No Internal Termination TestCases

GMW14241 Dual Wire CAN

Test Name

Test Description

Observation

4.1.1.1 Recessive Output Voltage Levels

To Measure the absolute and differential voltage levels of the CANH and CANL line and the common mode bus voltage VCM for recessive state using a battery voltage of 14 V.

Observe RecVCanH,RecVCanL , RecVdiff, RecVcm  Signals for Recessive OutputVoltageLevels.

Acceptance Criteria:

                             MIN                  MAX

RecVCanH -->         2.0V                 3.0V

RecVCanL  -->         2.0V                 3.0V

RecVdiff    -->       -120mv            +12mv

RecVcm     -->        2.25V                2.75V

 

4.1.1.2 Dominant Output Voltage Levels

Measure the CAN bus output voltage levels for dominant state.

 

4.1.1.2 Domnt OutPut Vtg Lvl TstCase1

To Measure the absolute and differential voltage levels of the CANH and CANL line and the common mode bus voltage VCM for Dominant state using a battery voltage of 14 V.

Observe DomVCanH,DomVCanL, DomVdiff, DomVcm  Signals

Acceptance Criteria:

                             MIN                 MAX

DomVCanH -->      2.75V                4.5V

DomVCanL  -->      0.5V                2.25V

DomVdiff    -->      1.5V                  3.0V

DomVcm     -->      2.1V                  2.9V

4.1.1.2 Domnt OutPut Vtg Lvl TstCase2

To Measure the absolute and differential voltage levels of the CANH and CANL line and the common mode bus voltage VCM for Dominant state using a battery voltage of 14 V with Rx180Ω.

Observe  DomVCanH,DomVCanL, DomVdiff, DomVcm  Signals

Acceptance Criteria:

                          MIN                MAX

DomVCanH -->      2.75V                4.5V

DomVCanL  -->      0.5V                2.25V

DomVdiff    -->      1.4V                  3.0V

DomVcm     -->      2.1V                  2.9V

4.1.4.1 Internal Resistance Of CANH and CANL

To measure the Internal Resistance of CANH and CANL

 

4.1.4.1.1  Intrnl Resistance Of CANH Scope1 U -2V

To measure the Internal Resistance of CANH,When the voltage level of U at -2V

Observe RinCanH, RinCanL, deltaRin Signals

Acceptance Criteria:

                             MIN                MAX

RinCanH -->            5kΩ                  50kΩ  

RinCanL  -->            5kΩ                  50kΩ  

deltaRin  -->           0                        3%

4.1.4.1.1  Intrnl Resistance Of CANH Scope1 U 7V

To measure the Internal Resistance of CANH,When the voltage level of U at 7V

Observe RinCanH, RinCanL, deltaRin Signals

Acceptance Criteria:

                            MIN                MAX

RinCanH -->            5kΩ                  50kΩ  

RinCanL  -->            5kΩ                  50kΩ  

deltaRin  -->           0                        3%

4.1.4.1.1  Intrnl Resistance Of CANL Scope1 U -2V

To measure the Internal Resistance of CANL,When the voltage level of U at -2V

Observe RinCanH, RinCanL, deltaRin Signals

Acceptance Criteria:

                                   MIN                MAX

RinCanH -->            5kΩ                  50kΩ  

RinCanL  -->            5kΩ                  50kΩ  

deltaRin  -->           0                        3%

4.1.4.1.1  Intrnl Resistance Of CANL Scope1 U 7V

To measure the Internal Resistance of CANL,When the voltage level of U at 7V

Observe RinCanH, RinCanL, deltaRin Signals

Acceptance Criteria:

                             MIN                MAX

RinCanH -->            5kΩ                  50kΩ  

RinCanL  -->            5kΩ                  50kΩ  

deltaRin  -->           0                        3%

4.1.4.1.2  Intrnl Resistance Of CANH Scope2 U -2V

Powersupply is interrupted,Measure the InternalResistance of CANH,When the voltage level of U at -2V,

