Communication
47
Communication
What this chapter contains
This chapter describes the communication on an EtherCAT®
network.
EtherCAT® frame structure
In EtherCAT, the data between the master and the slaves is
transmitted in Ethernet frames. An EtherCAT® Ethernet frame
consists of one or several EtherCAT® telegrams, each addressing
individual devices and/or memory areas. The telegrams can be
transported either directly in the data area of the Ethernet frame or
within the data section of an UDP datagram transported via IP.
The EtherCAT® frame structure is pictured in following figure
EtherCAT® frame structure.
Each EtherCAT® telegram consists
of an EtherCAT® header, the data area and a working counter,
which is incremented by all EtherCAT® nodes that are addressed
by the telegram and have exchanged associated data.
Figure 6. EtherCAT® frame structure.
Содержание RECA-01
Страница 1: ...ABB Drives User s Manual EtherCAT Adapter Module RECA 01 ...
Страница 2: ...EtherCAT is registered trademark and patented technology licensed by Beckhoff Automation GmbH Germany ...
Страница 4: ......
Страница 6: ...Safety instructions 6 ...
Страница 24: ...Quick start up guide 24 ...
Страница 26: ...Mechanical installation 26 ...
Страница 28: ...Electrical installation 28 ...
Страница 32: ...Master configuration 32 ...
Страница 56: ...Communication 56 ...
Страница 72: ...CoE object dictionary 72 ...
Страница 80: ...CoE Error codes 80 ...
Страница 82: ...Definitions and abbreviations 82 ...