Configuration Menu

The Configuration menu contains a number of dialogues for the configuration of Certus.

Manager Configuration Menu

Configuration Export

The Configuration Export dialogue can be used to export all the Certus settings to a file. This file can be imported at a later date or on other units. This is useful to restore a unit to a pre set configuration at a later date or for batch configuration of multiple units.

Manager Configuration Export Dialogue

Sensor Ranges

Note: The sensor range can only be modified for Certus. Certus Evo only offers a fixed sensor range. See Navigation Specifications for sensor range specifications.

The Sensor Ranges dialogue is used to set the dynamic range of the sensors. If the user is experiencing over-range events during operation, these settings should be used to increase the range of the sensor which is reporting the over-range. The lowest ranges give the best performance, the user should make changes slowly and monitor the results.

Manager Sensor Ranges Dialogue

Filter Options

For most applications the default filter options should be used and only the vehicle profile set. If in doubt please contact support@advancednavigation.com.

Manager Filter Options

Packet Rates

The Packet Rates dialogue allows the user to specify which packets output on a periodic basis and at what rate. The default packets enabled are the System State Packet (ID 20) and the Raw Sensors Packet (ID 28) at 20Hz and these typically provide all the data that a user will require. These two packets need to be enabled for the data graphs to update in Certus Manager. Other state packets can be enabled as required.

Note: Packet rate configuration applies only to the data port which the Manager is connected to. To configure other ports, the Manager must be connected to that port.

Manager Packet rates

Alignment

The Alignment dialogue is used to set the alignment offsets of the system installation. It is important to set the values in this dialogue correctly for accurate results. For most applications only the GNSS antenna offset values need to be entered and the rest of the values can be left at their factory defaults of zero.

Manager Alignment Dialogue

Alignment Offset

If Certus is installed into the vehicle with the positive X-axis pointing forwards and the positive Z-axis pointing down, then no alignment offset is required and the roll, pitch and heading offset values can remain at the factory defaults of zero.

If the unit is installed in a different orientation then the roll, pitch and heading offset must be entered. For example if the unit is installed on its side with the X-axis pointing up and the Z-axis pointing forwards and no change to the Y-axis, then this would result in a pitch offset of +90 degrees with roll and heading remaining zero.

If there is a small misalignment due to mechanical mounting error this can be compensated for by setting the vehicle stationary on a level surface and pressing the Zero Current Orientation button.

Note: Zero Current Orientation will only correct for roll and pitch offsets, the Heading offset must be entered manually and saved before using this function.

All the other offsets will be measured in the realigned body co-ordinate frame (X positive forward, Z positive down) after being corrected for any alignment offset entered.

Port Mode and Baud Rates

Some machines running Microsoft Windows do not support higher baud rates. When changing baud rates, it is recommended to test the baud rate configuration first, without ticking the Permanent box. This way, if it is not possible to communicate at the higher baud rate, a power cycle can be used to revert to the previous baud rate setting.

The factory default baud rate value for these ports is 115200 bps.

Note: The primary and auxiliary ports on Certus OEM are UART only, and cannot be changed to RS232 or RS422. An appropriate adapter/interface is required to connect to a computer.

Manager Baud Rates Dialogue

GPIO

This page allows the user to configure the input and output functions of the GPIO and Auxiliary ports. These functions are described in detail in Dynamic Pin Functions. These functions change dynamically and are effective immediately upon clicking Save Changes.

Note: The GPIO port functions at RS232 levels for data functions and 0 to 5 volt (or 0 to 3.3 V) levels for all other functions. The auxiliary port functions at RS232 or RS422 levels for data functions and 0 to 5 volt (or 0 to 3.3 V) levels for all other functions. The internal hardware automatically reconfigures based upon the selected function.

The default values for these settings are Inactive. The dedicated 1PPS signal is active by default.

