MoTeC ESDL3 User Manual
MoTeC SDL3 User Manual
Copyright © 2010 – MoTeC Pty Ltd
The information in this document is subject to change without notice.
While every effort is taken to ensure correctness, no responsibility will be taken for the
consequences of any inaccuracies or omissions in this manual.
PN 63037 V 1.2, May 2013
SDL3 User Manual
Contents
Introduction .............................................................................. 1
Features ................................................................................................ 1
System Overview .................................................................................. 3
Typical Devices used with the Dash Logger .............................. 3
Installation ................................................................................ 6
Mounting and Wiring ............................................................................. 6
Connecting Devices .............................................................................. 7
Inputs .......................................................................................... 7
Outputs ....................................................................................... 9
Communications ....................................................................... 10
Connecting Devices Examples ................................................ 11
Software Installation ........................................................................... 12
Dash Manager Software ........................................................... 12
i2 Data Analysis Software ........................................................ 13
Connecting the Dash Logger to a PC ...................................... 13
Configuration ......................................................................... 15
Configuration Sequence ..................................................................... 15
Configuration File ............................................................................... 15
Channels ............................................................................................. 16
Channel Properties ................................................................... 18
Selecting Channels .................................................................. 19
Connections ........................................................................................ 21
Configuring Inputs .................................................................... 21
Configuring Outputs ................................................................. 21
Configuring Communications ................................................... 21
Calculations ........................................................................................ 22
Special Calculations ................................................................. 22
General Purpose Calculations ................................................. 22
Functions ............................................................................................ 23
Data Logging ............................................................................ 23
Display ...................................................................................... 27
MoTeC SDL3 User Manual
Alarms ...................................................................................... 31
Other Functions ........................................................................ 32
Operation ................................................................................ 33
Retrieving the Logged Data ................................................................ 33
Sending and Retrieving Configuration Files ....................................... 33
Zeroing Sensors ................................................................................. 33
Checking Operation ............................................................................ 34
Configuration Versions and Updating ................................................. 34
Upgrading the Dash Logger ..................................................... 35
Password Protection ................................................................ 35
Other Online Activities .............................................................. 35
Appendices ............................................................................ 37
Specifications ...................................................................................... 37
Dash Logger Upgrades ...................................................................... 39
Characteristics .................................................................................... 40
Input Characteristics ................................................................. 40
Output Characteristics .............................................................. 45
SDL3 Pin List by Pin Number ............................................................. 46
SDL3 Pin List by Function .................................................................. 48
Mounting Dimensions ......................................................................... 50
Wiring .................................................................................................. 51
Connector ................................................................................. 51
Wire Specification ..................................................................... 51
PC Connection ......................................................................... 52
CAN Bus Wiring Requirements ................................................ 53
SDL3 Data Logger to ECU wiring (RS232) .............................. 54
Update Rate Summary ....................................................................... 56
Command Line ................................................................................... 58
CAN Bus Bandwidth Limit .................................................................. 60
Comms Error Codes ........................................................................... 61
Windows Keyboard Shortcuts ............................................................ 64
Glossary .............................................................................................. 69
MoTeC Introduction 1
Introduction
SDL3 - Sport Dash Logger
The SDL3 is a combined sophisticated display and powerful control device in
one lightweight unit. With the addition of a Data Logging upgrade it becomes
a fully programmable data logger with 16 MB or 120 MB memory (see Dash
Logger Upgrades). The screen layout is fully configurable to display a
multitude of data channels, warning alarms, lap times, fuel calculations,
minimum corner speeds, maximum straight speeds and more. The SDL3
performs calculations, acquiring data from other MoTeC devices such as an
ECU, other Dash Logger and input expander modules, which enable it to log a
multitude of inputs.
ESDL3 - Enclosed Sport Dash Logger
The ESDL3 is an enclosed version of the SDL3, providing the flexibility to
connect a display suitable for your application or to use as a 'black box' type
data logger. It functions in the same way and uses the same software as the
SDL3.
