| AF |
Fuse, fast |
Drive |
| AGND |
Analog ground |
General |
| AL |
Application Layer: the protocol that directly used by the process entities. |
|
| AM |
Fuse, medium |
Drive |
| AT |
Fuse, slow |
Drive |
| B10d |
Number of cycles until 10% of the components fail with caused danger |
Safety |
| BTB/RTO |
Ready to operate |
Drive |
| C |
Duty cycles (per hour) of electro-mechanical devices |
Safety |
| CAN |
Fieldbus (CANopen) |
CAN |
| Cat |
Category – classification for cables that is also used in Ethernet. Cat 5 is the minimum required category for EtherCAT. |
EtherCAT |
| CCF |
Common cause failure |
Safety |
| CE |
Communité Europeenne |
General |
| CLK |
Clock signal |
General |
| COB |
Communication Object |
CAN |
| COB-ID |
Communication Object Identifier |
CAN |
| COM |
Serial interface for a Personal Computer |
General |
| DC |
Distributed Clocks Mechanism to synchronize EtherCAT slaves and master |
CAN |
| DC |
Fault diagnostic coverage |
Safety |
| DCavg |
Fault diagnostic coverage (average) |
Safety |
| DGND |
Digital ground (for 24V and digital I/O) |
Drive |
| Disk |
Magnetic storage (diskette, hard disk) |
General |
| DL |
Data Link, also known as Layer 2. EtherCAT uses Ethernet, which is standardized as IEEE 802.3. |
EtherCAT |
| EEPROM |
Electrically erasable programmable memory |
General |
| EMV |
Electromagnetic compatibility |
General |
| EtherCAT (ECAT) |
RT Standard for Industrial Ethernet Control Automation Technology |
EtherCAT |
| FPGA |
Field Programmable Gate Array |
General |
| F-SMA |
Fiber Optic Cable connector according to IEC 60874-2 |
EtherCAT |
| FTP |
File Transfer Protocol |
General |
| HFT |
Hardware fault tolerance |
Safety |
| HW |
Hardware |
General |
| ICMP |
Internet Control Message Protocol: Mechanisms for signaling IP errors. |
EtherCAT |
| IEC |
International Electrotechnical Commission: The international standards |
General |
| IEEE |
Institute of Electrical and Electronics Engineers, Inc. |
General |
| IGBT |
Insulated-gate bipolar transistor |
General |
| ISO |
International Standardization Organization |
General |
| ISO/OSI Model |
ISO Open Systems Interconnection Basic Reference Model (ISO 7498): describes the division of communication into 7 layers. |
EtherCAT |
| LED |
Light-emitting diode |
General |
| LLDP |
Lower Layer Discovery Protocol |
EtherCAT |
| MAC |
Media Access Control |
EtherCAT |
| MB |
Megabyte |
General |
| MDI |
Media Dependant Interface: Use of connector Pins and Signaling. |
EtherCAT |
| MDI-X |
Media Dependant Interface (crossed): Use of connector Pins and Signaling with crossed lines. |
EtherCAT |
| MII |
Media Independent Interface: Standardized interface between the Ethernet controller and the routing equipment. |
EtherCAT |
| MTBF |
Mean time in standard operation until fault occures |
Safety |
| MTTF |
Mean time to failure |
Safety |
| MTTFd |
Mean time to failure that cause danger |
Safety |
| MTTR |
Mean time to repair |
Safety |
| NI |
Zero pulse |
Drive |
| NSTOP |
Limit switch for CCW (left) rotation |
Drive |
| OSI |
Open System Interconnect |
EtherCAT |
| OUI |
Organzationally Unique Identifier – are the first 3 Bytes of an Ethernet-Address?, that will be assign to companies or organizations and can be used for protocoll identifiers as well (e.g. LLDP) |
EtherCAT |
| PC |
