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1 Introduction
1.3 System Configuration
17
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
1.3
System Configuration
1.3.1
General configuration
1.3.2
Applicable PLC
The version number can be checked by reading the last three digits of device D8001/D8101.
*1.
An FX
2NC
-CNV-IF or FX
3UC
-1PS-5V is necessary to connect the FX
3U
-J1939 to an FX
3GC
/FX
3UC
PLC.
*2.
Check the current consumption of the connected extension blocks and insert extension power supply
units if necessary.
*3.
Up to 7 units can be connected to the FX
3UC
-32MT-LT(-2) PLC.
*4.
An FX5-CNV-BUS or FX5-CNV-BUSC is necessary to connect the FX
3U
-J1939 to an FX5U/FX5UC
PLC.
*5.
Applicable for FX
3U
-J1939 firmware Ver. 1.11 and later.
Part Name
Model Name
Remarks
Communication block
FX
3U
-J1939
PLC
FX
3G
/FX
3GC
/FX
3U
/
FX
3UC
/FX5U/FX5UC
PLC
An FX
2NC
-CNV-IF or FX
3UC
-1PS-5V is necessary to connect the FX
3U
-
J1939 to an FX
3GC
/FX
3UC
Series PLC.
An FX5-CNV-BUS or FX5-CNV-BUSC is necessary to connect the FX
3U
-
J1939 to an FX5U/FX5UC PLC.
CAN bus network
-
CAN bus network
Node
-
J1939 Node or CAN Layer 2 Node
Terminating resistor
-
The CAN bus network requires terminating resistors for both network ends.
Maximum transmission
distance
-
•
SAE J1939-11: 40 m (131'2"), stubs max. 1 m (3'3") at 250 kbps
•
SAE J1939-15: 40 m (131'2"), stubs max. 3 m (9'10") at 250 kbps
•
CAN (Layer 2): 5000 m (16,404'2") at 10 kbps (with repeaters).
The transmission distance is reduced to 25 m (82') at
the maximum baud rate of 1 Mbps.
The maximum distance also depends on the specification of other
connected nodes.
Model name
Applicability
FX
3G
Series PLC
Ver. 1.00 and later (Up to 8 blocks can be extended
*2
)
FX
3GC
Series PLC
*1
Ver. 1.40 and later (Up to 8 blocks can be extended
*2
)
FX
3U
Series PLC
Ver. 2.20 and later (Up to 8 blocks can be extended
*2
)
FX
3UC
Series PLC
*1
Ver. 2.20 and later (Up to 8 blocks can be extended
*2*3
)
FX5U PLC
*4*5
Ver. 1.031 and later (Up to 8 blocks can be extended)
FX5UC PLC
*4*5
Ver. 1.031 and later (Up to 4 blocks can be extended)
Node 1
FX
3G
/FX
3GC
/
FX
3U
/FX
3UC
/
FX5U/FX5UC PLC
FX
3U
-J1939
Communication
block
Node 2
Node 3
Node 4
Node 5
Terminating
resistor
Terminating
resistor
Node 6
CAN bus network