In the remainder of this documentation when reference is made to the SDL3
Dash Logger, it also applies to the ESDL3 – except when referring to the
display.
Features
All MoTeC Dash Loggers come with a range of features as standard and
several options available as upgrades to customise and grow your system.
These additional features are activated through a simple password system,
and can be purchased at any time when you need them.
See Dash Logger Upgrades
General
• All-in-one display, logger and controller eliminates the need for separate
devices
• Suitable for bikes, cars, marine and industrial applications
• Compact, durable and reliable unit
• Supports wideband Lambda from PLMs or LTCs, using Bosch LSU or
NTK UEGO 5 wire sensors
• Straightforward control for lights, fans, pumps
• Easily integrated with MoTeC CAN based devices e.g. expanders, lap
timing devices, shift lights and ECUs
2 Introduction
Logging and Analysis
• Optional internal data logging of 16 MB or 120 MB
• Fast download via Ethernet
• Accommodating over 300 channels derived from a mixture of analogue
and digital inputs, RS232 and CAN data channels
• Configurable to use sensors from some existing engine management
systems
• Data analysis with i2 Standard or optional i2 Pro software
Display
• Customisable screen layout, measurement units and warnings
• Configurable curved bar graph can display any channel with optional
peak, hold and shift markers
• 48 user-defined alarms, for example Low Oil Pressure, Low Fuel, Fast
Lap
• Programmable overrides—particularly useful for showing values such as
lap times
• Three programmable 'pages' for Warm-up, Practice and Race ensure the
driver is shown only the most relevant information at any given time
• Adjustable backlight (optional)
Software
• Windows-based software designed for setup and management of the
display and data logging system
• The user can generate a configuration file offline and send the completed
configuration to the Dash Logger
• Calculations including lap times, lap gain/loss, speed and distance, fuel
prediction
• Monitor active channels—view all channels live
• Sensor zeroing
• Details editor including event, venue and vehicle details
• Extensive Help screens
• To access the newest software features you can download the latest
version from www.motec.com/downloads
MoTeC Introduction 3
Compatibility
• MoTeC ECUs: M4, M48, M8, M400, M600, M800 and M880
• MoTeC Accessories: MDD, E888, SLM, PLM, LTC, BR2, PDM, GPS, etc.
• Many non-MoTeC devices
Required Accessories
Refer to Connecting the Dash Logger to a PC
• Standard Ethernet cable
• Any one of the following Ethernet to Autosport connections:
o #62202 SDL3 loom
o #61131 Ethernet cable unterminated, 2 metre
o #61132 Ethernet to Autosport pins cable, 1.8 metre
System Overview
The Dash Logger offers extensive possibilities to integrate with ECUs,
peripheral devices and accessories to form a complete solution that powers,
controls, logs, monitors and communicates virtually any automotive
parameter.
Typical Devices used with the Dash Logger
ECUs
The Dash Logger can be connected to all MoTeC engine management
systems and some other manufacturers' ECUs either via CAN or RS232. This
avoids duplication of sensors and allows the Dash Logger to display and log
many ECU parameters.
The typical update rate is about 20 times per second for RS232 and 50 times
per second for CAN.
Sensors
The Dash Logger inputs can be connected to a wide variety of sensors.
Different types of sensors are available to suit different types of
measurements, for example: temperature, pressure, movement etc.
Sensors convert a physical measurement (e.g. pressure) into an electrical
signal (e.g. volts).
Different types of sensors generate different types of electrical signals. For
example most temperature sensors convert the temperature into a variable
resistance which may be measured by an Analogue Temperature input.
4 Introduction
However most wheel speed sensors generate a variable frequency signal
which must be connected to either a Digital input or a Speed input.
Expanders
E888
The SDL3 supports an E888 Expander, 8 x 10 bit thermocouples only.