Observe RinCanH, RinCanL

Acceptance Criteria:

RinCanH  >= 5kΩ          

RinCanL   >= 5kΩ

4.1.4.1.2  Intrnl Resistance Of CANH Scope2 U 7V

Powersupply is interrupted,Measure the InternalResistance of CANH,When the voltage level of U at 7V,

Observe RinCanH, RinCanL

Acceptance Criteria:

RinCanH  >= 5kΩ          

RinCanL   >= 5kΩ

4.1.4.1.2  Intrnl Resistance Of CANL Scope2 U -2V

Powersupply is interrupted,Measure the InternalResistance of CANL,When the voltage level of U at -2V,

Observe RinCanH, RinCanL

Acceptance Criteria:

RinCanH  >= 5kΩ          

RinCanL   >= 5kΩ

4.1.4.1.2  Intrnl Resistance Of CANL Scope2 U 7V

Powersupply is interrupted,Measure the InternalResistance of CANL,When the voltage level of U at 7V,

Observe RinCanH, RinCanL

Acceptance Criteria:

RinCanH  >= 5kΩ          

RinCanL   >= 5kΩ  

4.1.4.1.3  Intrnl Resistance Of CANH Scope3

Ground is interrupted,Measure the output leakage current of the DUT between CANH and ground, and CANL and ground. Calculate Rin_CAN_H and Rin_CAN_L

Observe RinCanH, RinCanL,IleakCanH,IleakCanL

Acceptance Criteria:

RinCanH  >= 5kΩ          

RinCanL   >= 5kΩ    

IleakCanH

IleakCanL

4.1.4.1.3  Intrnl Resistance Of CANL Scope3

Ground is interrupted,Measure the output leakage current of the DUT between CANH and ground, and CANL and ground. Calculate Rin_CAN_H and Rin_CAN_L

Observe RinCanH, RinCanL,IleakCanH,IleakCanL

Acceptance Criteria:

RinCanH  >= 5kΩ          

RinCanL   >= 5kΩ    

IleakCanH

IleakCanL

4.1.4.2 Internal Differential Resistor

To Measure the internal differential resistance of the DUT. Measure V and calculate Rdiff from tandard formula.

Observe Rdiff value

Acceptance Criteria:

                MIN                   MAX

Rdiff        10kΩ                 100kΩ

4.1.5 Device Capacitance

To Measure the input and differential capacitance of the DUT

Note: The capacitance parameters Cin & Cdiff measured by MxPLT include the capacitance of the harness.

To compensate for the harness capacitance from the MxPLT measurements, see here.

Observe Cin,Cdiff values

Acceptance Criteria:

40pF <= CinCanH <=150pF

40pF <= CinCanL <=150pF

0pF <= Cdiff <=90pF

Recessive Input Threshold

To Measure the recessive input threshold of the DUT

 

Rec InPut Thrshld 6.5V

To Measure the recessive input threshold of the DUT,when the Voltage value of U at 6.5V

Acceptance Criteria:

Observe the DUT is not allowed to stop the transmission of its frames

Rec InPut Thrshld -2V

To Measure the recessive input threshold of the DUT,when the Voltage value of U at -2V

Acceptance Criteria:

Observe the DUT is not allowed to stop the transmission of its frames

Dominant Input Threshold

To Measure the dominant input threshold of the DUT

 

Domnt InPut Thrshld 6.1V

To Measure the Dominant input threshold of the DUT,when the Voltage value of U at 6.1V

Observe DomVInpThrshld value

Acceptance Criteria:

The DUT shall stop the transmission of its frames when a dominant input threshold of 0.9 V is reached.

Domnt InPut Thrshld -2V

To Measure the recessive input threshold of the DUT,when the Voltage value of U at -2V

Observe DomVInpThrshld value

Acceptance Criteria:

The DUT shall stop the transmission of its frames when a dominant input threshold of 0.9 V is reached.

