Logging Gnss Position Data; Con Guring The Logging Of Internal Variables; Table 27: Variables - Job 2; Table 28: Gps Functionality - Danfoss TFX Installation And Operation Manual

Operation
INFORMATION
If you click on a placeholder (e.g. A), this opens the window
I O I
NPUT PERAN D NFORMATION
You can nd the allocation of the variables for this example
in the table below.
13. Click on the variable in the list that you want to
allocate the placeholder to.
Allocate the following variables to the placeholders:
Table 27: Variables – Job 2
Variable Type
A U8
B x
C S32
D U8
E x
F S32
Variables - Job 2
14. Click on the N button when you have entered the
EW
calculation operations completely.
15. Click on F > S in the menu.
ILE AVE
16. Load the con guration to the device. See chapter
Loading the con guration to the device.
You have completed the con guration for logging
speci c data bytes.

5.2.4 Logging GNSS position data

The GNSS position data contains information on
longitude and latitude, altitude, direction, and speed as
well as time and date. Data is only logged when valid
position data is received.
1. Click on the GPS functionality folder.
2. Set and save the following:
28
TFX INSTALLATION AND OPERATION MANUAL
O .
OR OPEN A NEW PERATION
Name/value
volatile U8 trigger
00000000
volatile S32 engine speed new
volatile U8 trigger
00000000
volatile S32 engine speed old

Table 28: GPS functionality

Variable Function
O Each log le contains position data at least once.
N C E PER FILE
E Enables/ disables the position data logging.
NA B LE D
AND: Position data is logged if both conditions (time
and distance) are met.
OR: Position data is logged if one of the conditions
AND / OR (time or distance) is met.
Time period during which the position data
L P (S ) should be logged.
OGGING ERIO D
L Distance between the last position logged and the
OGGING DISTAN C E
( ) current position (linear distance).
METERS
NOTICE
Oversampling due to too-frequent logging of GPS position
data will cause high data consumption or high number of
write cycles on the internal memory.
At the following settings, the position data is logged every
100 ms:
Logging period = 0
Logging distance = 0
These settings generate a high data consumption. If there
is no mobile radio connection, the position data is written
to the device's internal memory instead. This considerably
reduces the service life of the internal memory.
Under Variable Logging period, enter a value >= 2 s
•
because the device only receives new GPS data every 2 s.
Under Variable Logging distance, enter a value above the
•
GPS accuracy.

5.2.5 Con guring the logging of internal variables

You can log various internal variables. Internal variables can
be both device variables and interface variables.
To log internal variables, you need an object
F - O in the object dictionary group O
UN CTION PERATION
M . With the object A
ANAGER
up to 8 internal variables can be logged in one process as a
virtual CAN message.
6046279-001 March 2020
A -
CTION
PERATION
– F – O
CTION UN CTION PERATION
,