Accessories
BR2
A BR2 Beacon Receiver may be connected to the Dash Logger, which
allows the Dash Logger to calculate lap times for display and to provide lap
information for the data analysis software.
SLM
The SLM Shift Light Module can be used for shift lights, warning lights and
other driver alerts.
The SLM includes 8 LEDs that can be programmed to display any colour.
GPS
The Dash Logger supports many GPS (Global Positioning System)
devices allowing the Dash Logger to record speed and position information
as well as providing lap timing.
This information can be used in the i2 data analysis software to create
track maps, and plot and compare driven lines.
Video
MoTeC’s Video Capture System (VCS) is an integrated in-car camera system,
recording video and audio using the MPEG-2 video compression format at
broadcast quality. It includes a built in real-time graphics processor that allows
sensor data to be overlaid onto the video in real-time without the need for
additional hardware. The CAN interface enables communication with other
devices, for example to set Auto Start/Stop Recording conditions.
Multiple video streams, from in-car cameras for example, can be linked with
logged data for synchronised playback of footage alongside other analysis
components. Synchronised video requires a standard video capture device
and the Pro Analysis upgrade to provide access to i2 Pro data analysis
software.
Note: Synchronisation can be completed manually or automated by recording
regular sync points onto the audio track of the video camera. This requires the
MoTeC Introduction 5
small Video Sync Module (VSM) to be connected to an auxiliary output of the
Dash Logger and to the audio input of the camera.
Lambda Measurement
PLM
The PLM Professional Lambda Meter measures the air fuel ratio over a
wide range of mixtures with fast response time. It is compatible with Bosch
LSU and NTK UEGO Lambda sensors and displays the Lambda readings
via the integrated display.
LTC/LTCD
The LTC Lambda to CAN (Dual) meters provide accurate Lambda
measurements even when the exhaust gas temperature changes rapidly.
They are compatible with the Bosch LSU 4.9 Lambda sensor and transmit
Lambda readings via the CAN bus.
Remote Displays
A remote display device may be connected to the Dash Logger to allow
display of any value that the Dash Logger calculates, such as lap times and
warning alarm messages.
The Dash Logger supports MDD displays which are connected via CAN.
PDMs
Power Distribution Modules are designed to replace conventional relays,
fuses and circuit breakers by providing electronically switched power to the
various electrical systems in the vehicle. This simplifies wiring and switch
requirements, while increasing reliability.
Full diagnostic information, including output currents and error status can be
transmitted via CAN to the Dash Logger.
Several models are available to suit vehicles with different complexity ranging
from 15 to 32 outputs and 12 to 23 inputs.
Other Devices
Many other devices can be connected to the Dash Logger.
6 Installation
Installation
This section provides information on how to install the Dash Logger in the
vehicle and connect it to other devices. It will also provide information on how
to install the software.
Mounting and Wiring
The Dash Logger has three threaded mounting posts. For further details see
Mounting Dimensions
Mounting Tips
• Avoid twisting the case: use washers between the unit and the mounting
panel to ensure that the unit is mounted only at the mounting points and
do not over tighten the mounting screws.
• Vibration isolation may be desirable if the vehicle vibrates severely.
• Mount so that the connector may be easily accessed.
• Orientation: for best contrast, the display should be viewed at an angle of
approximately 20 degrees, However the Dash Logger will give good
contrast between 0 and 40 degrees. Display reflections should also be
considered when determining the mounting angle.
The SDL3 uses a 37 pin Autosport connector. See Connector
List By Function for full details.
and SDL3 Pin
Wiring Tips
• To ensure that the connector is sealed, plug unused holes with filler plugs.
A heat shrink boot may also be used if desired.
• Use 22# Tefzel wire (Mil Spec M22759/16-22) (5 A max at 100 C)
• Tefzel wire is difficult to strip unless the correct stripping tool is used.
• Be careful not to nick the wires as this may result in wire failure or poor
crimping.
