranging from 1,200 to 115,200 bauds
● Ethernet: if the chosen link is Ethernet, the link parameters are as follows:
> Transport layer: may be TCP Server, TCP Client or UDP Broadcast (only TCP
Client for the GPS case).
> IP: the IP address of the target (only for a transport layer TCP Client)
> Port: the number of the port
● Lever arms (only for GPS): the lever arms represent the distance along the vessel’s three
reference axes between the position of the sensor and the position of the CRP.
● Forced Mode (only for GPS): the INSinside GAPStakes all GPSpositions that come in
input whatever their quality might be. If the GAPS is turned off in forced mode, it will
restart in forced mode.
64 MU-GAPS-AN-005-H - November 2019