11.10
Option
-
EtherCAT
®
EtherCAT
®
is a state
-
of
-
the
-
art industrial Ethernet solution suiting the needs
of modern industrial automation applications. EtherCAT
®
provides
deterministic (real
-
time) distributed control. What makes EtherCAT
®
stand out
when compared to other real
-
time Ethernet solutions are its unmatched
performance, flexibility and cost effectiveness.
This chapter explains some of the generic EtherCAT
®
protocol principles. It
provides a basic understanding of how EtherCAT
®
works.
Table 11.3: Terms and abbreviations
Term/
abbreviation
Description
CAN
Controller Area Network
CiA
CAN in Automation
CoE
CAN open over EtherCAT
®
DC
Distributed Clocks
PDRAM
Dual Ported Random Access Memory
ESC
EtherCAT
®
Slave Controller
ESI
EtherCAT
®
Slave Information
ETG
EtherCAT
®
Technology Group
FMMU
Fieldbus Memory Management Unit
FoE
File access over EtherCAT
®
IEEE
Institute of Electrical and Electronics Engineers
ESM
EtherCAT
®
State Machine
OSI Model
Open Systems Interconnection model
PDO
Process Data Object
PTP
Precision Time Protocol
SDO
Service Data Object
SII
Slave Information Interface
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