TRU COMPONENTS TC-ECAN-U01S USB CAN Bus Analyzer

1. Intended Use

The TRU COMPONENTS TC-ECAN-U01S is a CAN bus analyzer designed to read, send, and monitor data within Controller Area Networks (CAN bus) using the provided analysis software. The product is intended for indoor use only and must be protected from moisture. Using the product for purposes other than those described, or improper use, may lead to product damage, short circuits, fires, or other hazards. The product complies with statutory national and European requirements. Modifications or alterations to the product are prohibited for safety and approval reasons. Users should read the operating instructions carefully and keep them in a safe place. The product should only be passed on to third parties with the operating instructions. All company and product names are trademarks of their respective owners.

2. Delivery Contents

• Converter
• USB cable
• Analyzer software (available for download at www.conrad.com/downloads)
• Operating instructions

3. Latest Product Information

Download the latest product information from www.conrad.com/downloads or scan the QR code. Follow the instructions on the website.

4. Description of Symbols

The following symbols are used on the product or in the text:

⚠ This symbol warns of hazards that can lead to personal injury.

5. Safety Instructions

Read the operating instructions carefully and pay special attention to the safety information. Failure to observe the safety instructions and information for proper use may result in liability for personal injury or property damage, and will invalidate the warranty/guarantee.

5.1 General

• The product is not a toy. Keep it away from children and pets.
• Do not leave packaging material lying around carelessly, as it could become dangerous play material for children.
• If you have questions not answered in this document, contact technical support or other qualified personnel.
• Maintenance, modifications, and repairs must only be carried out by a qualified technician or authorized repair center.

5.2 Handling

Handle the product with care. Impacts, shocks, or drops, even from a low height, can damage the product.

5.3 Operating Environment

• Do not subject the product to mechanical stress.
• Protect the product from extreme temperatures, strong jolts, flammable gases, vapors, and solvents.
• Protect the product from high humidity and moisture.
• Protect the product from direct sunlight.

5.4 Operation

• If you have doubts regarding operation, safety, or connection, consult an expert.
• If safe operation is no longer possible, take the product out of service and protect it from accidental use. Do not attempt to repair the product yourself. Safe operation is not guaranteed if the product:
  • is visibly damaged,
  • no longer functions properly,
  • has been stored for extended periods under unfavorable ambient conditions, or
  • has been subjected to significant transport stresses.

5.5 Connected Devices

Also observe the safety and operating instructions of any other devices connected to the product.

6. Product Overview

6.1 Components

The device features the following components:

• 1. Input Port (DC-IN): Interface for connecting an auxiliary 8-28 V/DC power supply (if needed).
• 2. USB Port (USB): USB connection for data transfer and power supply (5 V/DC, max. 0.5 A).
• 3. Indicator Lights (WORK/PWR): LEDs indicating device status.
• 4. DIP Switch (RES2): 120 Ω resistance switch for the CAN2 channel.
• 5. DIP Switch (RES1): 120 Ω resistance switch for the CAN1 channel.
• 6. CAN Port (CAN2_H): CAN2 high signal line.
• 7. CAN Port (CAN2_G): CAN2 ground connection.
• 8. CAN Port (CAN2_L): CAN2 low signal line.
• 9. CAN Port (CAN1_H): CAN1 high signal line.
• 10. CAN Port (CAN1_G): CAN1 ground connection.
• 11. CAN Port (CAN1_L): CAN1 low signal line.
• 12. Reset Button (Reload): Press and hold for approximately 6 seconds to restore default settings.

A diagram shows the USB CAN bus analyzer with numbered ports and switches, indicating connections for DC-IN, USB, WORK/PWR LED, DIP switches, and CAN ports (CAN2_H, CAN2_G, CAN2_L, CAN1_H, CAN1_G, CAN1_L), and a Reload button.

6.2 Indicator Lights

6.3 Software Interface

The software interface provides the following functions:

• 1. Data Window: Displays received CAN data.
• 2. Data Filter: Allows filtering of data by attributes.
• 3. Device Configuration and Management Interface: Configures and manages CAN network connections.
• 4. Data Transmission Interface: Used to send data to CAN networks.
• 5. Data Storage Controls: Buttons for saving data to a file.
• 6. Data Display Controls: Includes a 'Clear' button to clear displayed data and buffer, and a 'Pause' button to stop data scrolling.
• 7. Error Counter: Displays the total count of transmitting and receiving errors.

Screenshots illustrate the software interface, showing sections for Device Manager, data display, and data transmission.