MoTeC Installation 7
• Some sensor connectors may not be available with 22# terminals, in
which case doubling the wire over gives the equivalent of an 18# wire.
This is suitable for many of the common sensor terminals.
• Use the correct crimping tool for all contacts to ensure a reliable
connection.
• Power the Dash Logger via a separate switch and a 5 ampere fuse, to
ensure the PC can communicate with the Dash Logger without the need
to power the rest of the vehicle.
• The Dash Logger ground must have a direct connection to the vehicle
battery.
• Dash Logger is connected to other devices via the CAN bus.
Connecting Devices
Peripheral devices can be directly connected to the Dash Logger's input and
output pins. The Dash Logger can also send or receive data from other
devices via either RS232 or CAN communications.
Inputs
Input Types
A range of sensors is available to suit different types of measurement, e.g.
temperatures, pressures, speed. Each type of measurement generates a
different electrical signal that requires a suitable input type.
Each sensor needs to be connected to the type of input designed to suit that
type of sensor.
MoTeC devices have the following input types available:
• Analogue Voltage Inputs
• Analogue Temperature Inputs
• Digital Inputs
• Wheel Speed Inputs
In addition to sensors connected to the inputs, the Dash Logger has internal
sensors available for battery voltage, device temperature and G-force.
Analogue Voltage Inputs
Analogue Voltage inputs are normally used to measure the signals from
analogue voltage type sensors, i.e. sensors with variable voltage outputs,
such as:
8 Installation
o Rotary or linear potentiometers
o Signal conditioned 3 wire pressure sensors
o Thermocouple amplifiers
o Accelerometers
These inputs can also be used to measure two wire variable resistance
sensors if an external pull-up resistor is connected from the input to the 5
V sensor supply.
Additionally, on/off switch signals may be connected, which may also
require an external pull-up resistor.
Analogue Temp Inputs
Analogue Temperature inputs are identical to Analogue Voltage inputs,
except that they contain a 1000 ohm resistor which is connected internally
from the input pin to the 5 V sensor supply. This allows the Analogue
Temperature inputs to be used with two wire variable resistance sensors,
such as:
o Two wire thermistor temperature sensors
o Two wire variable resistance pressure sensors
Some voltage output sensors can also be used if they can drive the 1000
ohm resistor without causing an error in their reading (e.g. MoTeC
Thermocouple Amplifier).
Additionally, on/off switch signals may be connected.
Digital Inputs
Digital inputs can be used for the external switches required to operate the
display. These inputs have a 4700 ohm resistor connected internally from
the input pin to the 5 V sensor supply so that a switch can be simply
connected between the input pin and 0 V.
They can also be connected to a brake switch or other switch.
Digital Inputs include the following measurement methods:
o Frequency: The frequency of the input signal is measured
o Period: The time between successive pulses is measured
o Pulse width: The low time of the pulse is measured
o Count: Counts the number of pulses
o Phase Difference: Calculates the phase difference between two digital
inputs
o Beacon: For connection of a lap beacon
MoTeC Installation 9
Speed Inputs
Speed Inputs are identical to Digital Inputs except that they can also be
configured to suit Variable Reluctance (Magnetic) sensors, such as some
wheel speed sensors. Because the amplitude of the signal from these
sensors varies with speed of rotation, variable trigger levels are required,
which must vary with the frequency of the input signal.
The Speed Inputs can also be used with Hall Effect type wheel speed
sensors.
The Pulse Width method measures the high time of the pulse rather than
the low time as measured by the Digital Inputs.
Input Specifications
For full specifications refer to Input Characteristics
Expanders
If additional sensors are required, input expanders can be used, such as
E888. Sensors can be connected to the expander inputs and communicate
via either RS232 or CAN. See Configuring Communications
Outputs
Auxiliary Outputs are used to control various vehicle functions e.g.
o Gear Change Lights
o Warning Lights
o Thermatic Fan
o Gear Box Oil Pump
Note: Devices that consume more than the maximum current (e.g. motors)
should be driven via a relay or a MoTeC PDM (Power Distribution Module).