4.1.6 Min and Max Supply Vtg Lvl for Bus Comm

Check the minimum and maximum supply voltage level threshold for a correct bus communication.

 

4.1.6.1 Min Max Power Supply Extended

Measure the time until the DUT resumes bus communication, i.e., successful reception or transmission of a message.

To measure the maximum supply voltage level for CAN communication, increase the supply voltage in useful steps to 26.5 V maximum

 

Observe VbattMax ,Tresume Values

Acceptance Criteria:

The DUT shall support error-free bus communication down to a supply voltage level of 6.0 V. The DUT shall resume bus communication within 300 ms (If there is an interruption of the CAN communication) after the supply voltage has reached a level of <=6.5 V.

4.1.6.1 Min Max Power Supply Standard

Measure the time until the DUT resumes bus communication, i.e., successful reception or transmission of a message.

To measure the maximum supply voltage level for CAN communication, increase the supply voltage in useful steps to 26.5 V maximum

 

Observe VbattMax ,Tresume Values

Acceptance Criteria:

The DUT shall support error-free bus communication down to a supply voltage of at least 9.0 V. The DUT shall resume bus communication within 300 ms (if there is an interruption of the CAN communication) after the supply voltage has reached a level of <=9.5 V

4.1.7 Behavior during Crank

Check the behavior of the DUT during voltage drops.Apply Test Pulse No. 4 (pulse severity IV) of the GMW3097 to the supply voltage lines of the DUT.

 

4.1.7.1  Behvr During Crnk Pulse UP2.5 Suprted

Apply Test Pulse UP 2.5 supported during Crank

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no error frames during and after the application of the crank pulse. The DUT shall resume bus communication (If there is an interruption of the CAN communication) within 300 ms after the supply voltage has reached a level of <= 6.5 V

4.1.7.1  Behvr During Crnk Pulse UP3 Suprted

Apply Test Pulse UP 3 supported during Crank

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no error frames during and after the application of the crank pulse. The DUT shall resume bus communication (If there is an interruption of the CAN communication) within 300 ms after the supply voltage has reached a level of <= 6.5 V

4.1.7.1  Behvr During Crnk Pulse UP4 Suprted

Apply Test Pulse UP 4 supported during Crank

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no error frames during and after the application of the crank pulse. The DUT shall resume bus communication (If there is an interruption of the CAN communication) within 300 ms after the supply voltage has reached a level of <= 6.5 V

4.1.7.1  Behvr During Crnk Pulse UP5 Suprted

Apply Test Pulse UP 5 supported during Crank.

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no error frames during and after the application of the crank pulse. The DUT shall resume bus communication (If there is an interruption of the CAN communication) within 300 ms after the supply voltage has reached a level of <= 6.5 V

4.1.7.2  Behvr During Crnk Pulse UP2.5 NotSuprted

Apply Test Pulse UP 2.5 Notsupported during Crank.

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no

error frames during and after the application of the crank pulse. The DUT shall resume

bus communication within 300 ms (if there is an interruption of the CAN communication)

after the supply voltage has reached a level of <= 9.5 V

4.1.7.2  Behvr During Crnk Pulse UP3 NotSuprted

Apply Test Pulse UP 3 Notsupported during Crank

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no error frames during and after the application of the crank pulse. The DUT shall resume bus communication within 300 ms (if there is an interruption of the CAN communication) after the supply voltage has reached a level of <= 9.5 V

4.1.7.2  Behvr During Crnk Pulse UP4 NotSuprted

Apply Test Pulse UP 4 Notsupported during Crank

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no error frames during and after the application of the crank pulse. The DUT shall resume bus communication within 300 ms (if there is an interruption of the CAN communication) after the supply voltage has reached a level of <= 9.5 V

4.1.7.2  Behvr During Crnk Pulse UP5 NotSuprted

Apply Test Pulse UP 5 Notsupported during Crank

Observe Tresume Value

Acceptance Criteria:

The DUT shall not cause any error conditions to occur on the bus, i.e., there shall be no error frames during and after the application of the crank pulse. The DUT shall resume bus communication within 300 ms (if there is an interruption of the CAN communication) after the supply voltage has reached a level of <= 9.5 V

4.1.8 Signal Rise Fall time

To Measure the recessive-to-dominant and dominant-to-recessive transition times of the CAN signal.

