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CAN-8123/CAN-8223/CAN-8423 user’s manual (Revision 3.00, May/22/2009) ------
141
5.3 EMCY Communication Set
5.3.1 EMCY COB-ID Parameter
The EMCY COB-ID is similar to the PDO COB-ID. It can be a default value
or can be the value defined by users via SDO communication methods. This
COB-ID is stored in the object 0x1014, and the data format is shown in the
following table. Before using the EMCY mechanism, bit 31 of the EMCY
COB-ID needs to be confirmed.
Bit Number
Value
Meaning
31 (MSB)
0
EMCY exits (EMCY is valid)
1
EMCY does not exist (EMCY is not valid)
30
0
reserved (always 0)
29
0
11-bit ID (CAN 2.0A)
1
29-bit ID (CAN 2.0B)
28-11
0
If bit 29=0
x
If bit 29=1: 28-11 bits of 29-bit COB-ID
10-0 (LSB)
x
10-0 bits of COB-ID