Output Specifications
Full specifications can be found in Output Characteristics.
Expanders
If additional outputs are required, output expanders can be used, e.g. PDM.
Expander outputs can perform the same tasks as the device outputs and can
be driven by communication via either RS232 or CAN. See Configuring
Communications.
10 Installation
Communications
Communications are used to send and receive data from one device to
another. There are two communication protocols: RS232 and CAN. Generally
older devices use RS232 and newer devices use CAN.
CAN (Controller Area Network) Communications
This protocol enables communication between all devices connected to the
same bus. The CAN bus allows for communicating at high speeds. The Dash
Logger has two independent CAN communications ports that can be
connected to other devices with a compatible CAN port. The bus speed for
each interface can be set independently.
Typical devices communicating over CAN:
o 'Hundred series' ECU: M400, M600, M800, M880
o Shift Light Module: SLM
o Lambda meters: LTC, PLM
o Expanders and input modules: E888
o Displays: SDL
o Beacon receiver: BR2
These devices communicate at 1 Mbit/sec, so any other devices connected
on the CAN bus must also communicate at 1 Mbit/sec. If a device
communicates at another speed, it should be wired to the other CAN bus, and
the speed of that CAN bus must be set to match the speed of the device.
RS232 Serial Communications
This is a one to one protocol, communicating from one device to one other
device. Typical devices communicating over RS232:
o M4, M48 ECUs
o Radio telemetry device
o Gobal positioning system: GPS
Note: The Dash Logger can only communicate with devices for which it has
the appropriate communications protocol defined.
MoTeC Installation 11
Connecting Devices Examples
Device Connect via Remarks
Sensors
External Buttons for:
- Display mode
- Display next line
(and optional
previous line)
- Alarm acknowledge
- Lap number reset
- etc.
External LED Lights
SLM Shift Light
Module
K-type
Thermocouples
Inputs:
The appropriate input
type depends on the
sensor type
Inputs:
Digital or Speed inputs
Outputs:
Auxiliary output
Communications:
CAN
Inputs:
Analogue Voltage or
Analogue Temperature
input
MoTeC supplies datasheets
with wiring details for all
sensors via the website
Wire between Dash Logger
input and Dash Logger 0 V.
If wired to an Analogue
Voltage input connect an
external pull-up resistor
between the input pin and the
5 V sensor supply.
Wire between one of the
Auxiliary Outputs and battery
positive and include a current
limiting resistor
Connect via TCA (Thermo
Couple Amplifier)
ECU M4, M48, M8
ECU 'hundred
series': M400, M600,
M800, M880
Communications:
CAN
Communications:
RS232
Communications:
CAN
Connect via E888
Uses the Telemetry feature of
the ECU to send data to the
Dash Logger
Ensure the ECU and Dash
Logger are connected on the
same CAN bus
12 Installation
Software Installation
This section provides information on Dash Manager software, and i2 Data
Analysis software.
It will also explain how to connect the Dash Logger to the PC.
PC Recommendations
MoTeC recommends a dedicated laptop for your race car with the following
specifications:
• 32 bit operating system: Windows XP, Vista or Windows7
• Screen size: 1024 x 768
• Processor speed: 1-2 GHz Pentium
• 2 GB RAM
• 256 MB graphics card
• 2 USB ports
• Ethernet port
Most current laptops will meet the specifications above and this will ensure all
MoTeC software will run on it.
Dash Manager Software
Dash Manager software is used for configuration, testing, retrieving the
logged data, and for general management of the Dash Logger.
Dash Manager supports configuration of the following connected devices:
E888, SLM.
