User's Manual
User Manual VC-EVCC
© 2021 Vector Informatik GmbH Version 1.3.0 23
5 Detailed Functional Description
5.1 J1939 CAN
Signal
Description
WakeupRsn_VCVCCU
The wakeup reason of the VC-EVCC
Table 5-1 J1939 CAN Signals
Functionality
CAN channel CAN1 is the J1939 vehicle CAN. The baud rate is set to 250kBit/s but can be
configured through the diagnostic channel. At each reboot, the VC-EVCC checks the stored
parameter for the configuration and adjusts itself automatically. The configuration needs to
be done only once.
It is wakeup capable and an BMS network management is implemented.
The wakeup reason is set in the signal WakeupRsn_VCVCCU.
Wake-up Reason
Description
NETWORK
wakeup caused by the J1939 CAN
SWITCH
wakeup caused by a Digital Input
PLUG_PRESENT
wakeup caused by plug present detection
CONTROL_PILOT
wakeup caused by a control pilot detection
RTC
wakeup caused by the real-time clock
CLAMP15
Wakeup caused by the Terminal15 wakeup input
Table 5-2 Wakeup Reasons
If more than one wake-up reason is set, the signaling of the wake-up reason is done with
the following priority order (from high to low):
NETWORK
CLAMP15
CONTROL_PILOT
PLUG_PRESENT
RTC
SWITCH
A charging or diagnostic request on CAN0 (Diagnostic CAN) will activate the J1939 CAN
communication.
Awake Reason:
Network startup time is not expired.
Diagnostic communication active
Terminal15 signal input is active