• Compatible with any high speed CAN bus (2.0A, 2.0B)
• Fully configure CAN IDs, bit rate and message frequency
• Daisy-chain multiple modules for 8, 12, 16, ... channels
• Power at 5-26 V DC via standard DB9 adapter cables
• Optionally record the data via any CAN interface/logger/...
• Example: Use as add-on for the CANedge (power via 2nd port)
• DBC file included for easy decoding to human-readable form
• White label e.g. for inclusion in your production

The CANmod.temp module lets you connect up to 4 thermocouple probes (of configurable type) and output the temperature data via configurable CAN frames into any CAN bus

You can install the CANmod.temp 'standalone' in any CAN system (cars, trucks, ships, ...) to inject configurable CAN frames with temperature data into the existing CAN traffic

The CANmod.temp offers vast functionality and pro specs - yet it is extremely compact, measuring only 7 x 2 x 5 CM and weighing just 80G

The CANmod.temp module can e.g. be used as a plug & play add-on for the CANedge (powered via 2nd port) - letting you combine CAN/LIN data with timesynced temperature data

You can also log 2 x CAN/LIN with a CANedge along with data from the CANmod.temp, by e.g. utilizing a DB9 Y-splitter to connect both devices to one of the bus networks

If you deploy the CANmod.temp to output data directly into your CAN bus, the data can e.g. be used by other ECUs on the network

The CANmod.temp can be configured via the USB connector using our online/offline config editor tool (or a simple JSON text editor)

You can easily mix and daisy chain multiple CANmod modules, thus adding different sensor types and/or more channels

The device lets you output temperature signals in 1 CAN frame at 1 degC resolution or in 2 CAN frames at 0.01 degC resolution

 

Example: Log/stream sensor data

The CANmod.temp is often used as an 'add-on' for the CANedge. This setup lets you record e.g. vehicle data via Channel 1 and temperature data via Channel 2. The data can be easily DBC decoded via e.g. the asammdf GUI, Python or MATLAB.

You can also stream the sensor data in real-time via USB using SavvyCAN or Python to view raw/decoded data (e.g. via plots) - ideal for validating your setup pre-deployment or for lab testing.

 

Specifications

GENERAL

• Functionality: The device supports 4 x thermocouples for outputting temperature sensor data via CAN bus and/or USB
• Included: CANmod.temp module, USB dust cover (thermocouple sensors and mini USB adapter not included)
• Firmware: Supports free firmware updates via USB for adding features
• Configuration: Configuration files based on the popular open source JSON schema concept (similar to the CANedge)
• Software: Free open source editor tool for easy device configuration (offline/online version available)
• Safety: CE, FCC, IC and RoHS certified (see the Docs for certificates)

SENSOR (temperature)

• Channels: Supports up to 4 thermocouple sensors/channels (plus ambient temperature via cold-junction)
• Module: Professional-grade MAX31856MUD+ precision thermocouple converter
• Temperature Range: Supports a range of -210°C to +1800°C (depending on thermocouple type)
• Formatting: The module conveniently outputs degrees celsius via automated edge linearization
• Accuracy: Lab-grade thermocouple voltage measurement accuracy with cold junction compensation
• Resolution:
  • 1 degC resolution (in 1 CAN frame) and/or 0.01 degC resolution (in 2 CAN frames)
  • Note: The 0.01 degC resolution typically exceeds the practical probe accuracy
• Protection: Thermocouple inputs are protected against overvoltage conditions up to ±45V
• Types: Supports thermocouple types B, E, J, K, N, R, S, T (via configuration)
• Filtering: Line frequency filtering of 50Hz and 60Hz (via configuration)
• Fault Detection: Thermocouple 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
• Isolation: When measuring from conductive surfaces (e.g. metal), isolated thermocouple probes must be used

DATA PARAMETERS

• CAN Signals:
  • The 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]

CAN BUS

• Channels: 1 x CAN channel
• Modes: The device can either broadcast the data onto the CAN bus - or provide it on-request
• Standard: ISO 11898: Compliant with CAN (between 5K and 1 Mbit/s baud rates)
• Identifiers: Compliant with CAN specifications 2.0A (11-Bit ID) and 2.0B (29-Bit ID)
• Termination: Termination can be toggled via switch below DB9 connector
• Retransmission: Retransmission of frames that have lost arbitration or been disturbed by errors
• Transceiver Protection:
  • Protection: +/- 25kV HBM ESD, +/-12kV IEC ESD, +/-14 V bus fault, short circuit
  • Common mode input voltage: +/-12V
  • TXD dominant timeout (prevents network blocking in the event of a failure)

CONFIGURATION

• Bit Rate: Select between standard bit rates (5K to 1M) or use custom bit-timing
• Enable/Disable: Individually enable/disable the CAN message
• Identifier Customization: Individually configure the CAN ID (11-bit or 29-bit)
• Push/Poll Mode: Individually configure 'trigger' modes for the CAN messages (push or poll)
• Frequency: Individually configure prescaling of the CAN message frequencies to lower rates
• Thermocouple Type: Specify the thermocouple type for each channel (e.g. Type K, Type J, ...)
• Line Noise Filtering: Select rejection of 50 Hz (EU) and its harmonics or 60 Hz (USA) and its harmonics

ELECTRICAL

• Input Supply:
  • +5V to +26V DC via the DB9 connector (standalone/add-on mode) or
  • Alternatively power via USB (for updating firmware/config or for streaming data in real-time)
• Power Consumption: Extremely low (<1W) - no risk of battery drainage
• Protection:
  • Reverse voltage protection on CAN-bus supply
  • Transient voltage event protection on supply lines

MECHANICAL

• Enclosure & Weight: Compact aluminium enclosure: 65 x 48 x 24 mm (W x L x H excl. flanges & connectors), 80 grams
• Connector (Front): 1 x Standard D-sub 9 (DB9) connector
• Connector (Back): 4 x miniature thermocouple female connectors
• Pin-Out: See the product manual for the DB9 connector pin-outs
• USB: Standard mini USB connector for config/firmware updates and streaming (USB cable not included)
• LEDs: Module status via 3 external LEDs: Power, CAN bus, Memory
• Temperature: Operating temperature (CANmod.temp module): -25degC to +70degC
• IP Rating: IP40
• Mounting: Module can be mounted via e.g. velcro strips, zip-ties or a mounting kit

Use Cases

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.

 

CAN + temperature data logging & telematics

On-road vehicle temperature telematics

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

The CANedge3 lets you record CAN/LIN data from your vehicle along with CAN data from the CANmod.temp powered via the 2nd port. The log files can be uploaded via 3G/4G to your own server, where the log files can e.g. be visualized in telematics dashboards. Ideal for 'temperature telematics' use cases like HVAC monitoring, refrigirator tracking for perishable goods, temperature-based alerts, predictive maintenance and more.

 

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.
 

Option

Selct thermocouple probes

• 4 x thermocouple probes [ type K]

Select DB9 adapter cable

• DB9-DB9/DB9 - connect to CANedge
• DB9-DB9 (5M) - connect to CANedge
• OBD2 adapter
• J1939 adapter
• Generic adapter
• M12 5-pin adapter
• CAT adapter

Select mounting

• 3M velcro strips x 4
• Mounting kit

Select USB adapter

• Mini USB to USB adapter cable, 100CM

Note: