ICP DAS USA I-7530 Series User Manual page 44

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CAN ID Filter: Clicking this button will open the setting window of the CAN ID filter
as below figure, the user can limited the CAN converter only receives which CAN ID
messages.
When the CAN converter receives the CAN message, the CAN ID filter will decide
whether to check the bit value in the same position with the CAN ID according to the bit
value in a certain position of acceptance mask (ACM). If the bit value of a position in
the ACM is 1, the bit value in the same position of the CAN ID will be checked; if the bit
value of a position in the ACM is 0, the bit value in the same position of the CAN ID will
not be checked, for example: the ACM is 7C0 (111 1100 0000 bit) which means CAN ID
only bit 10 to 6 will be checked, and bit 5 to 0 are not checked.
Next, after determining the ACM will check which bits of the CAN ID, the CAN
converter will only receive the same CAN ID as the acceptance code (A CC) in these
bits, for example: when the ACM is 7C0, The CAN ID filter will only check the bit 10 to 6
of the CAN ID, and the ACC is 100 (001 0000 0000 bit), which means that the CAN
converter will only receive CAN messages with CAN IDs from 100 to 13F, as below
figure.
I-7530, I-7530A, I-7565, I-7530-FT, tM-7530, tM-7530A, tM-7565 User Manual Version 1.6
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