Typical devices used with c185, Ecus, Sensors – MoTeC C185 User Manual
Page 9: Expanders, Vim / svim
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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.