8
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DM-R260-0003A Revision 3
The R260 transmits proprietary messages on its J1939 interface (CAN1) by cyclically outpu ng PDU2 frames containing
the command values from an EATON transmi er. Table 2 shows the contents of each frame. The default transmission
period is 50 milliseconds.
Each node on a J1939 network must have a unique name. To facilitate this, the R260’s J1939 name is dependent on
the Iden ty Number. More speci
fi
cally the Iden ty number
fi
eld is broken down in to two EATON
fi
elds, Device Type &
ID. The Device Type is always de
fi
ned as value of 1 to represent an R260. However, the Iden ty Number Device ID is
unique per device and allows for a unique name. The Device ID is labeled on the R260 housing.
A J1939 node name is 8 bytes long and is de
fi
ned in the R260 as shown in Table 1. When the R260 is power cycled, the
J1939 NAME is output.
NOTE:
The
R260
will
not
transmit
CAN
messages
unless
a
transmi er
has
been
associated
to
the
R260
receiver.
See
“Associate
a
Transmi er”
to
teach
the
R260
to
use
a
speci
fi
c
transmi er.
J1939 Data Frame Structure
Name
Field
Arbitrary
Address
Capable
Industry
Group
Vehicle
Systems
Instance
Vehicle
System
Reserved
Func on
Func on
Instance
ECU
Instance
Manufacturer
Code
Iden ty
Number
Device
Type
Device
ID
Number
of
bits
1 bit
3 bits
4 bits
7 bits
1 bit
8 bits
5 bits
3 bits
11 bits
5 bits
16 bits
De
fi
ned
by
EATON EATON EATON EATON SAE EATON EATON EATON NMEA
EATON
EATON
Default
value
0 0 0 0 0 52 0 0 129 1 0..65535
Table
1
R260 J1939 NAME Fields
NOTE:
There
may
be
other
devices
in
a
J1939
network,
which
use
PGN
65280
‐
65283.
Therefore,
ECUs
should
match
the
SA
to
entries
in
its
NAME
table
to
ascertain
whether
a
par cular
PGN
frame
originates
from
an
EATON
R260.
The
NAME
of
the
R260
is
given
in
Table
1.
