MoTeC C185 User Manual
C185
- Combined Display Logger
USER MANUAL
MoTeC C185 User Manual
Copyright © 2014 – 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.
V 2.0, June 2014
C185 User Manual MoTeC
Contents
Introduction .............................................................................. 1
Features ................................................................................................ 1
System Overview .................................................................................. 3
Typical Devices Used With C185 ............................................... 4
Installation ................................................................................ 8
Mounting and Wiring ............................................................................. 8
Connecting Devices .............................................................................. 9
Inputs .......................................................................................... 9
Outputs ..................................................................................... 11
Communications ....................................................................... 11
Connecting Devices Examples ................................................ 13
Software Installation ........................................................................... 14
C185 Dash Manager Software ................................................. 14
i2 Data Analysis Software ........................................................ 14
Telemetry Monitor Software ..................................................... 15
Connecting the C185 to a PC .................................................. 15
Configuration ......................................................................... 16
Configuration File ............................................................................... 16
Channels ............................................................................................. 17
Channel Properties ................................................................... 19
Selecting Channels .................................................................. 20
Connections ........................................................................................ 22
Configuring Inputs .................................................................... 22
Configuring Outputs ................................................................. 22
Configuring Communications ................................................... 22
Calculations ........................................................................................ 23
Special Calculations ................................................................. 23
General Purpose Calculations ................................................. 23
Functions ............................................................................................ 24
Data Logging ............................................................................ 24
Display ...................................................................................... 28
MoTeC C185 User Manual
Other Functions ........................................................................ 36
Operation ................................................................................ 37
Retrieving the Logged Data ..................................................... 37
Sending and Retrieving Configuration Files ............................. 37
Zeroing Sensors ....................................................................... 37
Checking Operation .................................................................. 38
Configuration Versions and Updating ...................................... 38
Upgrading C185 ....................................................................... 39
Password Protection ................................................................ 39
Other Online Activities .............................................................. 39
Appendices ............................................................................ 41
Specifications ...................................................................................... 41
C185 Upgrades................................................................................... 43
Characteristics .................................................................................... 44
Input Characteristics ................................................................. 44
Output Characteristics .............................................................. 49
Pin List by Pin Number ....................................................................... 50
Pin List by Function ............................................................................ 53
Mounting Dimensions ......................................................................... 57
Wiring .................................................................................................. 58
Connector ................................................................................. 58
Wire Specification ..................................................................... 58
PC Connection ......................................................................... 59
CAN Bus Wiring Requirements ................................................ 60
C185 to ECU wiring (RS232) ................................................... 61
Update Rate Summary ....................................................................... 63
Command line..................................................................................... 64
CAN Bus Bandwidth Limit .................................................................. 66
Comms Error Codes ........................................................................... 67
PC Connection - IP Address ............................................................... 70
Windows Keyboard Shortcuts ............................................................ 74
Glossary .............................................................................................. 78
MoTeC Introduction 1
Introduction
The C185 comes standard as a combined full colour display, powe rful control
device and fully programmable data logger with 250 MB memory (500
optional). The anti-reflective, high contrast display is clear and vibrant in direct
sunlight. Displayed channels and labels are configurable on supplied layouts;
software for fully configurable custom layouts available early 2014. The C185
acquires data from devices such as an ECU and displays data channels,
warning alarms, lap times, fuel calculations, maths functions and much more.
Features
The C185 comes 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 acquired from MoTeC, at
any time when you need it. See C185 Upgrades
General
• High resolution 125 mm (5" approx) colour LCD display, with brightness
for sunlight readability
• 10 full colour (RGB) LEDs; colour, function and intensity are fully
programmable
• 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 and PID controlled devices
• Easily integrates with MoTeC CAN based products such as ECUs and
expanders. Full I/O expansion available with use of E888, E816, VIM and
SVIM expanders.
Logging and Analysis
• Internal data logging, 250 MB standard or 500 MB optional.
