Basler Electric DGC-2020ES - Manual (Page 155)

9469200990 Rev C 147
ECU Contact Control - Output Select
Select whether the RUN output relay or the PRE (Prestart) output relay closes to give the ECU its
“energize to run” signal. In some implementations, this relay may actually be providing ECU power.
ECU Contact Control - Pulsing Enable
Select if the ECU is not to be on line at all times. Often ECUs are allowed to go “off line” to conserve
battery drain when the engine is not running. The DGC-2020ES will “pulse” it periodically to force it to be
active to allow the DGC-2020ES to read data such as coolant temperature and coolant level. This is
required if the DGC-2020ES is to report low coolant temperature conditions (which may indicate a failure
of a block heater), or low coolant level conditions (if a leak occurs while the machine is not running).
Pulsing is also used to check the integrity of CAN communications when the machine is not running.
ECU Related Time Values - Engine Shut Down
Set this parameter for a value longer than the duration required to stop the engine after being shut down.
The ECU is pulsed after this time expires. If the time is too short, the pulse may occur while the engine is
still turning which could cause a brief re-start and possibly damage the flywheel and starter system.
ECU Related Time Values - Pulse Cycle Time
Set this parameter for the desired time between ECU pulse cycles.
ECU Related Time Values - Settling Time
This parameter is the duration of the “on line” time of the pulse cycle during which the DGC-2020ES
reads data from the ECU. The settling time should be set long enough so that any ECU parameters that
require time to “settle down” after the ECU is on line can do so. Since the DGC-2020ES may use some of
the ECU data for alarm or pre-alarm annunciation, it is important that the data have time to settle.
ECU Related Time Values - Response Timeout
This setting defines the amount of time that the DGC-2020ES will wait to receive data from the ECU
during a pulse cycle or start attempt. If no data is received during this time in a pulse cycle, a LOSS OF
ECU COMMS pre-alarm is annunciated. If no data is received in this time during an engine starting
attempt, a LOSS OF ECU COMMS alarm is annunciated.
Figure 75. Settings Explorer, Communications, CAN Bus, CAN Bus Setup
ECU Setup
The following paragraphs describe the settings on the ECU Setup screen. This screen is found in the
BESTCOMSPlus Settings Explorer, under the Communications, CAN Bus category. If using the front
panel, navigate to Settings > Communications > CAN Bus Setup > ECU Setup. Refer to Figure 76.
ECU Type
The DGC-2020ES can be configured for Standard, Volvo Penta, MTU MDEC, MTU ADEC, MTU
ECU7/ECU8, GM/Doosan, Cummins, MTU Smart Connect, Scania, or John Deere.
DGC-2020ES Communication