CSS Electronics - CANmod.temp: 4 x Thermocouple-to-CAN [Temperature Sensor]

This thermocouple-to-CAN module produces temperature data from 4 thermocouple sensors and outputs it via CAN bus. The module is 100% standalone - no PC required.

The module supports all thermocouple types (B, E, J, K, N, R, S, T) and can be daisy-chained for 8, 12, 16, ... channels.

You can integrate the module with any CAN bus system - e.g. to provide temperature data for your ECUs or existing CAN hardware.

As an example, you can use the module as an add-on for the CANedge - ideal for e.g. engine dynos, EGT analysis, HVAC monitoring and other temperature telematics use cases.

Probes not included - see suggested suppliers. Optional adapters (dropdown).




The CANmod.temp can be installed standalone in any CAN bus system - including e.g. as an add-on for the CANedge.


Add temperature data to your CAN bus

Need to inject temperature data directly into your CAN bus?

The thermocouple-to-CAN module can be used standalone to inject CAN frames with temperature into your CAN bus system. The data can be consumed by other CAN nodes on the network - e.g. ECUs, cabin displays, CAN loggers or telematics control units (TCU). To ensure compatibility, you can modify the module output bit rate and CAN IDs via the simple config editor. Ideal for use in e.g. automotive development, engine dynos, fleet management, dispute handling and more.

Thermocouple-to-CAN module standalone OEM white label


CAN + temperature data logging & telematics

Need to collect vehicle CAN bus and temperature data via SD/WiFi?

The CANmod.temp can be deployed as an 'add-on' module for the CANedge. Simply configure the CANedge to provide a 5V power out via the 2nd port - and connect the CANmod.temp via the optional adapter cable. This lets you log e.g. vehicle CAN bus data via channel 1 and time-synced temperature data via channel 2. This provides a flexible data logger for exhaust gas temperature (EGT) analysis - or a telematics solution for automotive heating, ventilation, and air conditioning (HVAC) applications.

Thermocouple-to-CAN CANedge add-on WiFi automotive telematics

On-road vehicle temperature telematics

Need to collect vehicle and temperature data via 3G/4G?

The CANedge2 can upload data while on-the-road using e.g. a 3G/4G USB router. You can power the 3G/4G hotspot from the vehicle - or use our DB9-DB9/USB adapter to power both the hotspot and CANmod.temp via the 2nd port of the CANedge2. The uploaded log files can e.g. be visualized in telematics dashboards. Ideal for e.g. 'temperature telematics' use cases like HVAC monitoring, refrigirator tracking for perishable goods, temperature-based alerts, predictive maintenance and more.

Vehicle Telematics CAN Bus Temperature OBD2 Cloud Telematics Dashboard


Daisy-chaining thermocouple modules

Need a larger number of thermocouple channels?

The CANmod.temp is extremely simple to setup and configure. With all data contained in 1 CAN frame, you can quickly daisy-chain several modules to add 8, 12, 16, 20, 24, 30, ... thermocouple channels to your CAN bus (e.g. using DB9-Y-splitters). Every individual thermocouple probes can be independently configured to any type - allowing for complete customization. If you wish to record the data to a CAN bus data logger, you can use the CANedge to easily power a full chain of modules via the 2nd port.

Daisy Chain Thermocouple to CAN bus temperature sensor modules
FunctionalityThe device supports 4 x thermocouples for outputting temperature sensor data via CAN bus
IncludedCANmod.temp module, USB dust cover (thermocouple sensors and mini USB adapter not included)
FirmwareSupports free firmware updates via USB for adding features
ConfigurationConfiguration files based on the popular open source JSON schema concept (similar to the CANedge)
SoftwareFree open source editor tool for easy device configuration (offline/online version available)
SafetyCE, FCC, IC and RoHS certified (see the Docs for certificates)
Warranty1-year warranty
SupportFree, fast & high quality support
SENSOR (temperature) 
ChannelsSupports up to 4 thermocouple sensors/channels (plus ambient temperature via cold-junction)
ModuleProfessional-grade MAX31856MUD+ precision thermocouple converter
Temperature RangeSupports a range of -210°C to +1800°C (depending on thermocouple type)
FormattingThe module conveniently outputs degrees celsius via automated edge linearization
AccuracyLab-grade thermocouple voltage measurement accuracy with cold junction compensation
ResolutionThermocouple temperature measurements are output on CAN at a 1 degC resolution
ProtectionThermocouple inputs are protected against overvoltage conditions up to ±45V
TypesSupports thermocouple types B, E, J, K, N, R, S, T (via configuration)
FilteringLine frequency filtering of 50Hz and 60Hz (via configuration)
Fault DetectionThermocouple fault detection (open thermocouples, over- and undertemperature) is communicated via CAN
Cold Junction±0.7°C (max, -20°C to +85°C) cold-junction accuracy
CAN SignalsThe module communicates temperatures and fault statuses (for a full list, see the Docs or DBC file)
 Thermocouple temperatures: The degree celsius (degC) temperature of each thermocouple probe [5 Hz]
 Ambient temperature: The ambient temperature measured via internal cold-junction [5 Hz]
 Faults: Status of each thermocouple sensor [5 Hz]
Channels1 x CAN channel
ModesThe device can either broadcast the data onto the CAN bus - or provide it on-request
StandardISO 11898: Compliant with CAN (between 5K and 1 Mbit/s baud rates)
IdentifiersCompliant with CAN specifications 2.0A (11-Bit ID) and 2.0B (29-Bit ID)
TerminationTermination can be toggled via switch below DB9 connector
RetransmissionRetransmission of frames that have lost arbitration or been disturbed by errors
Bit RateSelect between standard bit rates (5K to 1M) or use custom bit-timing
Enable/DisableIndividually enable/disable the CAN message
Identifier CustomizationIndividually configure the CAN ID (11-bit or 29-bit)
Push/Poll ModeIndividually configure 'trigger' modes for the CAN messages (push or poll)
FrequencyIndividually configure prescaling of the CAN message frequencies to lower rates
Thermocouple TypeSpecify the thermocouple type for each channel (e.g. Type K, Type J, ...)
Line Noise FilteringSelect rejection of 50 Hz (EU) and its harmonics or 60 Hz (USA) and its harmonics
Input Supply+5V to +24V DC via the DB9 connector (power via pin 1 or pin 9)
Power ConsumptionExtremely low (<1W) - no risk of battery drainage
ProtectionReverse voltage protection on CAN-bus supply
 Transient voltage event protection on supply lines
Enclosure & WeightCompact aluminium enclosure: 52.5 x 70.0 x 24.5 mm (L x W x H) excl. antenna, 90 grams
Connector1 x Standard D-sub 9 (DB9) connector
Pin-OutSee the product manual for the DB9 connector pin-outs
USBStandard mini USB connector for configuration and firmware updates (USB adapter cable not included)
LEDsModule status via 3 external LEDs: Power, CAN bus, Memory
TemperatureOperating temperature (CANmod.temp module): -25degC to +70degC
IP RatingIP Rating 40
MountingModule can be mounted via e.g. rugged double-sided tape, zip-ties or a mounting bracket
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