CAN bus data loggers

CAN bus data loggers for every stage of the programme.

Six standalone loggers from one classic CAN channel to four CAN FD networks with LIN, analogue, GNSS and motion, recorded on one timebase and delivered as open MDF4 files. Fit one to the vehicle, collect the data or let it upload to your cloud.

Which logger do you need?

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Data loggers 6

Influx Technology has designed and tested CAN bus data loggers in the United Kingdom since 1999. The range runs from a £449 vehicle black box for one CAN bus to REXGEN Pro, a connected edge platform developed in alignment with UNECE R155 cyber security principles, and every logger records to open ASAM MDF4 files through software that ships free with the hardware, so your data works in any toolchain.

Full comparison
Data logger
REXGEN 1

REXGEN 1

The essential standalone CAN logger.

  • 1× CAN 2.0
  • 8 GB onboard
  • USB, J2534 pass-through
  • IP65
£449inc VAT Configure and buy In stock Spec sheet (PDF)
REXGEN 1Key specs
CAN channels
1× CAN 2.0A/B
Storage
8 GB eMMC
PC connection
Micro USB 2.0, J2534 pass-through
Power
Wake-On-CAN, deep sleep under 2 mA
Operating temperature
-40 to +85 °C
Connector
D-Sub 9
Enclosure
IP65
SKU
INF2109.01
Download full spec sheet All specifications on the product page
Data logger
REXGEN 2

Log CAN and CAN FD in the vehicle.

  • 2× CAN FD, 1× LIN
  • 2 analogue, 2 digital inputs
  • IMU GNSS version
  • 16 or 32 GB onboard
£599inc VAT Configure and buy In stock Spec sheet (PDF)
REXGEN 2Key specs
CAN channels
2× CAN 2.0 or CAN FD
LIN
1×
Inputs
2 analogue, 2 digital
Storage
16 GB, or 32 GB on the IMU GNSS version
GNSS
IMU GNSS version, u-blox, up to 18 Hz
Motion
IMU GNSS version, gyro 1 kHz and accelerometer
PC connection
Micro USB 2.0, J2534 pass-through
Power
Wake-On-CAN, silent mode
Connector
2× D-Sub 9
SKU
INF2110, IMU GNSS INF2112
Download full spec sheet All specifications on the product page
Data logger
REXGEN Air

Send fleet data to the cloud.

  • 2 or 4× CAN FD, 1× LIN
  • LTE upload to the cloud
  • GNSS and 6-axis IMU included
  • 8 to 32 GB onboard
Storage8GB £1,04916GB £1,14932GB £1,299
CAN Channels2 CAN £1,0494 CAN £1,199
From £1,049inc VAT Configure and buy In stock Spec sheet (PDF)
REXGEN AirKey specs
CAN channels
2× or 4× CAN 2.0 or CAN FD
LIN
1×
Cellular
LTE Cat 1, multi-band
GNSS
u-blox 30 Hz, 72-channel
Motion
6-axis, accelerometer and gyroscope
Storage
8, 16 or 32 GB eMMC
Digital I/O
2× I/O and relay driver
Power
Wake-On-CAN, Wake-On-Movement
Connector
Molex Mini50 24-pin
SKU
INF2116
Download full spec sheet All specifications on the product page
Data logger
REXGEN Pro

REXGEN Pro

Log, compute and gateway at the edge.

  • Up to 4× CAN FD, 1× LIN
  • LTE and Wi-Fi
  • Edge compute and gateway
  • IP65 aluminium
On request Request a quote Built to order Spec sheet (PDF)
REXGEN ProKey specs
CAN channels
Up to 4× CAN 2.0 or CAN FD
LIN
1×
Cellular
LTE Cat 4
Wi-Fi
802.11 b/g/n
GNSS
Multi-constellation
Motion
6-axis, up to 1 kHz
Storage
32 GB eMMC
Diagnostics
UDS and XCP
Security
UNECE R155-aligned
Enclosure
IP65 aluminium
SKU
INF2118
Download full spec sheet All specifications on the product page
Data logger
REBEL CT

REBEL CT

Multi-network logging with sensor inputs.

