CAN-8123/CAN-8223/CAN-8423 user’s manual (Revision 3.00, May/22/2009) ------
118
Step 18. Users can change the DO value of the I-8057 to be 0x90AB by using
the first RxPDO.
11-bit COB-ID (bit)
Func Code
Node ID
8-byte Data (byte)
10 9 8 7 6 5 4 3 2 1 0
RTR
Data
Length
0 1
2
3 4 5 6 7
0 1 0 0 0 0 0 0 0 0 1
0
8
AB 90 00
00
00 00 00
00
PDO
producer
PDO consumer
(CAN-8123/CAN-8223/
CAN-8423)
COB-ID
: 0x201
L
: 8
PDO-msg
: AB 90 00 00 00 00 00 00
Step 19. The first TxPDO will not be transmitted immediately even if the DI
value is changed according to the character of the transmission type 0. In
addition, the SYNC message is needed to trigger the action of the first TxPDO.
11-bit COB-ID (bit)
Func Code
Node ID
8-byte Data (byte)
10 9 8 7 6 5 4 3 2 1 0
RTR
Data
Length
0
1
2
3 4 5 6 7
0 0 0 1 0 0 0 0 0 0 0
0
0
00 00 00
00
00 00 00
00
SYNC
producer
SYNC consumer
(CAN-8123/CAN-8223/
CAN-8423)
COB-ID
: 0x80
Step 20. After transmitting the SYNC object, the 1st TxPDO is triggered, and
users can receive the 1st TxPDO from CAN-8423.
11-bit COB-ID (bit)
Func Code
Node ID
8-byte Data (byte)
10 9 8 7 6 5 4 3 2 1 0
RTR
Data
Length
0
1 2
3 4 5 6 7
0 0 1 1 0 0 0 0 0 0 1
0
2
90 AB 00
00
00 00 00
00
PDO
consumer
PDO producer
(CAN-8123/CAN-8223/
CAN-8423)
COB-ID
: 0x181
L
: 2
PDO-msg
: 90 AB 00 00 00 00 00 00