VIPA System 300V - Page 116

Chapter 4 CANopen Manual VIPA System 300V
4-44 HB130E - IM - Rev. 08/26
Index Sub-
index
Name Type Attr. Map. Default value Meaning
0x2100 0 KILL EEPROM Boolean wo N KILL EEPROM
The KILL EEPROM is supported for reasons of compatibility.
Writing to index 0x2100 deletes all stored identifiers from the EEPROM.
The CANopen coupler start at the next start-up (reset) with the default
configuration.
Index Sub-
index
Name Type Attr. Map. Default value Meaning
0x2101 0 Number of
Elements
Unsigned8 ro N 0x02 SJA1000 Message Filter
1 Acceptance
mask
Unsigned8 ro N Acceptance mask
2 Acceptance
code
Unsigned8 ro N Acceptance code
With the help of the acceptance filter, the CAN controller is able to allow
passing of received messages to the RXFIFO only when the identifier bits
of the received message are equal to the predefined ones within the
acceptance filter. The acceptance filter is defined via the acceptance code
register and the acceptance mask register.
These filters are updated after start-up and communication reset.
Acceptance mask: The acceptance mask register qualifies which of the
corresponding bits of the acceptance code are relevant (AM.X = 0) and
which ones are ‘don’t care’ (AM.X = 1) for acceptance filtering.
Acceptance code: The acceptance code bits (AC.7 to AC.0) and the eight
most significant bits of the message identifier (ID.10 to ID.3) have to be in
the same bit positions which are marked as relevant by the acceptance
mask bits (AM.7 to AM.0). If the following condition is fulfilled, the
messages are accepted:
0(ID.10 to ID.3) ≡ (AC.7 to AC.0)] ∨ (AM.7 to AM.0) ≡ 11111111
KILL EEPROM
SJA1000
message filter