5 Allocation of Buffer Memories
5.9 [BFM #27] Node Address (Address Claim Start Address)
40
FX
3U
-J1939 User's Manual
*1.
The maximum dynamic address depends on the industry group.
For further information on industry groups, refer to following section.
Refer to Section 5.17
Node address range, State and Industry group
The relation between Node address range, State, and Industry group is as follows.
*1.
Recommended industry group
*2.
Other industry groups for reference
States
Dynamic:
The address range is available for dynamic node address assignment (arbitrary address
assignment)
Assigned:
The Address is assigned to a certain application or ECU type
Reserved:
The Address is reserved for further use by the SAE
Setting Value
State of BFM #25 bit 2
description
K128 to K206
ON
When the current address of the FX
3U
-J1939 (displayed in BFM #28) is claimed
by a node with a higher priority, the FX
3U
-J1939 will claim the next higher address.
If node address is increased beyond the maximum dynamic address
*1
, FX
3U
-
J1939 sets BFM #29 bit 1, and stores HFE ("can not claim" address) in BFM #28.
If the FX
3U
-J1939 Industry group is set to 0, BFM #25 bit 2 is forced to OFF.
K128 to K207
OFF
Even if the address is in the "dynamic" address range, the FX
3U
-J1939 will not try
to claim another address if a node with higher priority claims the address set in
BFM #27.
If the FX
3U
-J1939 cannot use the address in BFM #27 due to an address claim
from a node with higher priority, the FX
3U
-J1939 will set BFM #29 bit 1, and stores
HFE ("can not claim" address) in BFM #28.
K0 to K127
-
FX
3U
-J1939 uses the address set in BFM #27 for communication.
However, these node addresses are reserved by SAE or assigned to certain
functions within the network. If using these node address, see the Caution in
this section.
K208 to K247
K248 to K253
K254
-
"can not claim". Invalid setting.
K255
"broadcast" address. Invalid setting.
Industry Group
Maximum Address
0
Not define any dynamic addresses
1
K160
2 to 5
K207
Node Address Range
State
Industry Group
128 to 207 (H80 to HCF)
Dynamic
Group 5: Industrial, Process Control, Stationary Equipment
*1
Group 4: Marine Equipment
*2
208 to 247 (HD0 to HF7)
Assigned/Reserved
Group 3: Construction Equipment
*2
Group 2: Agricultural and Forestry Equipment
*2
128 to 160 (H80 to HA0)
Dynamic
Group 1: On-Highway Equipment
*2
161 to 247 (HA1 to HF7)
Assigned/Reserved
0 to 84 (H00 to H54)
Assigned
Global / Group 0 (for all industry groups)
85 to 127 (H55 to H7F)
Reserved
248 to 253 (HF8 to HFD)
Assigned/Reserved
254, 255 (HFE, HFF)
Assigned/Reserved
Global / Group 0 (for all industry groups)
"cannot claim" and "broadcast" address are invalid settings for BFM #27.
