ifm
System Manual
ecomat
mobile
PDM360NG (CR1080, CR1081, CR9042) Target V01
2011-07-28
CAN in the PDM360
Exchange of CAN data
168
9.3.1
Hints
8394
CAN-ID
1166
Depending of the CAN-ID the following CAN identifiers are free available for the data transfer:
CAN-ID base
CAN-ID extended
11 bits
29 bits
2 047 CAN identifiers
536 870 912 CAN identifiers
Standard applications
Engine management (SAE J1939),
Truck & Trailer interface (ISO 11992)
NOTE
In some devices the 29 bits CAN-ID is not available for all CAN interfaces,
data sheet.
Example 11 bits CAN-ID (base):
S
O
F
CAN-ID base
Bit 28 ... Bit 18
R
T
R
I
D
E
0
0
0
0
0
1
1
1
1
1
1
1
0 0
0
7
F
Example 29 bits CAN-ID (extended):
S
O
F
CAN-ID base
Bit 28 ... Bit 18
S
R
R
I
D
E
CAN-ID extended
Bit 17 ... Bit 0
R
T
R
0
0
0
0
0
1
1
1
1
1
1
1
1 1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
F
C
0
0
0
0
Legend:
SOF =
S
tart
o
f
f
rame
Edge of recessive to dominant
RTR =
R
emote
t
ransmission
r
equest
dominant: This message sends data
recessive: This message requests data
IDE =
Id
entifier
e
xtension flag
dominant: After this control bits follows
recessive: After this the second part of the 29 bits identifier follows
SRR =
S
ubstitute
r
emote
r
equest
recessive: Extended CAN-ID: Replaces the RTR bit at this position