Advantech ADAM-5000/ECAT handleiding
Handleiding
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• Read, write, read-write
• Access to a specified slave device through direct addressing
• Access to multiple slave devices through logical addressing
Logical addressing is used for the cyclical exchange of process data. The header
and data are used to specify the operation that the slave must perform, and the
working counter is updated by the slave to let the master to know that a slave has
processed the command.
Every EtherCAT datagram ends with a 16 Bit Working Counter (WKC). The Working
Counter counts the number of devices that were successfully addressed by this
EtherCAT datagram.
Figure 1.2 EtherCAT Protocol
EtherCAT datagrams are processed before receiving the complete frame.
In case data is invalid, the frame check sum (FCS) is not valid and the slave will not
set data valid for the local application.
Topology
EtherCAT supports a variety of network topologies, including line, tree, ring and star.
The line and tree topologies are more conducive to fieldbus applications because they
require fewer connections and utilize a much simpler and more flexible cabling schema
that switches and hubs are not necessary for lines or trees topology.
Chapter 1 Understanding Your System
7
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Productinformatie
| Merk | Advantech |
| Model | ADAM-5000/ECAT |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 22504 MB |