  • 2× CAN 2.0, 2× CAN FD, 2× LIN
  • 4 analogue inputs, 3 digital I/O
  • XCP, CCP, UDS
  • IP65 aluminium
£1,849inc VAT Configure and buy Ask about lead time Spec sheet (PDF)
REBEL CTKey specs
CAN channels
2× CAN 2.0 and 2× CAN FD
LIN
2×
Analogue inputs
4×
Digital I/O
3×
Storage
SD card, removable
Protocols
XCP, CCP, UDS, OBD, J1939
Cellular
Optional, configured at order
PC connection
Isolated USB Type B
Connector
D-Sub 25
SKU
INF2105.01P
Download full spec sheet All specifications on the product page
Data logger
REBEL LT

REBEL LT

Diagnostics and logging on one timebase.

  • 2× CAN 2.0, 1× K-Line
  • 4 analogue inputs, digital I/O
  • UDS requests in the file
  • 32 GB SD card
£1,249inc VAT Configure and buy In stock Spec sheet (PDF)
REBEL LTKey specs
CAN channels
2× CAN 2.0
K-Line
1×, no LIN
Analogue inputs
4×
Digital I/O
3×
Storage
32 GB SDHC card, removable
Protocols
UDS, OBD, K-Line
PC connection
Isolated USB Type B
Connector
D-Sub 25
Enclosure
IP20
SKU
INF2101
Download full spec sheet All specifications on the product page

Nothing in this family matches those filters. Clear a filter, or ask an engineer.

How to choose

How to choose a CAN bus data logger

Start with the job, then check the networks, the sensors and how the data gets back to you.

One bus, left alone for months

REXGEN 1. It records classic CAN to soldered eMMC, loops over the oldest file when full and sleeps at under 2 mA.

View REXGEN 1

CAN FD, LIN and sensors on a small unit

REXGEN 2. Two CAN FD channels, a LIN bus and four inputs at 164 g, with an IMU GNSS version that adds GNSS, accelerometer and gyro.

View REXGEN 2

Data without site visits

REXGEN Air. Up to four CAN FD channels uploading over LTE to the managed web app or your own AWS S3 bucket.

View REXGEN Air

Diagnostics on the logger, out of the box

REBEL LT. UDS, XCP, CCP, OBD and J1939 run on the device that records the bus, analysed in DIALOG.

View REBEL LT

Diagnostics plus CAN FD and LIN in a metal enclosure

REBEL CT. Two CAN 2.0, two CAN FD and two LIN buses on one clock, IP65 aluminium, CAN 2.0 gateway whilst logging.

View REBEL CT

The whole programme on one platform

REXGEN Pro. Edge processing, LTE and Wi-Fi, a hardware secure element and signed over-the-air updates, built to order.

View REXGEN Pro

How many networks, and is any of them CAN FD?

REXGEN 1 and REBEL LT record classic CAN 2.0 only. REXGEN 2, REXGEN Air and REXGEN Pro record CAN FD at up to 8 Mbit/s alongside classic CAN, and REBEL CT records two CAN 2.0 and two CAN FD buses. Count the buses you need on one timebase: one (REXGEN 1), two (REXGEN 2, REBEL LT), up to four (REXGEN Air, REXGEN Pro, REBEL CT). REXGEN 2, REXGEN Air, REXGEN Pro and REBEL CT also record LIN, and REBEL LT records K-Line. If the vehicle carries CAN FD now, or will within the life of the programme, choose a CAN FD model. Our guide explains the difference between CAN and CAN FD.

Sensors as well as networks?

REXGEN 2 carries two analogue and two digital inputs. REBEL LT and REBEL CT carry four analogue inputs and three digital I/O. For thermocouples, more analogue channels or switched outputs, stack K-Series modules on the same CAN bus: K-TC, K-BOX and K-AN8 put their readings on the bus, so any logger records them on its own timeline. See the instrumentation range.

How will you get the data off?

USB on REXGEN 1, REXGEN 2, REBEL LT and REBEL CT. A removable SD card on REBEL LT and REBEL CT. LTE upload on REXGEN Air and REXGEN Pro, with Wi-Fi and optional Ethernet on REXGEN Pro. REXGEN 1 and REXGEN 2 also stream live over USB as a J2534 pass-through interface, so the field logger doubles as the bench interface.

Will it live on the vehicle?

Every logger wakes on CAN traffic and sleeps when the bus goes quiet. REXGEN 2 in its IMU GNSS version, REXGEN Air and REXGEN Pro also wake on movement. REXGEN 1, REXGEN 2, REXGEN Pro and REBEL CT are IP65. REXGEN Air is IP50, so cover it in wet locations. REBEL LT is a bench and cabin unit at IP20.