 

4.1.8.1  Signal Rise Fall Time Min Load Without Rx

To measure the Signal Fall time of the DUT CAN bus signal between 20 % and 80 % of Vdiff with min Load.

Observe Trise and Tfall values

Acceptance Criteria:

                                   MIN                    MAX

Trise Min Load          15ns                 150ns

Tfall Min Load           15ns                 300ns

4.1.8.1  Signal Rise Fall Time Min Load  With Rx

To measure the Signal Fall time of the DUT CAN bus signal between 20 % and 80 % of Vdiff(180KΩ) with Min Load

 

Observe Trise and Tfall values

Acceptance Criteria:

                                  MIN                    MAX

Trise Min Load          15ns                150ns

Tfall Min Load           15ns                300ns

4.1.8.1  Signal Rise Fall Time Max Load Without Rx

To measure the Signal Fall time of the DUT CAN bus signal between 20 % and 80 % of Vdiff with Max Load.

Observe Trise and Tfall values

Acceptance Criteria:

                                    MIN                  MAX

Trise Max Load          15ns              1300ns

Tfall Max Load           15ns              1300ns

4.1.8.1  Signal Rise Fall Time Max Load With Rx

To measure the Signal Fall time of the DUT CAN bus signal between 20 % and 80 % of Vdiff(180KΩ) with Max Load.

Observe Trise and Tfall values

Acceptance Criteria:

                                     MIN                  MAX

Trise Max Load          15ns              1300ns

Tfall Max Load           15ns              1300ns

4.1.9 Signal Characteristics

Check the symmetric/Asymmetric of CAN bus signals at different physical load conditions

 

4.1.9.1.1  Signal Char Symmetric Min Load Without Rx

Check the Symmetric dominant CAN bus signal oscillations for Min Load of a single bit  with an oscilloscope.

Acceptance Criteria:

In the first half of the bit time, the bus output level shall be in the range of (81 to 150) % of the DC-value at the end of the bit.

In the second half of the bit time, the bus output level shall be in the range of (95 to 105) % of the DC-value at the end of the bit.

The sum of CANH and CANL shall be within the following limits:

   4.2V<= ∑(CanH,CanL)<=5.8V

The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its average voltage level.

4.1.9.1.1  Signal Char Symmetric Min Load With Rx

Check the Symmetric  dominant CAN bus signal oscillations for a Min Load of a single bit  with an oscilloscope with Rx180Ω.

Acceptance Criteria:

In the first half of the bit time, the bus output level shall be in the range of (81 to 150) % of the DC-value at the end of the bit.

In the second half of the bit time, the bus output level shall be in the range of (95 to 105) % of the DC-value at the end of the bit. The sum of CANH and CANL shall be within the following limits:

   4.2V<= ∑(CanH,CanL)<=5.8V

The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its average voltage level.

4.1.9.1.2  Signal Char Symmetric Max Load Without Rx

Check the Symmetric  dominant CAN bus signal oscillations for MaxLoad of a single bit  with an oscilloscope.

Acceptance Criteria:
In the first half of the bit time, the bus output level shall be in the range of (81 to 150) %
of the DC-value at the end of the bit.
 
In the second half of the bit time, the bus output level shall be in the range of (95 to 105) % of the DC-value at the end of the bit.
 
The sum of CANH and CANL shall be within the following limits:
   4.2V<= ∑(CanH,CanL)<=5.8V
The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its
average voltage level.