• 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
2 Introduction MoTeC
• Telemetry (T2) and remote logging options
Display
• Colour TFT LCD, anti-reflective
• 12 customisable layout options
• Customisable measurement units and warnings
• Configurable dial, sweep or bar graph can display any channel with
optional peak, hold and shift markers
• 48 user-defined alarms, e.g. Low Oil Pressure, Low Fuel, Fast Lap
• Programmable overrides - particularly useful for showing values such as
lap times
• Three programmable modes or 'pages' with customisable labels ensure
the driver is shown only the most relevant information at any given time
• Adjustable backlight
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 then send the
completed configuration to the C185
• 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
• Latest software version is available free of charge from
www.motec.com/downloads
3 MoTeC Introduction
Compatibility
• MoTeC ECUs: M4*, M48*, M8*, M400, M600, M800, M880, M1
• MoTeC Accessories: VIM, SVIM, E888, E816, SLM, PLM, LTC, BR2,
PDM, GPS, VCS, Telemetry etc.
• Many non-MoTeC devices
*For some ECUs, an additional cable/adaptor may be required in
Required Accessories
Refer to Connecting the C185 to a PC
• Standard Ethernet cable
• Any one of the following Ethernet to Autosport connections
o #62206 C185 loom
o #61131 Ethernet cable unterminated, 2 meter
o #61132 Ethernet to Autosport pins cable, 1.8 m
System Overview
The C185 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.
The picture shows just one example. For a tailored solution to your application
contact your dealer or check out the website.
4 Introduction MoTeC
Typical Devices Used With C185
ECUs
The C185 can be connected to most MoTeC ECUs and some other
manufacturers' models either via CAN or RS232. This avoids duplication of
sensors and allows the C185 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 C185 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,
however most wheel speed sensors generate a variable frequency signal
which must be connected to either a Digital input or a Speed input.
Expanders
VIM / SVIM
The VIM is a compact and versatile input expander module with 24
analogue inputs of various types including high speed, high resolution and
differential types. The VIM also has two digital inputs with programmable
trigger levels.
Several VIMs may be connected to the C185 providing more than 300
sensor inputs. The VIM supports many different types of sensors including
unamplified thermocouples and strain gauges.
The Synchronous Versatile Input Module (SVIM) is a compact expander
that works the C185 to facilitate the synchronised logging of high speed,
high resolution inputs. Multiple SVIMs are synchronised so that every
SVIM in the vehicle samples its high resolution AV inputs at the same
instant in time.
SVIMs are versatile in nature and can be located close to sensors,
reducing the weight and complexity of wiring. When used in multiples, up
to 200 sensor inputs are available. The SVIM supports many different
types of sensors, including unamplified thermocouples and strain gauges.
MoTeC Introduction 5
E888/E816
The C185 supports two E888 or E816 Expanders allowing expansion of
the number of inputs and outputs.
The E888 has 8 x 10 bit thermocouple inputs, 8 x 10 bit voltage inputs, 4
digital inputs, 2 switch inputs and 8 outputs.
The E816 has 16 x 10 bit voltage inputs, 4 digital inputs, 2 switch inputs
and 8 outputs.
Note: The E888 / E816 inputs have lower resolution than the VIM/SVIM
inputs and have slower update rates.
Accessories
BR2
A BR2 Beacon Receiver may be connected to the C185, which allows the
C185 to calculate lap times for display and to provide lap information for
the data logging analysis software.
SLM
The SLM Shift Light Module can be used for shift lights, warnings and
other driver alerts.
It comprises 8 LEDs that can be programmed to display any colour.
GPS
The C185 supports many GPS (Global Positioning System) devices
allowing the C185 to record speed, generate lap times and measure
position information.
This information can be used in the i2 data analysis software to create
track maps, and plot and compare driven lines.
Telemetry
The C185 supports transmission of data via a telemetry radio to a remote
location such as a pit garage. This allows monitoring of the current vehicle
condition, position on the track, lap times, fuel remaining, laps remaining
etc.
The telemetry system provides three major functions:
1. Real time data that is transmitted continuously and can be shown on
graphs, gauges and other displays.
2. End of lap data which shows summary information at the end of a lap
such as lap time, maximum temperatures etc.
3. Telemetry analysis which exports the real time data to the i2 analysis
software at the end of each lap or on demand which allows normal
6 Introduction MoTeC
analysis of the data including maths calculations, while the vehicle is still
on the track.
Other telemetry features include: warning alarms, position of multiple
vehicles on a track map, broadcast data via DDE (Dynamic Data
Exchange) or via IP (Internet Protocol).
Note: The Telemetry option is required for the basic functionality. The
Remote Logging option is required in addition to the Telemetry option for
the Telemetry Analysis function.
