Can Rx Fifo Address - ICP DAS USA ECAN-240-FD User Manual

5.1.1.2 CAN Rx FIFO Address

The CAN1/2 port support CAN Rx FIFO. By using Modbus function code 0x04 read command to
read the protocol base address of "0" or "4096" and data length in multiples of 40 words, user
can get maximum 10 CAN/CAN Messages from CAN1/2 Rx FIFO at one time.
CAN1 Rx FIFO Message #1 ~ #10
Protocol
Base Address Base Address
(0xxxx)
00000 ~ 00399 30001 ~ 30400
CAN2 Rx FIFO Message #1 ~ #10
Protocol
Base Address Base Address
(0xxxx)
04096 ~ 04135 34097 ~ 34136
ECAN-240-FD (Modbus TCP to 2-port CAN FD Gateway) User Manual
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PLC Words
(3xxxx)
40 * 10
PLC Words
(3xxxx)
40 * 10
Description
CAN1 Rx FIFO Message #1 ~ #10 (N: 1~10)
Read "Protocol Base Address: 00000" and
"Word No: 40 * N", you can get N CAN
messages from CAN1 Rx FIFO (N: maximum 10
messages). When there is no data in Rx FIFO
#N, the corresponding 40 words data content
will be 0.
Description
CAN2 Rx FIFO Message #1~ #10 (N: 1~10)
Read "Protocol Base Address: 04096" and
"Word No 40 * N", you can get N CAN
messages from CAN2 Rx FIFO (N: maximum 10
messages). When there is no data in Rx FIFO
#N, the corresponding 40 words data content
will be 0.
Version 1.0.0
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