 

4.1.9.1.2  Signal Char Symmetric Max Load With Rx

 

Check the Symmetric dominant CAN bus signal oscillations for a Max Load of a single bit  with an oscilloscope with Rx180Ω.

 

Acceptance Criteria:
In the first half of the bit time, the bus output level shall be in the range of (81 to 150) %
of the DC-value at the end of the bit.
 
In the second half of the bit time, the bus output level shall be in the range of
(95 to 105) % of the DC-value at the end of the bit.
 
The sum of CANH and CANL shall be within the following limits:
 
   4.2V<= ∑(CanH,CanL)<=5.8V
 
The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its
average voltage level.

 

4.1.9.2.1  Signal Char Asymmetric Min Load Without Rx

 

Check the Asymmetric dominant CAN bus signal oscillations for Min Load of a single bit  with an oscilloscope.

 

Acceptance Criteria:
In the first half of the bit time, the bus output level shall be in the range of (81 to 150) %
of the DC-value at the end of the bit.
 
In the second half of the bit time, the bus output level shall be in the range of
(95 to 105) % of the DC-value at the end of the bit.
 
The sum of CANH and CANL shall be within the following limits:
 
   4.2V<= ∑(CanH,CanL)<=5.8V
 
The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its
average voltage level.

 

4.1.9.2.1  Signal Char Asymmetric Min Load With Rx

 

Check the Asymmetric  dominant CAN bus signal oscillations for a Min Load of a single bit  with an oscilloscope with Rx180Ω.

 

Acceptance Criteria:
In the first half of the bit time, the bus output level shall be in the range of (81 to 150) %
of the DC-value at the end of the bit.
 
In the second half of the bit time, the bus output level shall be in the range of
(95 to 105) % of the DC-value at the end of the bit.
The sum of CANH and CANL shall be within the following limits:
   4.2V<= ∑(CanH,CanL)<=5.8V
The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its
average voltage level.

 

4.1.9.2.2  Signal Char Asymmetric Max Load Without Rx

 

Check the Asymmetric  dominant CAN bus signal oscillations for MaxLoad of a single bit  with an oscilloscope.

 

Acceptance Criteria:
In the first half of the bit time, the bus output level shall be in the range of (81 to 150) %
of the DC-value at the end of the bit.
In the second half of the bit time, the bus output level shall be in the range of
(95 to 105) % of the DC-value at the end of the bit.
The sum of CANH and CANL shall be within the following limits:
   4.2V<= ∑(CanH,CanL)<=5.8V
 
The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its
average voltage level.

4.1.9.2.2  Signal Char Asymmetric Max Load With Rx

 

Check the Asymmetric dominant CAN bus signal oscillations for a Max Load of a single bit with an oscilloscope with Rx180Ω.

 

Acceptance Criteria:
In the first half of the bit time, the bus output level shall be in the range of (81 to 150) % of the DC-value at the end of the bit.
In the second half of the bit time, the bus output level shall be in the range of
(95 to 105) % of the DC-value at the end of the bit.
The sum of CANH and CANL shall be within the following limits:
   4.2V<= ∑ (CanH,CanL)<=5.8V
The oscillation of the sum of CANH and CANL shall be within (95 to 105) % relative to its average voltage level.

 

4.1.10.1 Tolerance of CAN Bit Time

Calculate the tolerance of the CAN bit time of the DUT under different Temperatures.