7. Making Connections

7.1 Connecting to the CAN Network

The CAN network uses a linear topology. After connecting the signal lines to the CAN network, terminate the two farthest bus terminals with resistors to improve communication reliability. This can be done using the built-in 120 Ω resistors on DIP switches RES1 and RES2, or by using external resistors.

Important: For branch connections, ensure branch lengths do not exceed 3 meters.

A diagram illustrates the CAN network topology with nodes (K) and signal lines (CAN_H, CAN_L). It shows the need to connect signal lines to the CAN network and terminal blocks. Another diagram shows how to connect external resistors or use DIP switches for termination.

Precondition: The CAN converter must be disconnected from the computer.

Steps for connecting signal lines: Connect the signal lines (e.g., CAN_H1 and CAN_L1) as shown in the diagram.

Steps for terminating terminals:

1. If using your own resistors: Connect the resistors as shown in the diagram.
2. If using DIP switches: Set DIP switches RES1 and RES2 to the 'ON' position.

Note: Termination with 120 Ω resistors is not required if the network has more than two nodes.

7.2 Connecting to Computer

Connect the product to a computer via USB to analyze CAN network data. The USB connection provides both data transfer and power (5 V/DC, min. 0.5 A).

1. (Optional) Connect a suitable external power supply to the DC-IN input port (8-28 V/DC).
2. Connect the USB cable to the product's USB port and to an available USB port on the computer.

The PWR and WORK indicator lights will illuminate.

8. Receiving CAN Data

8.1 Configuring the Interface

Before receiving and analyzing CAN network data, configure the communication interface and establish a communication channel.

Preconditions:

• The CAN analyzer is connected to the CAN network.
• The CAN analyzer is connected to the computer.

Steps:

1. Open the software.
2. Click the "Device Manager" button.
3. Select the COM port through which the analyzer communicates with the computer (refer to diagram [1]).
4. Click the "Open Device" button to configure a new device (refer to diagram [2]).
5. Set the baud rate for each channel. The set baud rate must match your CAN network's baud rate (refer to diagram [3]).
6. For a custom baud rate, click the "Customize" button to open the custom baud rate window. Enter the desired baud rate and click "Confirm".
7. Click the "Open Channel" button to open the CAN communication channel(s) (refer to diagram [4]).

CAN data will then be displayed in the data window (refer to diagram [5]).

8.2 Controlling the Data Display

Use the software's display controls to manage how received data is shown.

• Pause Scrolling: Click the "Pause" button to stop or resume scrolling of received CAN data in the window.
• Clear Records: Click the "Clear" button to clear CAN data from the data window and the buffer.

8.3 Filtering CAN Records

Filter CAN data by attributes using the data filters:

1. Enter your filter criteria in the text fields (refer to diagram [1]).
2. Select filter criteria from the dropdown lists (refer to diagram [2]).

The data window will then display data matching the specified filter criteria.

9. Sending CAN Data

Use the send interface to send CAN data to the CAN network.

1. Click the "Send Data" button in the main software interface.
2. In the CAN Transmit interface, define the desired values for the CAN frame attributes (refer to diagram).
3. Click the "Send" button to transmit the CAN frame to the CAN network.

Sending errors, if any, will be displayed in the bottom right corner of the main software interface.

10. Saving CAN Data to File

The data recording function allows you to save snapshots of real-time CAN data to a text file (.txt) for record keeping.

• Saving Snapshots: Click the "Save" button to save a snapshot of the currently displayed CAN data to a text file on your computer.
• Recording Real-time Data: Click the "RT Save" button to record real-time CAN data to a text file on your computer. Click "RT Stop" to stop recording.

Important: Do not open the text file while recording real-time data to prevent file corruption.

11. Cleaning and Care

Important:

• Do not use aggressive cleaning agents, rubbing alcohol, or other chemical solutions, as they can damage the housing and cause malfunctions.
• Do not immerse the product in water.

1. Disconnect the product from the power supply.
2. Clean the product with a dry, lint-free cloth.

12. Disposal

This symbol indicates that electrical and electronic equipment placed on the EU market must be disposed of separately from unsorted municipal waste at the end of its service life. Owners of WEEE (Waste from Electrical and Electronic Equipment) must ensure separate disposal. End users must remove batteries, accumulators, and lamps from WEEE before handing them over to a collection point. Distributors are legally obliged to provide free take-back of waste. Conrad offers return options via its branches, collection points, or public/manufacturer-established systems. End users are responsible for deleting personal data from WEEE. Disposal regulations may vary in countries outside Germany.

13. Technical Data