Basler Electric DGC-2020ES - Manual (Page 151)

9469200990 Rev C 143
Communication
DGC-2020ES communication ports include a mini-B USB port, CAN terminals, and provisions for an
optional Remote Display Panel. The following paragraphs describe the DGC-2020ES communication
ports in detail.
USB
The rear-panel, mini-B USB port enables local communication with a PC running BESTCOMSPlus ®
software. The DGC-2020ES is connected to a PC using a standard USB cable. BESTCOMSPlus is a
Windows
® -based communication software package that is supplied with the DGC-2020ES. A detailed
description of BESTCOMSPlus is provided in the BESTCOMSPlus chapter.
CAN
A Controller Area Network (CAN) is a standard interface that enables communication between multiple
controllers on a common network using a standard message protocol. DGC-2020ES controllers have a
CAN interface that supports the SAE J1939 protocol and the MTU protocol.
Applications using an engine-driven generator set controlled by a DGC-2020ES may also have an Engine
Control Unit (ECU). The CAN interface allows the ECU and DGC-2020ES to communicate. The ECU
reports operating information to the DGC-2020ES through the CAN interface. Operating parameters and
diagnostic information, if supported by the ECU, are decoded and displayed for monitoring.
The primary use of the CAN interface is to obtain engine operating parameters for monitoring speed,
coolant temperature, oil pressure, coolant level, and engine hours without the need for direct connection
to individual senders. Table 27 lists the ECU parameters and Table 28 lists the engine configuration
parameters supported by the DGC-2020ES CAN interface. These parameters are transmitted via the
CAN interface at preset intervals. See the column labeled Update Rate in Table 27 for transmission rates.
CAN interface connections are made at 13 (CAN H), 14 (CAN L), and 15 (SHIELD).
Table 27. ECU Parameters Obtained from CAN Interface
ECU Parameter
Metric
Units
English
Units
Update Rate
∗
SPN
Actual Engine Percent Torque % % Engine Speed
Dependent
513
Aftertreatment 1 Diesel Particulate Filter Outlet
Temperature °C °F 500 ms 3246
Air Filter Differential Pressure kPa psi 500 ms 107
Air Inlet Temperature kPa °F 1 s 172
Alarm Reset Feedback Binary (0 or 1) 1 s 2815
Ambient Air Temperature °C °F 1 s 171
Auxiliary Pressure 1 kPa psi On Request 1387
Auxiliary Pressure 2 kPa psi On Request 1388
Barometric Pressure kPa psi 1 s 108
Battery Voltage Vdc Vdc 1 s 168
Boost Pressure kPa psi 500 ms 102
Charge Air Temperature °C °F 1 s 2629
Coolant Level % % 500 ms 111
Coolant Pressure kPa psi 500 ms 109
DGC-2020ES Communication