Intrepid Control Systems'  Vehicle Network Tester (IVNT-02) allows users to connect test low-level physical layer capabilities of onboard controllers connecting to Controller Area Network (CAN).

The IVNT supports low-level, physical layer validation on up to two dual wire CAN networks as well as supporting connection for data monitoring/transmitting on two additional dual wire CAN busses, one single wire CAN bus, one LSFT CAN bus, and up to four local interconnect networks (LIN). In conjunction with the included Vehicle Spy 3 software, the IVNT will test high-level application/diagnostic layer services and functions. The IVNT will run each test and give a Pass/Fail status.

Simple Setup, Detailed Results
The IVNT setup has been designed for ease and simplicity. Connect the controller to CAN High and CAN Low, power the unit, and start the test in the PC application software. After taking these few steps, you will receive a report on the entire system test. Individual tests can be selected and run as well.

Low-Level Tests Include:

• Measure VBATT
• Short HSCAN (H)igh to (L)ow - Measure Voltage of Low
• Short HSCAN H to L - Measure Voltage of High
• -1V offset to HSCAN, 1600pf cap added - Measure Voltage of Low
• -1V offset to HSCAN, 1600pf cap added - Measure Voltage of High
• +1V offset to HSCAN, 1600pf cap added - Measure Voltage of Low
• +1V offset to HSCAN, 1600pf cap added - Measure Voltage of High
• Short HSCAN L to VBATT - Measure Voltage of Low
• Short HSCAN H to VBATT - Measure Voltage of High
• Short HSCAN L to GND - Measure Voltage of Low
• Short HSCAN H to GND - Measure Voltage of High
• Measure HSCAN L relative to V- (Vehicle Ground)
• Measure HSCAN H relative to V-
• Measure HSCAN Resistance
• Set HSCAN Resistance 0Ω, 60Ω, or 120Ω
• Short MSCAN H to L - Measure Voltage of Low
• Short MSCAN H to L - Measure Voltage of High
• -1V offset to MSCAN, 1600pf cap added - Measure Voltage of Low
• -1V offset to MSCAN, 1600pf cap added - Measure Voltage of High
• +1V offset to MSCAN, 1600pf cap added - Measure Voltage of Low
• +1V offset to MSCAN, 1600pf cap added - Measure Voltage of High
• Short MSCAN L to VBATT - Measure Voltage of Low
• Short MSCAN H to VBATT - Measure Voltage of High
• Short MSCAN L to GND - Measure Voltage of Low
• Short MSCAN H to GND - Measure Voltage of High
• Measure MSCAN L relative to V- (Vehicle Ground)
• Measure MSCAN H relative to V-
• Measure MSCAN Resistance
• Set MSCAN Resistance 0Ω, 60Ω, or 120Ω

High-Level Tests (using Vehicle Spy 3 Software):

• Diagnostic Service Command Request
• Diagnostic Service Command Response
• Diagnostic Service Response Data Validation
• Normal Mode Message Timing Accuracy
• Vehicle Network Simulation
• Signal Data Monitoring
• Signal Data Latency Test
• User Configurable Tests

IVNT Pins

IVNT-01 Network Specification

4x CAN Channels

• 2 Dedicated ISO11898 Dual Wire CAN Physical Layer (TJA1040)
• 1 Dedicated ISO11519 Low Speed Fault Tolerant CAN Physical Layer (TJA1054A)
• 1 Dedicated Single Wire CAN Physical Layer GMW3089 / SAE J2411 (MC33897)
• CAN 2.0B Active
• Up to 1 M-Bit Software Selectable Baud Rate for Dual Wire CAN channels(auto baud capable)
• Capable of generating and detecting error frames
• Logic Analysis of CAN Waveform with 25 nanosecond resolution
• Graphical Bit Time / Baud Rate Calculator
• Listen only mode support
• High Speed Mode, Test Tool Resistor, and High Voltage Wakeup support

4x LIN (Local Interconnect Network), ISO9141, Keyword 2000, or K and L Line

• Full support for LIN 1.X, 2.X and J2602
• LIN J2602 / 2.X compatible physical layer
• Software Selectable LIN Master Resistor
• UART Based State Machine
• Initialization Waveforms including Fast Init, Five Baud, and Custom
• Programmable Timing Parameters including Inter-Byte, TX Inter-Frame, RX Inter-Frame and Initialization Waveforms (0.5 ms Resolution)
• Software Selectable Baud Rate
• LIN Bus Monitor Mode identifies errors : Sync Break Error State and Length, Sync Wave Error, Message ID parity, Checksum Error and Transmit Bit Errors.
• LIN Bus Master Mode operates at same time as LIN Bus Monitor
• LIN Bus Slave simulation - with or without an LDF file
• LIN Bus hardware schedule table with support for LIN diagnostics

IVNT neoVI FIRE (PDF)