Personal computer |
General |
| PDI |
Physical Device Interface: a set of physical elements that allows access to ESC from the process side. |
EtherCAT |
| PDO |
Process Data Object |
CAN |
| PDU |
Protocol Data Unit: Contains protocol information transferred from a protocol instance of transparent data to a subordinate level |
EtherCAT |
| PELV |
|
Drive |
| PFH |
Probability of failure per hour |
Safety |
| PFHD |
Probability of dangerous failure per hour |
Safety |
| PHY |
Physical interface that converts data from the Ethernet controller to electric or optical signals. |
EtherCAT |
| Ping |
Frame that verifies whether the partner device is still available. |
EtherCAT |
| PL |
Performance level |
Safety |
| PLL |
Phase Locked Loop |
EtherCAT |
| PSTOP |
Limit switch for CW (right) rotation |
Drive |
| PTP |
Precision Time Protocol in accordance with IEEE 1588 |
EtherCAT |
| PWM |
Pulse-width modulation |
Drive |
| RAM |
Volatile memory |
General |
| RBext |
External brake resistor |
Drive |
| RBint |
Internal brake resistor |
Drive |
| RBrems / RB |
Brake resistor (= regen resistor) |
Drive |
| RES |
Resolver |
Drive |
| ROD |
Digital encoder (A quad B) |
Drive |
| RSTP |
Rapid Spanning Tree Protocol |
EtherCAT |
| RT |
Real-time, can be run in Ethernet controllers without special support. |
EtherCAT |
| RT Frames |
EtherCAT Messages with EtherType? 0x88A4. |
EtherCAT |
| RX |
Receive |
CAN |
| RXPDO |
Receive PDO |
CAN |
| RXPDO |
Receive PDO |
CAN |
| SBC |
Safe Brake Control |
Safety |
| SBT |
Safe Brake Test |
Safety |
| SDI |
Safe Direction |
Safety |
| SDO |
Service Data Object |
CAN |
| SFF |
Safe failure fraction |
Safety |
| SIL |
Safety integrity level |
Safety |
| SILCL |
Safety integrity claim limit |
Safety |
| SLS |
Safely Limited Speed |
Safety |
| SNMP |
Simple Network Management Protocol |
EtherCAT |
| SOS |
Safe Operating Stop |
Safety |
| SPI |
Serial Peripheral Interface |
EtherCAT |
| SPS |
Programmable logic control |
General |
| Src Addr |
Source Address: Source address of a message. |
EtherCAT |
| SRECS |
Safety related electrical control system |
Safety |
| SRP/CS |
Safety related part of a control system |
Safety |
| SS1 |
Safe Stop 1 |
Safety |
| SS2 |
Safe Stop 2 |
Safety |
| SSR |
Safe Speed Range |
Safety |
| STO |
Safe Torque Off |
Safety |
| STP |
Shielded Twisted Pair |
EtherCAT |
| T1 |
Lifetime of proof test interval |
Safety |
| T2 |
Diagnostic test intervall |
Safety |
| TCP |
Transmission Control Protocol |
EtherCAT |
| TM |
Mission time |
Safety |
| TX |
Transmit |
CAN |
| TXPDO |
Transmit PDO |
CAN |
| TXPDO |
Transmit PDO |
CAN |
| UDP |
User Datagram Protocol: Non-secure multicast/broadcast frame. |
EtherCAT |
| UTP |
Unshielded Twisted Pair |
EtherCAT |
| V AC |
Alternating voltage |
General |
| V DC |
DC voltage |
General |
| VDE |
Society of German Electrical Technicians |
General |
| XML |
Extensible Markup Language |
EtherCAT |
| XML Parser |
Program for checking XML schemas. |
EtherCAT |
| ZA Drive |
Acces mode Drive |
EtherCAT |
| ZA ECAT |
Access mode EtherCAT |
EtherCAT |
| ß |
Susceptibility to common cause failure |
Safety |
| λ |
Failure rate |
Safety |
| λd |
Failure rate with dangerous faults |
Safety |
| λs |
Failure rate with undangerous faults |
Safety |
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