 

4.1.10.1.1  Tol Of CAN Bit Time Min Load TstCase1

Measure the bit time of the DUT using an oscilloscope. Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.1  Tol Of CAN Bit Time Max Load TstCase1

Measure the bit time of the DUT using an oscilloscope. Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with max Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1. 2  Tol Of CAN Bit Time Min Load TstCase 2

Measure the bit time of the DUT using an oscilloscope with Rx180Ω  . Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.2  Tol Of CAN Bit Time Max Load TstCase2

Measure the bit time of the DUT using an oscilloscope with Rx180Ω . Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.1  Tol Of CAN Bit Time Min Load TstCase1

Measure the bit time of the DUT using an oscilloscope. Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.1  Tol Of CAN Bit Time Max Load TstCase 1

Measure the bit time of the DUT using an oscilloscope. Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.2  Tol Of CAN Bit Time Min Load TstCase 2

Measure the bit time of the DUT using an oscilloscope with Rx180Ω . Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant

edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.2  Tol Of CAN Bit Time Max Load TstCase 2

Measure the bit time of the DUT using an oscilloscope with Rx180Ω . Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant

edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.1  Tol Of CAN Bit Time Min Load TstCase 1

Measure the bit time of the DUT using an oscilloscope. Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.1  Tol Of CAN Bit Time Max Load TstCase 1

Measure the bit time of the DUT using an oscilloscope. Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.2  Tol Of CAN Bit Time Min Load TstCase 2

Measure the bit time of the DUT using an oscilloscope with Rx180Ω . Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.1.2  Tol Of CAN Bit Time Max Load TstCase 2

Measure the bit time of the DUT using an oscilloscope with Rx180Ω . Trigger on a message of the DUT (e.g., the General Status message) and measure the time between the recessive to-dominant edges of (20 to 30) bits of Vdiff with min Load.

Calculate BitDeviation Values

Acceptance Criteria:

The maximum bit time deviation shall be ± 0.45 %

4.1.10.2 Tolerance To Baud Rate Variations

Check whether the DUT is able to receive messages with bit times that cover the entire allowed tolerance range

 

4.1.10.2.1  Tolerance To Bd Rate Var MinLd TstCase 1

The test tool transmits the messages listed in Table 9(GMW14241)  for several minutes in a consecutive order with minimum load

Acceptance Criteria:

The DUT shall continue to transmit its application frames, and is not allowed to send any error frames during the test.

4.1.10.2.2  Tolerance To Bd Rate Var Min Load TstCase 2

The test tool transmits the messages listed in Table 9(GMW14241)  for several minutes with Rx180Ω in a consecutive order with minimum load

Acceptance Criteria:

The DUT shall continue to transmit its application frames, and is not allowed to send any error frames during the test.

4.1.10.2.1  Tolerance To Bd Rate Var Max Load TstCase 1

The test tool transmits the messages listed in Table 9(GMW14241)  for several minutes in a consecutive order with maximum load

Acceptance Criteria:

The DUT shall continue to transmit its application frames, and is not allowed to send any error frames during the test.

4.1.10.2.2  Tolerance To Bd Rate Var Max Load TstCase 2

The test tool transmits the messages listed in Table 9(GMW14241)  for several minutes with Rx180Ω in a consecutive order with maximum load

Acceptance Criteria:

The DUT shall continue to transmit its application frames, and is not allowed to send any error frames during the test.

4.1.11.1 Test Immunity to Ground Potential Offsets

To check at which ground offset level the DUT stops

communication or communication problems occur

 

4.1.11.1.1  Test Immunity To Gnd Offst Method 1 TstCase 1

Expose the DUT to ground offset levels of 2.0 V maximum. Increase the ground offset starting at 0 V in steps of 0.1 V

Observe VOffstCommErr Value

Acceptance Criteria:

At which Ground Offset the DUT Stops Communication

4.1.11.1.1  Test Immunity To Gnd Offst Method 1 TstCase 2

Expose the DUT to ground offset levels of 2.0 V maximum with Rx180Ω. Increase the ground offset starting at 0 V in steps of 0.1 V

Observe VOffstCommErr Value

Acceptance Criteria:

At which Ground Offset the DUT Stops Communication

4.1.11.1.2  Test Immunity To Gnd Offst Method 2 TstCase 1

Expose the TestTool to ground offset levels of 2.0 V maximum. Increase the ground offset starting at 0 V in steps of 0.1 V

