CANdo CAN Bus Analyser Netronics Ltd.

  CANdo AUTO Module    (P/N NET50022)
The CANdo AUTO Module is a rugged, multi-purpose CAN bus module with a USB port, two precision analogue inputs & a DC power supply input. The module is capable of operating either connected to a PC, or in a standalone mode powered from a 12 or 24V DC supply, such as a vehicle battery. The module maybe used as an interface between a PC & a CAN bus, or between analogue sensors & a CAN bus, in standalone mode. In addition, the module maybe programmed to transmit fixed, periodic CAN messages automatically on power up.
CANdo AUTO Module
The CANdo AUTO Module is housed in a compact, waterproof & vibration proof ABS plastic enclosure. A waterproof mini USB connector, with integral sealing cap, provides the connection to a PC. The CAN bus & power supply connections are provided by colour coded wires, sheathed by a corrugated plastic conduit.

CANdo AUTO Module Outline Specification
  • Fully compliant with the CAN 2.0A & CAN 2.0B Bosch specifications
  • ISO 11898-2 (High speed CAN) physical interface
  • Module powered by USB or DC supply in the range 8-32V
  • DC supply input protected against 100V transients & supply reversal
  • 2 precision analogue inputs each with a measuring range 0-32V
  • Rugged waterproof enclosure sealed to IP66
  • 300V galvanic isolation barrier between the CAN bus & USB/Analogue/Power connections
  • Rugged CAN transceiver capable of withstanding 40V between CAN bus lines & ground
  • CAN baud rate adjustable from 12.5k to 1M baud
  • Recognises CAN data, remote & error frames
  • All CAN frames timestamped
    • 25.6us resolution
    • 20ms + 100ppm accuracy
  • Reports CAN bus status & internal status
  • Calculates average CAN bus load every second
  • 3 modes of CAN bus operation - normal, listen only & loopback
  • Supports low level CAN message filtering
  • Fully compatible with higher level protocols such as J1939, DeviceNet & CANopen
  • USB v1.1, 2.0 & 3.0 compatible
  • Internal firmware upgradeable from PC over USB
  • Complies with the requirements of the EU Directive 2014/30/EU on EMC
  • RoHS compliant
  • FREE CANdo AUTO Configuration software
  • FREE CANdo Application software
CANdo AUTO Module Block Diagram

CANdo AUTO Module Block Diagram

Click on the link below to download the CANdo AUTO Module datasheet.

CANdo AUTO Module DatasheetCANdo AUTO Module Datasheet

CANdo AUTO Configuration

For standalone operation, the CANdo AUTO Module must first configured from a PC, using either the CANdo AUTO Configuration software, or via the CANdo SDK API. The CANdo AUTO Configuraton software allows the two analogue inputs to be configured to sample the input voltages & insert the sampled data, after appropriate scaling, into pre-defined CAN messages. The configuration software also allows the module to be configured to transmit a number of fixed, periodic CAN messages automatically on power up.

CANdo AUTO Configuration - Input View
CANdo AUTO Configuration - Input Setup
CANdo AUTO Configuration - CAN Transmit
CANdo AUTO Configuration - CAN Setup

The configuration is stored within the module in non-volatile memory. Once configured, the module automatically transmits on the CAN bus on power up, according to the set configuration. The validity of the configuration in memory is checked on power up, before transmissions are enabled.

Notes :
  1. The CANdo AUTO Module contains no internal CAN bus termination
  2. The CAN bus must be terminated at either end with a 120 Ohm resistor, although a single 120 Ohm resistor will suffice for short cable lengths (< 2m)
  3. For long CAN networks (>10m) & in noisy environments the use of screened, twisted pair wire is recommended
  4. The CAN bus ground is electrically isolated from the USB & power supply grounds
Customised versions of the CANdo AUTO Module are available upon request. Please use the 'Support' page to request further information about this service & the different options available. An MOQ of 20 off generally applies to all custom orders.

v2.0 v1.5 05/12/23
v3.0 v2.0 24/02/24
Note : All product versions are fully backwardly compatible.

If you would like to update your device with the latest software, please send a request via the 'Support' page.
CANdo Interface  :  CANdoISO Interface  :  CANdoISO Module  :  CANdo Application  :  CANdo SDK
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