Slide 1 Industrial Automation - Customer View - Training PhW - CANopen_en 02/ 2002 CANopen QUIZ CANopen QUIZ

Industrial Automation - Customer View - TrainingPhW - CANopen_en 02/ 2002

Slide 1

CANopenCANopen QUIZ QUIZ


Slide 2

CANopen QUIZCANopen QUIZ

Section 1 : Basic knowledge

Section 2 : Application layer

Section 3 : Link layer

Section 4 : Physical layer


Slide 3

QUIZ: Section 1 : Basic knowledge - Question 1QUIZ: Section 1 : Basic knowledge - Question 1

The CAN protocol was created on the initiative of automation product manufacturers.

TRUE

FALSE


Slide 4


CAL = CAN Application Layer ensures interoperability between products manufactured by different manufacturers.

TRUE

FALSE


Slide 5


Who developed the CANopen application layer?

The German equipment manufacturer BOSCH

The CiA association = CAN in Automation

The Allen Bradley company


Slide 6


The maximum length of a CANopen bus depends on the transmission speed.

TRUE

FALSE


Slide 7


What is the maximum number of devices that can be connected on a CANopen bus?

31

64

128

255


Slide 8


Which network access method does CANopen use?

Master - slave system

CSMA/CD (destructive collision)

CSMA/CA (non-destructive collision)


Slide 9


CANopen can transmit data with better safety and reliability.

TRUE

FALSE


Slide 10


Which service is used to send parameter-setting data (larger than 8 bytes)?

PDO

SDO

SFO


Slide 11


Which service is used to send process data (smaller than 8 bytes) quickly?

PDO

SDO

SFO


Slide 12


Which service is used to manage synchronizations, time-based references, fatal errors?

PDO

SDO

SFO


Slide 13

QUIZ: Section 1 : Basic knowledge - Answer 1QUIZ: Section 1 : Basic knowledge - Answer 1

The CAN protocol was created on the initiative of automation product manufacturers.

FALSE

The automotive industry was behind the development of CAN in response to a need for communication between several on-board electronic subassemblies.


Slide 14


CAL = CAN Application Layer ensures interoperability between products manufactured by different manufacturers.

FALSE

CAL provides tools which can be used to develop a CAN application, and CANopen profiles ensure product interoperability.


Slide 15


Who developed the CANopen application layer?

The CiA association = CAN in Automation


Slide 16


The maximum length of a CANopen bus depends on the transmission speed.

TRUE

From 25 metres at 1Mbps to 1000 metres at 10 Kbps.


Slide 17


What is the maximum number of devices that can be connected on a CANopen bus?

128 devices1 master and 127 slaves


Slide 18


Which network access method does CANopen use?

CSMA/CA

Non-destructive collision


Slide 19


CANopen can transmit data with better safety and reliability.

TRUE

It is one of the safest and most reliable industrial local area networks.


Slide 20


Which service is used to send parameter-setting data (larger than 8 bytes)?

The SDO Service Data Object service

which is used to segment data larger than 8 bytes on the basis of a client-server model.


Slide 21


Which service is used to send process data (smaller than 8 bytes) quickly?

The PDO Process Data Object service

which operates on the basis of the producer-consumer model.


Slide 22


Which service is used to manage synchronizations, time-based references, fatal errors?

The SFO Special Function Object service


Slide 23

QUIZ: Section 2 : Application layer - Question 1QUIZ: Section 2 : Application layer - Question 1

CAL is the name of the CANopen application layer.

TRUE

FALSE


Slide 24


CMS, NMT, LMT and DBT are services belonging to the CANopen profiles.

TRUE

FALSE


Slide 25


Which identifier has the highest priority?

COB-ID =220

COB-ID =2031

COB-ID =1150

COB-ID =0


Slide 26


COB-ID is used to point at an address in a product’s object dictionary.

TRUE

FALSE


Slide 27


What is the EDS file?

A user manual

An ordered ASCII file which describes the device

The electrical characteristics of a device


Slide 28


Which service is used to set the device parameters?

NMT

SDO

PDO

SYNC


Slide 29


PDOs = Process Data Objects operate on the producer consumer model.

TRUE

FALSE


Slide 30


SDOs = Service Data Objects operate on the Client Server model and need 2 COB-IDs.

TRUE

FALSE


Slide 31


PDOs = Process Data Objects are used to transport more than 8 bytes.

TRUE

FALSE


Slide 32


What is the SYNC object used for?

Monitoring the network

Providing a time reference

Synchronizing a process


Slide 33


What is Life guarding?

The communication monitoring system at the master end

The communication monitoring system at the slave end


Slide 34


CANopen offers a system for allocating default identifiers.

TRUE

FALSE


Slide 35

QUIZ: Section 2 : Application layer - Answer 1QUIZ: Section 2 : Application layer - Answer 1

CAL is the name of the CANopen application layer.

