ZLG CANFDNET-200U User Manual page 28

CANFDNET-200U
High-Performance Dual-Channel Ethernet to CAN (FD) Converter User Manual
Arbitration domain
Data domain baud
CAN0
configuration/CAN1
configuration
Bus utilization rate
Master and slave
Settings
Controller type ISO CANFD
Work mode Normal mode
Controller clock
Customize baud
rate enable
Custom baud rate
1Mbps 80%
baud rate
5Mbps 75%
rate
Terminal
turn on
resistance
Filtering
Timing sending
Message sending
interval
Send buffer
Cache sending Discard new
policy data when full
Bus utilization
enable
collection cycle
Slave Vehicle Ethernet master and slave settings.
CAN: When the bus is only CAN messages, select CAN;
ISO CANFD: The CANFD standard specified by ISO;
Non-ISO CANFD: Non-ISO CANFD standard.
Normal mode: The CAN port can send and receive messages
properly;
Listen only mode: The CAN port is only used for monitoring and
does not answer.
40 The controller clock is fixed at 40MHz, which cannot be changed.
Enable (Yes): The baud rate calculator appears. In the calculator,
select the baud rate and copy it to the "custom baud rate";
No
Disable (No): Use "arbitration domain baud rate" and "data
domain baud rate" as the controller baud rate.
After customization is enabled, paste the customized baud rate
-
copied in the baud rate calculation tool.
The default arbitration domain baud rate is 1 Mbps, and the
sampling point is 80%. You can select the baud rate in the
drop-down box.
When the controller type is CAN controller, this item indicates the
CAN baud rate.
The default data domain baud rate is 5 Mbps, and the sampling
point is 75%; you can select the baud rate in the drop-down box.
When the controller type is CAN controller, this item is invalid.
Turn on or turn off the 120 ohm terminal resistance; only when
the CAN node is a terminal node, the terminal resistance needs
to be turned on.
Message filtering settings. Click the attribute value in this column.
- The filter setting interface appears. For description of setting
items, see Table 7.11.
Timed sending settings. Click the attribute value in this column.
- The timed sending setting interface appears. For description of
setting items, see Table 7.12.
0 Message sending interval of each frame. The value is 0-255 ms;
Send message buffer. The unit is 10 frames, and the value
ranges from 10 to 1000. That is, 100-1000 frames;You can set
the size of this buffer to adjust the balance between the real-time
performance of the CAN port and the large-capacity buffer.
Because the speed of Ethernet is much higher than CAN
transmission speed, if the amount of data received by Ethernet is
too large, CAN needs to buffer transmission. This guarantees that
100
no frames will be dropped, but such a large buffer may lead to
poor real-time performance. That is, the data currently sent by the
Ethernet can only be sent out from the CAN interface after a
certain period of time. In this case, the customer controls the
Ethernet transmission speed to match the CAN port transmission
speed; or, reduce this buffer and use appropriate frame drop to
ensure real-time performance.
Policy when the sending buffer is full:
Discard new data when full: When the buffer is full, the message
cannot be written;
Discard old data when full: When the buffer is full, discard the old
data in the send buffer. At least 10 frames are discarded each
time.
The device will report the current bus utilization information based
Yes
on the "bus utilization rate collection cycle".
The reporting period of the bus utilization rate is 200-2,000 ms; it
200
is valid when the bus utilization rate is enabled.
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User Manual