Manager GPIO configuration Dialogue

Odometer

The Odometer dialogue allows the user to configure the odometer pulse length and view the real time odometer data to verify correct operation. See Odometer and Odometer Pulse Length for more information on the use of odometers. The odometer offset is also applied when using a DVL input.

Manager Odometer Dialogue

Reset

The Reset button causes the system to perform a power cycle. No configuration settings or state data are lost. The Cold Start button clears all filters, and connections are reset and must re-established. No configuration settings are lost. The Factory Restore button resets all Certus settings back to their factory defaults, including state data and all configuration settings. It also erases the hot start data so that the system is forced to perform a cold start.

Note: A Factory Restore will re-enable the DHCP Client and lose any static IP address settings.

Manager Reset Dialogue

Reference Position Offsets

The Reference Point Offsets dialogue allows the user to set measurement points away from its default position at the physical centre of the Certus unit. The primary reference point offset applies to data from all ANPP packets as well as all peripheral output such as NMEA messages and Heave Point 1.

When the values are zero the measurement point is the centre of the Certus unit. This can be offset to a different position on the profile by entering the offset value from the centre of the Certus unit to the desired position in the body co-ordinate frame (X positive forwards, Z positive down).

The Heave Points 2 to 4 allow the user to offset reference points for the heave values 2 to 4 in the Heave Packet.

Note: These values only apply to the Heave Packet. NMEA, TSS and Simrad heave is not affected by the values in this dialogue which are always measured at the centre of the Certus unit.

Manager Reference Position Offset

GPIO Output

The GPIO output configuration dialogue allows the user to configure the NMEA0183, TSS1 and SIMRAD output rates for the GPIO and Auxiliary port. These output rates will be observed with respect to the actual output selected in the GPIO port configuration.

Manager GPIO Output Dialogue

Manual Initialisation

The Manual Initialisation dialogue can be used to manually initialise Certus when a GNSS fix is not available. Setting the position will initialise the navigation filter. Setting the heading will also initialise the heading filter.

Manual Initialisation Dialogue

Dual Antenna

The Dual Antenna configuration page is only used if the primary and secondary GNSS antennas are not installed in their recommended and default positions of primary front and secondary rear, at the same height. If it is not practical to mount the antennas in the recommended alignment, the alternate alignments must be entered into this page. It is recommended to try and use one of the automatic offsets where possible, where the antennas must be installed in one of four different automatic offset orientations aligned on an axis. If it is not possible to use one of the automatic offsets, the antennas can be installed in any configuration and a manual offset should be entered. The manual offset is measured from the central base of the secondary antenna to the central base of the primary antenna in the body co-ordinate frame (X+ forward, Z+ down). If using a manual offset, be careful to measure the offset accurately, as even small offset errors can result in relatively large heading errors e.g. 2 cm error = 1.15 degrees heading error with a 1 metre separation.

• When using an automatic offset, the manual offset values are ignored.
• When using a manual offset, the automatic offset selection is ignored.
• When using automatic offset, the manual offset values will show the distance that Certus has automatically measured.

Manager Dual Antenna Dialogue

Gimbal

The Gimbal configuration dialogue is only used in speciality gimbal applications. Contact support@advancednavigation.com for more information on using Certus inside a gimbal.

Manager Gimbal Dialogue

Ethernet Settings

The Ethernet Settings dialogue allows the user to enable or disable the DHCP Client. When the DHCP Client is disabled you need to enter the TCP/IP settings if the user wishes to access the web UI. If the user is connecting to Certusvia the primary port these settings can be ignored. The default is for the Ethernet mode to be set to DHCP.

Manager Ethernet Settings Dialogue

CAN Settings

The CAN Settings page allows you to enable or disable the CAN functionality. If the user is connecting to Certus via the primary port then these settings can be ignored. The default for CAN is Enabled at 1,000,000 baud rate. A CANOpen EDS file is available. Contact support@advancednavigation.com to obtain a copy of this file.

Manager CAN Settings Dialogue