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5 Allocation of Buffer Memories
5.10 [BFM #28] Node Address (Current Address)
41
FX
3U
-J1939 User's Manual
1
Introduc
tion
2
Specifi
cations
3
Inst
allati
on
4
Wi
rin
g
5
Al
lo
ca
tion of
Buf
fer
Memor
ies
6
J1939 C
omms
Mode
7
La
ye
r 2
C
omm
uni
cation
M
ode
8
PL
C RUN>
S
TOP
Me
ssag
es
9
Co
mmand
Interface
10
Comm
uni
cation
Setti
ngs
Proc
edure
5.10
[BFM #28] Node Address (Current Address)
BFM #28 displays the current node address of the FX
3U
-J1939. Until the FX
3U
-J1939 is successfully able to
claim an address, BFM #28 shows K254 (HFE).
Note
• No network communication can be executed until the FX
3U
-J1939 owns a valid address.
• If BFM #25 bit 4 is ON, the address in BFM #28 might change even in a running network when another
node with higher priority is added and claims the address currently used by the FX
3U
-J1939.
• The FX
3U
-J1939 will also display HFE in BFM #28 if the current node address becomes invalid, due to an
address conflict or a commanded address. If the address conflict can be solved or the commanded
address is successfully claimed, BFM #28 will show the new address. If the address conflict cannot be
solved, BFM #28 remains HFE and BFM #29 bit 9 is set to ON.
5.11
[BFM #29] Error Status
For further information on error status, refer to the following section.
Refer to Section 12.2
5.12
[BFM #30] Module ID Code
Shows the module ID code K7180 of the FX
3U
-J1939 module.
5.13
[BFM #35] CAN Transmit Message Error Counter
Displays the current value of the CAN transmit message error counter. The CAN transmit message error
counter counts up to K256.
5.14
[BFM #36] CAN Receive Message Error Counter
Displays the current value of the CAN receive message error counter. The CAN receive message error
counter counts up to K128. However, when FX
3U
-J1939 is in BUS-OFF status, K256 is stored in this BFM.
5.15
[BFM #37] Baud Rate Display
Displays the current baud rate of the CAN Controller in units of 0.1 kbps.
Value
Description
K0 to K95
Error active status
K96 to K127
Error active status/Warning level
K128 to K255
Error passive status
K256
BUS-OFF status
Value
Description
K0 to K95
Error active status
K96 to K127
Error active status/Warning level
K128
Error passive status
K129 to K255
-
(The CAN receive message error counter is increased up to K128.)
K256
BUS-OFF status