JLG 740AJ, Service And Maintenance Manual, Page: 510 / 582

SECTION 6 - JLG CONTROL SYSTE M
6-50 3121160
6.2 CANBUS COMMUNICATIONS
CANbus: CAN (Control Area Network) is a two wire differential
serial link between the Platform Module and Ground Module
providing bi-directional communications.
Two-wire: One wire (red) is driven high (5v) and the other low
(black) (0v) to send a signal; both wires ”float” (2.5v) when no
signal is being sent.
Differential: Any electrical line noise can affect the high or the
low wires but never both, so communications is not corrupted.
Serial Link: Messages are being sent bit by bit along the wires;
the high bus speed allow all modules to be constantly
updated around 20 times per second. Typical traffic is 300 -
500 messages per second.
A complete CANbus circuit is approximately 60 ohms, which
can be verified at the ”T” fitting inside the ground station. Each
individual circuit from the modules is approximately 120
ohms.
Temp Cutout X
0
X
0
X X
X 1 X 1 X X
Plat Lvl Ovr Cut
0 0 0 0 0 0
1 1 1 1 1 1
Water in Fuel Sen-
sor X
0
X X X X
X 1 X X X X
Dual
Capacity 0 0 0 0 0 0
1 1 1 1 1 1
BOLD BLUE text indicates the default setting. Plain text indicates another available
selection. RED ITALIC text indicates the default when option is factory installed. SHADED
CELLS indicate hidden menu or selection.
Table 6-6. Machine Configuration Programming Settings
740 AJ
ANSI USA ANSI Expor
t
CSA CE Au
st
ra
lia
Japa
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