High Definition Video
MoTeC brings true high definition to motorsport with its new HD Video
Capture System. The HD-VCS provides superior quality video and
numerous features designed specifically for the racing environment.
Features include:
• Genuine High Definition with 1080p @ 30 frames per second
• Automatic Start/Stop, eliminating the possibility of drivers forgetting to
turn it on
• 12 V power direct from the vehicle - no batteries to recharge
• Live gauges
• Over 5 hours of recording at 1080p
• Records to removable storage up to 32 GB
• Video can be played directly from the card
• Automatic CAN Synchronisation with data in i2 (available late 2013)
• Compact, lightweight recording unit
automatically recorded on the video
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 modules 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.
MoTeC 7 Introduction Remote Displays
A remote display device may be connected to the C185 to allow display of any
value that the C185 calculates, such as lap times and warning alarm
messages.
The C185 supports D153, D175 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 C185.
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 C185. Contact your dealer for
advice.
8 Installation MoTeC
Installation
Mounting and Wiring
C185 has three threaded mounting posts. For further detail 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 C185 will give good contrast
between 0 and 40 degrees. Display reflections should also be considered
when determining the mounting angle.
20°
The C185 uses a 79 pin Autosport connector. See Connector and Pin List by
Pin Number for full details.
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.
• 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.
MoTeC Installation 9
• Use the correct crimping tool for all contacts to ensure a reliable
connection.
• Power the C185 via a separate switch and a 5 ampere fuse, to ensure the
PC can communicate with the C185 without the need to power the rest of
the vehicle.
• The C185 ground must have a direct connection to the vehicle battery.
• C185 is connected to other devices via the CAN bus. Refer to CAN Bus
Wiring Requirements for details.
Connecting Devices
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
• Switch Inputs
• Digital Inputs
• Wheel Speed Inputs
Note: Some inputs require a device upgrade to make them available
In addition to sensors connected to the inputs, the C185 has internal sensors
available for battery voltage, 3-axis G force and device temperature.
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:
o Rotary or linear potentiometers
o Signal conditioned 3 wire pressure sensors
o Thermocouple amplifiers
o Accelerometers
10 Installation MoTeC
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 se nsors
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.
Switch Inputs
Switch inputs are generally 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
Digital Inputs are identical to Switch Inputs except that they include the
following additional 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 Beacon: For connection of a lap beacon
Speed Inputs
Speed Inputs are identical to Digital Inputs except that they can also be
configured to suit Variable Reluctance (Magnetic) sensors e.g. so me
wheel speed sensors. Because the amplitude of the signal from these
MoTeC Installation 11
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 measurement 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 e.g. E888,
E816, VIM, SVIM. 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 PDM.
Output Specifications
Full specifications can be found in Output Characteristics.
Expanders
If additional outputs are required, output expanders can be used e.g.E888,
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.
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.
12 Installation MoTeC
CAN (Controller Area Network) Communications
This protocol enables communication between all devices connected to the
same bus. The CAN bus allows communicating at high speeds. The C185 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/E816, VIM
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 Global positioning system: GPS
Note: The C185 can communicate with devices for which it has the
appropriate communications protocol defined. For other devices, users can
define their own custom communication settings.
MoTeC Installation 13
Connecting Devices Examples
Device
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
Connect via Remarks
Inputs:
The appropriate
input type depends
on the sensor type
Inputs:
Switch input
Alternatively Digital
or Analogue Voltage
inputs can be used
Outputs:
Auxiliary output
Communications:
CAN
Inputs:
Analogue Voltage or
Analogue
Temperature input
Communications:
CAN
MoTeC supplies
datasheets with wiring
details for all sensors via
the website
Wire between C185 input
and C185 0V.
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
Connect via E888 or
VIM/SVIM
ECU M4, M48, M8
ECU 'hundred series':
(M400, M600, M800,
M880), M1
Telemetry
Communications:
RS232
Communications:
CAN
Communications:
RS232
Uses the Telemetry
feature of the ECU to send
data to the C185
Ensure the ECU and C185
are connected on the
same CAN bus
Wiring is dependent on the
particular telemetry
system; refer to the wiring
details supplied with the
telemetry system
14 Installation MoTeC
Software Installation
C185 Dash Manager Software
C185 Dash Manager software is used for configuration, testing, retrieving the
logged data, and for general management of the C185.
