CANSwitch-AF2S2
High-Performance Dual-CAN to Fiber Switch User Manual
©2021 Guangzhou ZLG Electronics Technology Co.,Ltd.
70
User Manual
CAN send
buffer number
(10 frames)
65535
CAN interface transmit buffer size. The default
value is 65535x10 frames. You can set the
buffer size to adjust the balance between the
real-time performance of the CAN port and the
large-capacity buffer.
Because the speed of the optical fiber is much
higher than the transmission speed of CAN, the
CAN needs to buffer transmission if the amount
of data received by the optical fiber is too large.
This ensures that no frames are dropped, but
such a large buffer may lead to poor real-time
performance. That is, the data currently sent by
the optical fiber needs to wait for a certain
period of time to be sent out from the CAN
interface. In this case, either the client controls
the transmission speed of the optical fiber to
match the transmission speed of the CAN port;
or the buffer is changed to a smaller size and
the frame is dropped appropriately to ensure
real-time performance.
CAN transmit
buffer policy
Discard new data
when buffer is full
Policy when the CAN interface transmit buffer
is full: discard new data when the buffer is full
and discard old data when the buffer is full
Number of
TCP
connections
(number of
UDP
destination IP
segments)
1
When the CANSwitch-AF2S2 works in TCP
Sever, each CAN port can have a maximum of
200 TCP connections by default without
configuration;
When working in TCP Client mode, this item is
used to define the number of connection IP
segments allowed to be established during
communication with the corresponding CAN
port. The maximum value is 6.
When working in UDP mode, this item is used
to define the number of IP segments where the
network device communicating with the
corresponding CAN port is located. The
maximum value is 6.
