CiA glossary of terms

TermDefinition
(functional) controller virtual device controlling other virtual devices (e.g. lift door controller)
(functional) unit virtual device controlled by another virtual device (e.g. lift door unit)
CAN bridge functional element that links two CAN network segments using the same CAN data link layer communication services, the physical layers can be different
CAN FD data link layer compliant to ISO 11898-1 supporting CBFF (Classical Base Frame Format) and CEFF (Classical Extended Frame Format) as well as FBFF (FD Base Frame Format) and FEFF (FD Extended Frame Format)
CAN switch functional element that links more than two network segments using the same data link layer communication services, the physical layer can be different
CAN transceiver component that implements a Physical Media Attachment sub-layer compliant to ISO 11898-2, ISO 11898-3, ISO 11992-1, or SAE 2411
CAN/CAN FD bus Classical CAN/CAN FD network segment using bus topology with short stubs
CAN/CAN FD controller entity implementing the Classical CAN/CAN FD data link layer as stand-alone component or integrated in a micro-controller, an FPGA, or a gate array
CAN/CAN FD node entity implementing the Classical CAN/CAN FD data link layer, the physical signaling sub-layer, and a PMA
CAN/CAN FD repeater functional element that links two or more network segments using the same physical layer with the very same bit-timing
CANopen FD application layer and communication profile as specified in CiA 1301
CANopen FD network system communication system comprising one or more CANopen FD network segments connected by means of CAN/CAN FD bridges/switches or CANopen/CANopen FD router
CANopen Safety safety-related application layer extention as specified in EN 50325-5 (formerly CiA 304)
CANopen/CANopen FD field device electronic unit comprising printed circuit board, firmware, software, and an optional enclosure as well as one or more CANopen/CANopen FD nodes
CANopen/CANopen FD network segment Classical CAN/CAN-FD based communication system comprising cabling, connectors, and CANopen/CANopen FD field devices
CANopen/CANopen FD node entity implementing the CANopen FD application layer services as specified in CiA 301/CiA 1301
CANopen/CANopen FD router functional element that links two or multiple CANopen/CANopen FD network segments using the same network layer communication services, the datalink and physical layer can be different
CiA application profile set of communication interfaces of virtual devices building a logical network system for a dedicated application (e.g. lift control system)
CiA device profile communication interface of a logical device
classic CANopen application layer and communication profile as specified in CiA 301 respectively EN 50325-4
Classical CAN data link layer compliant to ISO 11898-1 supporting CBFF (Classical Base Frame Format) and CEFF (Classical Extended Frame Format) only
COB (communication object) dedicated application layer service and corresponding protocol
EMCY (Emergency) COB providing status information of the CANopen/CANopen FD EMCY FSA (finite state automaton) and detailed information about detected communication and application errors
EMCY consumer CANopen/CANopen FD functional element receiving EMCY messages from other CANopen/CANopen FD nodes
EMCY producer CANopen/CANopen FD functional element transmitting the EMCY message
frame entity of the CAN data link layer protocol
frame field sub-part of frame (e.g. control field, data field, CRC field, ACK field)
functional element hardware and/or software entity implementing a specific functionality
gateway funtional element that links two or more network segments using different application layer communication services
Heartbeat COB providing the NMT slave FSA status as a confirmation of the requested transistion and implicitely the availability of the CANopen device on the network
Heartbeat consumer CANopen/CANopen FD functional element receiving Heartbeat messages from other CANopen/CANopen FD nodes
Heartbeat producer CANopen/CANopen FD functional element transmitting the Heartbeat message
interface profile communication interface of a CANopen field device with gateway functionality
Layer Setting Services (LSS) services and protocols to configure the CAN bit-rate, the node-ID, and the network-ID as specified in CiA 305 or CiA 1305
logical device functional entity within a CANopen or CANopen FD field device using 800h parameters of the device profile area of the CANopen/CANopen FD object dictionary
logical network system network system not mapped to physical network segments
message entity of the application layer protocol
NMT (network management) COB send by the NMT master entity to NMT slave entities controlling the transitions of the NMT slave FSA
node entity implementing OSI layer services and protocols
packet entity of the network layer protocol
parameter field sub-part of a structured parameter
PDO (Process Data Object) COB providing process data such as commands, status information, or measured data
PDO consumer CANopen/CANopen FD functional element receiving PDO messages from other CANopen/CANopen FD nodes
PDO producer CANopen/CANopen FD functional element transmitting PDO messages
PMA (physical media attachment) sub-layer of the OSI physical layer normally implemented in transceiver circuitry transforming TxD signals into network line signals respectively network line signals into RxD signals
SDO (Service Data Object) COB reading or writing to CANopen object dictionary entries
SDO/USDO client requestor of an SDO/USDO service reading or writing to object dictionaries
SDO/USDO server responder to an SDO/USDO read or write service request
segment entity of the transport layer protocol
Signal Improvement Circuitry (SIC) circuitry that suppresses ringing as specified in CiA 601-4
SYNC (synchronization) COB triggering synchronous PDOs and synchronous data acquisition as well as synchronous actuation in different CANopen nodes
SYNC consumer CANopen/CANopen FD functional element receiving the SYNC message
SYNC producer CANopen/CANopen FD functional element transmitting the SYNC message
TIME (global network time) COB providing a global network time information
TIME consumer CANopen/CANopen FD functional element receiving the TIME message
TIME producer CANopen/CANopen FD functional element transmitting the TIME message
USDO (Universal Service Data Object) COB reading or writing to CANopen FD object dictionary entries inlcluding remote access to CANopen FD field devices in other network segments
virtual device functional entity within a logical device compliant to a CiA application profile