Observe VOffstCommErr Value

Acceptance Criteria:

At which Ground Offset the DUT Stops Communication

4.1.11.1.2  Test Immunity To Gnd Offst Method 2 TstCase 2

Expose the TestTool to ground offset levels of 2.0 V maximum with Rx180Ω. Increase the ground offset starting at 0 V in steps of 0.1 V

Observe VOffstCommErr Value

Acceptance Criteria:

At which Ground Offset the DUT Stops Communication

4.1.11.2 Loss of Ground

Monitor the CAN-Bus with a CAN-tool(with at least 2 additional nodes) and check if the communication (e.g., Error frames) is disturbed after the DUT loses its Ground connection.

Note: MxPLT Cannot measure the DUT current consumption (quiescent current) during sleep mode which will be less than 1 mA.

4.1.11.2.1 Loss of Gnd 60ohm Ld

To Monitor the behavior of the DUT loses its Ground connection.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.2.2  Loss of Gnd 45ohm Ld

To Monitor the behavior of the DUT loses its Ground connection with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.3 Loss of Power

Monitor the CAN-Bus with a CAN-tool(with at least 2 additional nodes) and check if the communication (e.g., Error frames) is disturbed after the DUT loses its supply connection.

Note: MxPLT Cannot measure the DUT current consumption (quiescent current) during sleep mode which will be less than 1 mA.

4.1.11.3  Loss Of Pwr TstCase 1

To Monitor the behavior of the DUT loses its supply connection.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.3  Loss Of Pwr TstCase 2

To Monitor the behavior of the DUT loses its supply connection with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.4 Interruption of CAN Wires

Monitor the CAN-Bus with a CAN-tool and check if the communication is disturbed (e.g.,Errorframes) after the DUT loses one or both of its CAN connections

Note: MxPLT Cannot measure the DUT current consumption (quiescent current) during sleep mode which will be less than 1 mA.

4.1.11.4.1  Intrption of CANH Wires TstCase 1

To Monitor the behavior of the DUT when CANH Disconnected

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.4.2  Intrption of CANH Wires TstCase 2

To Monitor the behavior of the DUT when CANH Disconnected with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.4.1  Intrption of CANL Wires TstCase 1

To Monitor the behavior of the DUT when CANL Disconnected

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.4.2  Intrption of CANL Wires TstCase 2

To Monitor the behavior of the DUT when CANL Disconnected with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.4.3  Intrption of CANH&L Wires TstCase 1

To Monitor the behavior of the DUT when CANH& CANL Disconnected

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.4.3  Intrption of CANH&L Wires TstCase 2

To Monitor the behavior of the DUT when CANH & CANL Disconnected with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.5 CAN wires short to ground

Monitor the CAN-Bus with a CAN-tool and check if the communication (e.g.,Errorframes) is disturbed during and after the short to Ground.

Note: MxPLT Cannot measure the DUT current consumption (quiescent current) during sleep mode which will be less than 1 mA.

4.1.11.5.1  CANH shrt To Gnd TstCase 1

To Monitor the behavior of the DUT when CANH short to Ground

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.5.1  CANH shrt To Gnd TstCase 2

To Monitor the behavior of the DUT when CANH short to Ground  with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.5.2  CANL shrt To Gnd TstCase 1

To Monitor the behavior of the DUT when CANL short to Ground

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.5.2  CANL shrt To Gnd TstCase 2

To Monitor the behavior of the DUT when CANL short to Ground  with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.5.3  CANH&L shrt To Gnd TstCase 1

To Monitor the behavior of the DUT when CANH & CANL short to Ground

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.5.3  CANH&L shrt To Gnd TstCase 2

To Monitor the behavior of the DUT when CANH & CANL short to Ground  with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level after the deactivation level

4.1.11.6 CAN wires short to Supply

Monitor the CAN-Bus with a CAN-tool and check if the communication (e.g.,Errorframes) is disturbed during and after the short to supply.

