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Extended frame
lower limit
000000000
CAN transmit
buffer number
(600 frames)
Not
configurable
Because the speed of Ethernet is much higher than the
transmission speed of CAN, if the amount of data
received by Ethernet is too large, CAN needs to buffer
transmission, which can ensure that no frames are lost,
but such a large buffer may lead to poor real-time
performance, that is, Ethernet The data currently sent
by the network needs to wait for a certain time to be
sent out from the CAN interface. In this case, the
client needs to control the transmission speed of the
Ethernet to match the transmission speed of the CAN
port.
4.2.
Special feature
4.2.1. Heartbeat Packet
In network transparent transmission mode, users can choose to let ECAN-E01S send heartbeat packets.
Heartbeat packets can be sent to the network server. The main purpose of sending to the network is to maintain a
connection with the server, and it only takes effect in TCP Client and UDP Client modes. ECAN-E01S module
supports custom heartbeat packet content up to 128 bytes. Support custom heartbeat package.
4.2.2. Registration package
In the network transparent transmission mode, the user can choose to let the DTU send the registration packet to the
server. The registration package is used to allow the server to identify the data source device, or as a password to
obtain authorization for server functions. The registration packet can be sent when the DTU establishes a
connection with the server, or the registration packet data can be spliced into the front end of each data packet as a
