Advantech ADAM-5000/ECAT handleiding
Handleiding
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Figure 1.4 EtherCAT Distributed Clock
Typically, master sends a broadcast to all other slaves in the system. Once receiving
the message, slaves will latch the value of their internal clock. There are two latch
values, one is receiving and the other is returning back. Thus, the master can read all
latched values and calculate the delay for each slave (t
Propagation Delay
). Delays will be
stored into offset register. In the following, master will send a message periodically to
all other slaves in EtherCAT network to make the first slave the reference clock and
forcing all other slaves to set their internal clock by the calculated offset.
t =
+
Because synchronization between slaves in DC mode is done by internal clocks in
hardware, EtherCAT guarantee the time jitter is less than 1us.
Figure 1.5 EtherCAT Distributed Clock Jitter
Chapter 1 Understanding Your System
9
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Productinformatie
| Merk | Advantech |
| Model | ADAM-5000/ECAT |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 22504 MB |