J1939, OBD2 and diagnostics

Every logger decodes SAE J1939, and REXGEN 1 and REXGEN 2 trigger on DM1 fault counters. OBD2 requests run on REXGEN Air, REXGEN Pro, REBEL LT and REBEL CT. UDS, XCP and CCP run on REBEL LT and REBEL CT, and UDS and XCP on REXGEN Pro, so the request and the response land in the same file as the bus traffic. Our guide to CCP and XCP explains what the calibration protocols do.

Software and file formats

REXGEN loggers use REXDESK, free with every unit, exporting MDF4, CSV, MATLAB, ASC, BLF and TRC, with the open source REXLIBRARY toolkit for file conversion in your own code. REBEL loggers ship with DIALOG Configurator, free, exporting CSV and MDF4; the licensed versions, DIALOG Standard and DIALOG Plus, add live viewing and analysis. Load a DBC file in either and raw frames become named signals. Every row side by side: compare data loggers.

Free UK delivery over £499, excluding bulk orders. 12 month warranty with every logger. Need more than 10 units? Request volume pricing.

Where they go to work

Built for the programmes that run on CAN

Automotive

REBEL CT leads multi-bus vehicle work, with REXGEN 2 for compact fixed installs with IMU and GNSS and REXGEN Air for long-duration road load capture over LTE.

Read more

Electric vehicles

REXGEN 2 leads EV bench and vehicle work, with REBEL CT for chassis-side development across CAN, CAN FD and LIN and REXGEN Pro for on-vehicle edge compute.

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Commercial vehicles

REXGEN Air leads permanent installs across operating fleets, with REXGEN Pro for on-vehicle edge applications and REBEL LT for single-vehicle J1939 work.

Read more

Rail and transit

REXGEN 2 in its IMU GNSS version leads rolling-stock multi-bus acquisition, with REXGEN Air for permanent installs and long-term fleet condition monitoring.

Read more

Mining and heavy industry

REXGEN 2 leads as the black box for haul trucks and heavy equipment, with REXGEN 1 for single-CAN evidence and REXGEN Air for fleets that need data off the asset.

Read more

Agriculture and off-highway

REXGEN Air leads fleet telemetry, with REXGEN 2 for precision agriculture and autonomy work, REBEL LT for individual machine durability and REXGEN Pro for autonomous platforms.

Read more

Common questions

CAN bus data logger questions, answered

What is a CAN bus data logger and what does it record?

A CAN bus data logger is a small device that sits on a vehicle or machine network and records every frame it sees, with a timestamp, to its own storage. It runs without a PC. Our loggers record CAN and CAN FD, and depending on the model LIN, K-Line, analogue and digital inputs, GNSS position and motion, all on one timebase. Load a DBC file and the raw frames become named signals in REXDESK or DIALOG, exported as MDF4, CSV, MATLAB, ASC, BLF or TRC.

Do I need a standalone logger or a USB CAN interface?

A standalone logger records unattended in the field. A USB interface streams live traffic to a laptop on the bench. REXGEN 1 and REXGEN 2 do both: they log to soldered eMMC on the vehicle and act as a J2534 pass-through interface over micro USB, streaming CAN in real time to your PC tools. REBEL LT and REBEL CT connect over galvanically isolated USB for live viewing in DIALOG while they record.

Which loggers record CAN FD?

REXGEN 2, REXGEN Air and REXGEN Pro record CAN FD at up to 8 Mbit/s alongside classic CAN, and REBEL CT records two CAN 2.0 and two CAN FD buses in ISO and non-ISO frames. REXGEN 1 and REBEL LT are classic CAN 2.0 loggers and do not record CAN FD frames. If the vehicle carries CAN FD now, or will within the life of the programme, choose a CAN FD model; the difference is explained in our CAN vs CAN FD guide.

Can I log through the OBD2 port, and do I need a DBC file?

Yes, where the vehicle exposes its CAN bus on the OBD2 connector. Every logger records raw frames without a DBC file. To turn frames into engineering values you load a DBC into REXDESK or DIALOG, decode SAE J1939, which every logger supports, or use OBD2 requests on REXGEN Air, REXGEN Pro, REBEL LT and REBEL CT. Our DBC guide in the learning hub explains what the file contains and how to build one.