C185 Dash Manager supports configuration of the following connected
devices: VIM, SVIM, E888/E816, SLM.
PC Requirements
C185 Dash Manager runs under Windows XP or Vista operating systems. The
minimum recommended PC specification is a Pentium 90 with 16MB RAM
and an Ethernet port
Installing C185 Dash Manager Software
• Go to the MoTeC website at www.motec.com and navigate to
software/latestreleases/C185 Dash Manager software
OR Locate C185 Dash Manager software on the MoTeC Resource Disc
• Save the selected file in your preferred location (for example desktop)
• When downloading is finished, double click on the file and select run
• Follow the instructions on the InstallShield Wizard
• To start the program after installation, click the C185 Manager icon on the
desktop or click Start > All Programs > MoTeC > C185 > C185 Dash
Manager
Updating C185 Dash Manager Software
• Software updates are available to give 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
i2 data analysis software is used to analyse the logged data that has been
recorded by the C185. 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.
MoTeC 15 Installation
i2 Standard is included, while i2 Pro requires the optional Pro Analysis
upgrade. See C185 Upgrades.
i2 Pro provides advanced mathematics, multiple overlay laps, and unlimited
components, workbooks and worksheets.
Telemetry Monitor Software
The Telemetry Monitor software is used to monitor the optional telemetry link
and allows viewing of live data in various graphical formats such as chart s,
bar graphs and dial gauges. It can also show the vehicle's current track
position on a track map and compare the current vehicle data to reference
data.
Telemetry Monitor software requires the optional Telemetry upgrade. See
C185 Upgrades.
Connecting the C185 to a PC
The C185 connects to the Ethernet port on the PC. This requires a connector
for the standard Ethernet cable in the loom.
The C185 loom #61213 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 Wiring.
PC Communications Setup
To enable PC communications a connection must be setup in the C185 Dash
Manager to match the C185 serial number.
• On the Tools menu click Connection Set t ings an d then click Add
• Click OK to choose IP (Ethernet). This is the only available connection
type
• Enter the C185 serial number
If the PC needs to communicate with more than one C185, repeat the steps.
Only one connection can be active at a time. To switch to a different C185
select the appropriate connection and click Make Active.
Network Connection
Optionally, the C185 can be connected to a network. This allows for any
PC on the network to communicate with the C185.
For more information on IP addresses see PC Connection - IP Address.
16 Configuration MoTeC
Configuration
All aspects of the C185 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 configuration file on the PC. When starting
C185 Dash Manager 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 C185 configuration are performed ‘Offline’, i.e. without the
PC communicating with the C185. The changes are saved in the configuration
file on the PC. The file must be sent to the C185 before the changes take
effect. See Operation.
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 File
From the File menu the following option 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 after a new configuration has been defined, it should be saved with
a meaningful name.
• Save as can be used to create a copy of an existing configuration file by
giving it a new name.
• 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.
MoTeC Configuration 17
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
C185. For example an input pin may feed a channel called ‘Fuel Pressure’.
This channel may then be used by another system, such as the Display
System or Data Logging systems.
The C185 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 C185 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.
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 MoTeC
Cha nnel Co nnecti on Example
Sensors
Analogue
Inputs
Speed
Inputs
ECU
CAN
Comms
Data
Logging
System
Display
System
Alarm
System
RS232
Comms
Gear
Detection
Loggi ng
Memory
LCD
Display
Telemetry
Auxiliary
Outputs
Fuel Pressure
Oil Pressure
Wheel Speed Front
Wheel Speed Rear
Engine R PM
larm Warning Light
Engine Tem perature
Gear
Warning
Light
Channels
MoTeC Configuration 19
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
20 Configuration MoTeC
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 asso ciated
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.
Tip: To expand a category click on the plus sign (+) next to the category
name.
MoTeC 21 Configuration
Search Method
This method lists all channels in alphabetical order and allows a channel to be
found either by typing the first few letters of any word in the channel name, or
by scrolling through the list.
Note: The words may be typed out of order so that ‘Engine Oil Temp’ could
be found by typing "temp eng oil" or "oil t eng" or "e o t”
T
his method is most useful when selecting a channel from the available
channels. For example, if ‘Engine Temperature’ has been assigned to an
input pin, it can be easily located in the Search list, since this list normally
contains 50 to 100 items.
only
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