Parker Pro Display 12 Instruction Book
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PRO DISPLAY
HSIDE_OUT
HS OUT
I Max= 1500mA
EXTERNAL
DEVICE
SECONDARY
CIRCUIT
GND
C2:6
C2:7
Figure 10: High-side output connection principle. This shows just a single use case for
this output; an external device can also be an indicator, buzzer, etc.
4.6. Communication
4.6.1. CAN
Pro Display has four CAN buses (ISO 11898). These buses can be used with various
protocols, according to OEM’s needs. Parker currently supports J1939 protocol in Pro
Display. OEM can implement other necessary protocols. CAN buses 1, 3 and 4 have
software-controlled termination. CAN bus 2 is without termination so it can be used with
ISOBUS.
NOTICE: Internal CAN termination is controlled by application software and
therefore it is not enabled during boot-up. This shall be taken into account in end
application design. If Pro Display SW controlled CAN termination is not feasible for
end application, then external termination resistors shall be used.
CAN
Transceiver
Wire Harness
of the Vehicle
CAN_H
CAN_L
TERM_CAN
Figure 11: Software controllable CAN termination feature in Pro Display
For a list of J1939 connection considerations, refer to the SAE J1939 specifications
available through the Society for Automotive Engineers. J1939-11 covers the physical
aspects of the CAN bus, including cable type, connector type and cable lengths.
NOTICE: CAN bus maximum speed depends on physical bus length and other
characteristics of the network.
4.6.2. USB
There are two USB-host ports in Pro Display following USB 2.0 specification. These are
available for the user and can be used for:
•
Upgrading the application SW with USB memory stick
•
Downloading data into module