Installing Dash Manager Software
1. Go to the MoTeC website at www.motec.com and navigate to
software/latestreleases/SDL3 Dash Manager software
OR
Locate the Dash Manager software on the MoTeC Resource Disc
2. Save the selected file in your preferred location (for example desktop)
3. When downloading is finished, double click on the file and select run
4. Follow the instructions on the InstallShield Wizard
5. To start the program after installation, click the Dash Manager icon on
the desktop or click Start > All Programs > MoTeC > SDL3 > SDL3
Dash Manager
MoTeC Installation 13
Updating Dash Manager Software
Software updates are available free of charge, giving access to the latest
features. Download the latest software version from the website and follow the
software installation instructions to update to the new version.
To update the associated firmware in the device, select Upgrade Dash
Version from the Online menu. See Configuration Versions and Updating
.
i2 Data Analysis Software
MoTeC's i2 data analysis software is used to analyse the logged data that has
been recorded by the Dash Logger. Any number and combination of graphs,
gauges and reports can be analysed simultaneously. The i2 environment can
be customised to specific user requirements.
There are two levels of analysis functionality available; i2 Pro and i2
Standard.
i2 Standard is included with any Data Logging upgrade, while i2 Pro requires
the optional Pro Analysis upgrade. See Dash Logger Upgrades
i2 Pro provides advanced mathematics, multiple overlay laps, and unlimited
components, workbooks and worksheets.
.
Connecting the Dash Logger to a PC
The Dash Logger connects to the Ethernet port on the PC. This requires a
connector for the standard Ethernet cable in the loom.
The SDL3 loom #62202 incorporates this connector. Alternatively the
connector can be wired into an existing loom using the unterminated Ethernet
cable (#61131) or the Ethernet to Autosport pins cable (#61132).
All options are used in conjunction with a standard Ethernet cable.
Connection details are described in PC Connection
PC Communications Setup
To enable PC communications, a connection must be setup in the Dash
Manager software to match the Dash Logger serial number.
• On the Tools menu click Connection Settings and then click Add
• Click OK to choose IP (Ethernet). This is the only available connection
type.
• Click Search*
• In the list with discovered devices, click the required Dash Logger and
click Select
If the PC needs to communicate with more then one Dash Logger, repeat the
steps.
14 Installation
* The connection uses IPV6, which can be affected by firewall and anti
virus applications.
If you have a Dash Logger connected but it is not listed in Discovered
Devices, try disabling or uninstalling all anti-virus software.
If the Device is 'discovered' without the anti-virus software, you can turn it
back on and put in appropriate exceptions to allow the Dash Logger
Manager to communicate with the device.
Only one connection can be active at a time. To switch to a different Dash
Logger, click Make Active.
Tip: The current connection is listed at the bottom of the Dash Manager
splash screen (this is the main Dash Manager screen with the picture of the
Logger)
For a quick way to switch between connections
• In the Dash Manager splash screen, enter the connection number
(to enter the splash screen, close all other windows in Dash Manager).
MoTeC Configuration 15
Configuration
All aspects of the Dash Logger can be configured, including; which sensor is
connected to which input, the calibration of each sensor, what to display and
where to display it, what to log and how fast to log it, tacho range, warning
alarms, multi stage shift lights, etc.
The configuration is stored in a file on the PC. When starting Dash Manager
software, the menu items related to changing the configuration are
unavailable. To make them available, load a configuration file either by
opening an existing file or by creating a new one.
All changes to the Dash Logger configuration are performed ‘Offline’, i.e.
without the PC communicating with the Dash Logger. The changes are saved
in the configuration file on the PC. The file must be sent to the Dash Logger
before the changes take effect. See Sending and Retrieving Configuration
Files.
Tip: When using a laptop in and around a car, it is often not practical to use a
mouse to navigate through the program. Using the keyboard to select options
is easier. An overview is given in Windows Keyboard Shortcuts
Configuration Sequence
The configuration is best setup in the following order:
1. Connections (Input Pins & Communications)
2. Calculations (Lap Time, Fuel Prediction etc.)
3. Functions (Logging, Display, Alarms, Auxiliary Outputs etc.)
This simplifies the setup procedure by ensuring that the required channels are
available for the functions that use them.