How much data will a logger store, and what happens when it is full?

REXGEN 1 has 8 GB of soldered eMMC, REXGEN 2 16 GB (IMU GNSS version 16 or 32 GB), REXGEN Air up to 32 GB and REXGEN Pro 32 GB. REBEL LT ships with a 32 GB SD card and REBEL CT with 64 GB, 128 GB supported. When storage fills, REXGEN loggers overwrite the oldest file first so recording never stops; REBEL loggers log cyclically to the card. How long that lasts depends on bus load and filtering, so ask us with your channel count and bit rates.

Will a logger drain the vehicle battery?

Not in normal use. Every logger sleeps when the bus goes quiet and wakes on CAN traffic. REXGEN 1 and REXGEN 2 draw under 17 mA asleep (IMU GNSS version under 25 mA) and under 2 mA in deep sleep, REXGEN Air under 21 mA and under 10 mA in deep sleep and REXGEN Pro under 15 mA. REBEL LT powers down when both CAN buses go idle and REBEL CT drops into low power sleep, about 80 mA, with a deep sleep of about 3 mA.

Which file formats can I export?

REXGEN loggers record to their own RXD format and REXDESK, free with every unit, converts it to ASAM MDF4, CSV, MATLAB, ASC, BLF and TRC; REXGEN Air and REXGEN Pro add Apache Parquet for cloud pipelines. REBEL loggers export MDF4, MDF, BLF, MAT and CSV through DIALOG. Our open source REXLIBRARY toolkit handles RXD conversion in your own code, so nothing is locked to a viewer or a licence.

Can I collect data without visiting the vehicle?

Yes, with REXGEN Air or REXGEN Pro. Both record locally to eMMC first, then upload over LTE at a sync rate you set: REXGEN Air to the managed web app or your own AWS S3 bucket, REXGEN Pro to your own cloud or enterprise platform. Both take configuration and firmware updates over the air. REXGEN Pro adds Wi-Fi and optional Ethernet. REBEL CT can be specified with cellular at order and REBEL LT with 4G LTE, for remote collection.

Can the logger run diagnostics as well as record?

REBEL LT and REBEL CT run UDS to ISO 14229, XCP on CAN, CCP, OBD and SAE J1939 on the same device that records the bus, so the request and the response land in one file. REXGEN Pro adds UDS and XCP on CAN. Every logger in the range decodes SAE J1939, and REXGEN 1 and REXGEN 2 trigger on J1939 DM1 fault counters. Our learning hub guides to UDS and to CCP and XCP explain what each protocol does.

What software do I need, and what does it cost?

REXGEN loggers are configured, downloaded and converted with REXDESK, free with every unit and with no per-seat charges or annual renewals, plus the open source REXLIBRARY toolkit for file conversion in your own code. REBEL loggers ship with DIALOG Configurator, free, which sets the logger up and exports CSV or MDF4. The licensed versions, DIALOG Standard and DIALOG Plus, add the live viewer, graphical analysis and the post analysis oscilloscope.

Learn the basics

CAN bus and vehicle networking, explained

Visit the learning hub
On-board diagnostics: what OBD and OBD2 actually do

Guide

On-board diagnostics: what OBD and OBD2 actually do

What OBD and OBD2 really do behind the 16-pin port. The protocol that rides on CAN, the modes and PIDs it uses and how...

Read article
Understanding CCP and XCP: reading and tuning an ECU

Guide

Understanding CCP and XCP: reading and tuning an ECU

How tools read and tune a running ECU. CCP and XCP, the A2L file and the difference between polling and DAQ measurement.

Read article
What is CANopen? CAN bus with a common language

Guide

What is CANopen? CAN bus with a common language

CAN with a common language. The object dictionary, node IDs, PDO versus SDO and the NMT states, without the standards jargon.

Read article
  • Designed and tested in the UKEngineering and support in Bedfordshire, Bulgaria, China and India.
  • Free UK delivery over £499Excluding bulk orders. Worldwide shipping quoted at checkout.
  • 12 month warrantyOn all Influx Technology hardware.
  • Faulty items replaced within 30 daysRefund or replacement, return shipping covered.

Prices in GBP, including VAT. Orders over 10 units are quoted individually.

Talk to us

Not sure which logger fits the job?

Tell us about the vehicle, the networks and the signals you need. An engineer will scope the right setup with you.

Speak to an engineer Compare data loggers