4-12 DGC-2020 BESTCOMSPlus Software 9400200990 Rev I
Figure 4-12. Clock Setup
A
UTC Offset (min): Adjustable from -1,440 to 1,440 minutes in increments of 1.
B
DST Configuration: Disabled, Fixed, or Floating.
C
Start Day:
Fixed DST Configuration
Month (January to December), Day of Month (1 to 31 in increments of 1), Hour (0 to 23 in
increments of 1), Minute (0 to 59 in increments of 1).
Floating DST Configuration
Month (January to December), Occurrence of Day (First to Fourth, or Last), Weekday (Sunday to
Saturday), Hour (0 to 23 in increments of 1), Minute (0 to 59 in increments of 1).
D
End Day:
Fixed DST Configuration
Month (January to December), Day of Month (1 to 31 in increments of 1), Hour (0 to 23 in
increments of 1), Minute (0 to 59 in increments of 1).
Floating DST Configuration
Month (January to December), Occurrence of Day (First to Fourth, or Last), Weekday (Sunday to
Saturday), Hour (0 to 23 in increments of 1), Minute (0 to 59 in increments of 1).
E
Bias: Hour (0 to 23 in increments of 1), Minute (0 to 59 in increments of 1).
COMMUNICATIONS
DGC-2020 communication settings include setup parameters for CANBus, modem, and RS-485
communication.
CANBus Setup
The DGC-2020 CANBus interface provides high-speed communication between the DGC-2020 and the
engine control unit (ECU) on an electronically controlled engine. When ECU support is enabled
A
, the
DGC-2020 will ignore the analog coolant temperature, oil pressure, and engine speed inputs and rely
upon the ECU for these parameters. The DGC-2020 will also stop calculating engine run time and begin
using the run time recorded by the ECU.
When enabled
B
, the DGC-2020 will receive and retain unsolicited diagnostic trouble codes (DTCs) from
an ECU with DTC capabilities.
A DGC-2020 operating on a CAN network is identified by a unique address number
C
.
The DGC-2020 can be configured for Standard, Volvo Penta∗, or MTU MDEC
D
. Configuring the DGC-
2020 for Volvo Penta necessitates the configuration of two additional settings: Speed Select and
Accelerator Position. The Speed Select setting
E
configures the Volvo Penta ECU to operate the engine at
the primary or secondary base speed. If the engine is configured by Volvo for 60 Hz applications, the
primary base speed is 1,800 rpm and the secondary base speed is 1,500 rpm. If the engine is configured
by Volvo for 50 Hz applications, the primary base speed is 1,500 rpm and the secondary base speed is
1,800 rpm. The Accelerator Position setting
F
is expressed as a percentage and tells the Volvo Penta ECU
where to set the engine speed (trim) relative to the base speed. The range of the setting is the base
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