Note: MxPLT Cannot measure the DUT current consumption (quiescent current) during sleep mode which will be less than 1 mA.

4.1.11.6.1  CANH shrt To 14V TstCase 1

To Monitor the behavior of the DUT when CANH short to supply of 14V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.1  CANH shrt To 14V TstCase 2

To Monitor the behavior of the DUT when CANH short to supply of 14V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.2  CANL shrt To 14V TstCase 1

To Monitor the behavior of the DUT when CANL short to supply of 14V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.2  CANL shrt To 14V TstCase 2

To Monitor the behavior of the DUT when CANL short to supply of 14V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.3 CANH&L shrt To 14V TstCase 1

To Monitor the behavior of the DUT when CANH & CANL short to supply of 14V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.3  CANH&L shrt To 14V TstCase 2

To Monitor the behavior of the DUT when CANH & CANL short to supply of 14V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.1  CANH shrt To 18V TstCase 1

To Monitor the behavior of the DUT when CANH short to supply of 18V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.1  CANH shrt To 18V TstCase 2

To Monitor the behavior of the DUT when CANH short to supply of 18V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.2  CANL shrt To 18V TstCase 1

To Monitor the behavior of the DUT when CANL short to supply of 18V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.2  CANL shrt To 18V TstCase 2

To Monitor the behavior of the DUT when CANL short to supply of 18V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.3  CANH&L shrt To 18V TstCase 1

To Monitor the behavior of the DUT when CANH & CANL short to supply of 18V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.3  CANH&L shrt To 18V TstCase 2

To Monitor the behavior of the DUT when CANH & CANL short to supply of 18V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.1  CANH shrt To 26.5V TstCase 1

To Monitor the behavior of the DUT when CANH short to supply of 26.5V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.1  CANH shrt To 26.5V TstCase 2

To Monitor the behavior of the DUT when CANH short to supply of 26.5V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.2  CANL shrt To 26.5V TstCase 1

To Monitor the behavior of the DUT when CANL short to supply of 26.5V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.2  CANL shrt To 26.5V TstCase 2

To Monitor the behavior of the DUT when CANL short to supply of 26.5V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.3  CANH&L shrt To 26.5V TstCase 1

To Monitor the behavior of the DUT when CANH & CANL short to supply of 26.5V.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.6.3  CANH&L shrt To 26.5V TstCase 2

To Monitor the behavior of the DUT when CANH & CANL short to supply of 26.5V with Rx180Ω.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.7 Short between CAN wires

Check the behaviour of the DUT,when short between CANH and CANL for 5secs maximum

Note: MxPLT Cannot measure the DUT current consumption (quiescent current) during sleep mode which will be less than 1 mA.

4.1.11.7  Shrt between CAN wires TstCase 1

Create short between CANH and CANL and check the behavior of DUT.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

4.1.11.7  Shrt between CAN wires TstCase 2

Create short between CANH and CANL with Rx180Ω and check the behavior of DUT.

Observe Tresume Value

Acceptance criteria:

The DUT shall resume with its bus communication within 300 ms and the current consumption shall not exceed the specified quiescent current level  after the deactivation level

Manual Verification for “4.1.5 Device Input Capacitance”

The capacitance parameters Cin & Cdiff measured by MxPLT includes the capacitance of the harness.

Procedure 1

Use a harness less than one meter LONG to measure actual ECU capacitance values.

Procedure 2

If the harness is more than one meter long, compensate for the harness capacitance in MxPLT measurements.  See the images below:

With ECU

PLT-GMDW3

Without ECU

PLT-GMDW4

Actual Capacitance = With ECU - Without ECU

Cin = 132-36.1 = 95.9pf

Cdiff = 161-54.2 = 106.8pf as per above sample images.

GMW14241 DWCAN TestCases

No Internal Termination TestCases

Input TestCases

Input Pulsed TestCases