EtherCAT and the master are not limited to the ethernet packet size.
EtherCAT frames are automatically divided into smaller ethernet packets
as required. As long as you're not exceeding physical limits, (like
sending ~1,5kb at a rate of 1kHz), you should be fine.
Physically EtherCAT can address ~64k slaves on a network.
On 2021-03-29 13:22, Geller, Nir wrote:
Hi There,
I’m trying to setup one ethercat master with a very large number of
ethercat slaves.
The first obstacle I’m thinking about is a very large amount of data
sent over PDO each cycle, that will definitely exceed 1500 bytes.
In order to address this issue I want to understand if it is possible to
send more than one frame each cycle?
Another method could be using jumbo frames. Does the ethercat master
support that?
Does anybody have practical experience with such a setup?
Thanks,
Nir.
Mit freundlichem Gruß
Richard Hacker
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