FALSE

CAL defines a certain number of tools without giving their instructions for use.

The CANopen application is made up of CAL and also CANopen profiles defined by the CiA.


Slide 36


CMS, NMT, LMT and DBT are services belonging to the CANopen profiles.

FALSE

CMS, NMT, LMT, and DBT are services offered by CAL.


Slide 37


Which identifier has the highest priority?

COB-ID = 0

The identifier with the highest priority is the one with the lowest value.


Slide 38


COB-ID is used to point at an address in a product’s object dictionary.

FALSEThe COB-ID corresponds to a communication object or message carried at the beginning of the frame. An index coded on 16 bits is used to point to the object dictionary, followed if necessary by a sub-index coded on 8 bits.


Slide 39


What is the EDS file?

An ordered ASCII file which describes the device


Slide 40


Which service is used to set the device parameters?

SDO objects = Service Data Objects


Slide 41


PDOs = Process Data Objects operate on the producer consumer model.

TRUE


Slide 42


SDOs = Service Data Objects operate on the Client Server model and need 2 COB-IDs.

TRUE


Slide 43


PDOs = Process Data Objects are used to transport more than 8 bytes

FALSE8 bytes maximum. SDO objects are used to transmit

more than 8 bytes


Slide 44


What is the SYNC object used for?

Synchronizing a process


Slide 45


What is Life guarding?

The communication monitoring system at the slave end


Slide 46


CANopen offers a system for allocating default identifiers.

TRUEThis system is used to simplify system configuration.


Slide 47

QUIZ: Section 3 : Link layer - Question 1QUIZ: Section 3 : Link layer - Question 1

How large is the identifier field of a CAN 2.0.A standard format frame?

8 bits

11 bits

16 bits

29 bits


Slide 48


Which of these fields is used to differentiate a Data Frame from a Remote Frame?

The identifier

The RTR

The CTR

The data


Slide 49


Which mechanism is used to check the structure of a CAN frame?

The CRC

The ACK slot

The delimiters

The stuffing bit


Slide 50


The error counters on each station are incremented by one unit for each communication error detected.

TRUE

FALSE


Slide 51


When a node detects a communication error, it systematically sends an Error Frame with an ACTIVE ERROR FLAG field.

TRUE

FALSE


Slide 52


A node is permanently disconnected from the network when its TEC counter reaches the value 255.

TRUE

FALSE


Slide 53

QUIZ: Section 3 : Link layer - Answer 1QUIZ: Section 3 : Link layer - Answer 1

How large is the identifier field of a CAN 2.0.A standard format frame?

11 bits


Slide 54


Which of these fields is used to differentiate a Data Frame from a Remote Frame?

The RTRThe value of the RTR is dominant for a Data Frame and recessive for a Remote Frame. If a request frame is repeated, the response to this request therefore takes priority.


Slide 55


Which mechanism is used to check the structure of a CAN frame?

The delimitersCRC Delimiter, ACK Delimiter, End of Frame, Error Delimiter, and Overload Delimiter are integrated in the frames so that the structure can be checked.


Slide 56


The error counters on each station are incremented by one unit for each communication error detected.

FALSEThese counters are incremented and decremented using a sophisticated weighting mechanism etched in the silicon.


Slide 57


When a node detects a communication error, it systematically sends an Error Frame with an ACTIVE ERROR FLAG field.

FALSEThe reaction of the node depends on its status: Active errors, Passive errors or bus OFF.


Slide 58


A node is permanently disconnected from the network when its TEC counter reaches the value 255.

FALSEThe node is disconnected and monitors the bus. If 128 occurrences of 11 consecutive recessive bits are detected (frames without errors), the node reverts to Active Error mode.


Slide 59

QUIZ: Section 4 : Physical layer - Question 1QUIZ: Section 4 : Physical layer - Question 1

What is the maximum length of a CANopen bus at 1 Mbps?

25 metres

40 metres

60 metres

100 metres


Slide 60


On CANopen, the cable cross-section is selected according to the number of slaves and the length of the bus.

TRUE

FALSE


Slide 61


On CANopen, there is free choice of network topology.

TRUE

FALSE


Slide 62


CANopen products can have different connections.

TRUE

FALSE


Slide 63

QUIZ: Section 4 : Physical layer - Answer 1QUIZ: Section 4 : Physical layer - Answer 1

What is the maximum length of a CANopen bus at 1 Mbps?

25 metres


Slide 64


On CANopen, the cable cross-section is selected according to the number of slaves and the length of the bus.

TRUE


Slide 65


On CANopen, there is free choice of network topology.

FALSE

The topology should be bus type with the shortest possible tap links.


Slide 66


CANopen products can have different connections.

TRUE

Documents

Slide 1 Industrial Automation - Customer View - Training PhW - CANopen_en 02/ 2002 CANopen QUIZ CANopen QUIZ