Channels cannot be used until they have been generated by an input,
calculation or function.
Configuration File
From the File menu the following options are available:
• New – creates a new configuration based on a predefined template
• Open – selects an existing file
Right-click the configuration file to Rename, Delete, Send to a disk etc.
• Save – saves a newly created configuration with a meaningful name
• Save as – can be used to create a copy of an existing configuration file by
giving it a new name
16 Configuration
• Edit Details – allows for entering event, venue and vehicle details to be
stored with the configuration file
• Check Channels – verifies that all channels are correctly generated
• Edit Configuration Comments – allows for other comments to be stored
with the configuration file
• View Configuration Summary – gives a quick overview of the
configuration file
• Convert Logging Image – allows users to manually convert a log file for
use in i2
• Exit – exits the program
Tip: The most recently used files appear at the bottom of the File menu. This
is often the easiest way to open an existing file.
Backups
Whenever a file is saved, the previous content of the file is saved in the Save
Backups directory. The total number of files is limited to 100.
Channels
Channels are used to convey information between the various systems of the
Dash Logger.
For example an input pin may feed a channel called ‘Fuel Pressure’.
This channel may then be used by another system, such as the Di splay
System or Data Logging systems.
The Dash Logger channel scheme allows complete flexibility in channel
usage, as any available channel can be used by any other function, i.e. any
channel can be logged, displayed, used in conditions, used in alarms, used as
an input to the user definable tables, etc.
All systems within the Dash Logger that generate values must feed one of the
channels.
Pre-defined Channels
MoTeC has defined an extensive list of channels.
General Purpose Channels
Since the use of all channels cannot be predetermined, a number of general
purpose channels have been included for occasions when a suitable
predefined channel is not available.
MoTeC Configuration 17
These general purpose channels may be required when measuring an
uncommon value, or when a general purpose function needs to generate a
special output channel. For example, a 3D table may generate an output
channel to control a valve of some sort, in which case a general purpose
channel may be used and named appropriately.
18 Configuration
Channel Properties
Each channel has defined properties, some of which may be modified by the
user. Predefining these properties makes the channels easy to use
throughout the rest of the software.
• Properties that may be modified by the user
o Name
The channel names (and abbreviations) may be changed if necessary.
However name changes should be limited to name preferences rather
than redefining the purpose of the channel, except for the general
purpose channels which may be renamed to suit the current use.
o Abbreviation
o Units (e.g. degrees Celsius, degrees Fahrenheit)
The units for a channel can be selected from a predefined list, for
example the Engine Temperature channel may have units of degrees
Celsius, Fahrenheit or Kelvin. Conversion between units is
automatically handled by the software.
Note: The units are used for display purposes only. This means that
the units can be changed at any time without affecting the calibration of
the channel.
• Fixed properties
o Measurement type (e.g. Temperature)
Defining the measurement type allows the channels to be displayed in
any unit suitable for that type, with automatic conversion between the
units. For example all temperature channels can be displayed in
degrees Celsius, Fahrenheit or Kelvin.
o Resolution
The resolution of all channels is fixed, for example the resolution of the
Engine Temperature channel is fixed at 0.1 °C.
Fixed channel resolutions ensure that the unit conversion system
works properly and that channel comparisons can be performed
correctly.
o Suitable logging rates
o Suitable display filtering
o Minimum and maximum range
MoTeC Configuration 19
Selecting Channels
There are two methods of selecting channels, either the Category Method or
the Search Method.
Category Method
This method divides all the channels into categories and sub categories, so
that the list can be narrowed down to a small list of channels. For example,
the ‘Engine Sensors / Cooling’ category shows a list of channels associated
with the cooling system of the engine.
When selecting a channel from the complete list of channels, it is usually
easiest to use the category selection method, for example when assigning a
channel to an input pin.
To expand a category
• click on the plus sign (+) next to the category name.
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