
REVISION HISTORY
The following information provides a historical summary of the changes made to the DGC-500 hardware,
firmware, and software. The corresponding revisions made to this instruction manual (9355400990) are
also summarized. Revisions are listed in reverse chronological order.
BESTCOMS Software
Version and Date Change
1.05, 03/05 •Added configurable ECU contact, pulsing, and sleep mode disables,
and single-phase A-C sensing.
1.04, 09/04 •Added generator protection, event log, real-time clock, and run
statistics.
1.03, 10/03 •Added Engine Start/Stop Configuration setting to accommodate Volvo
Penta EDC applications. Added CANBus Address setting and the
Genset kW Rating setting.
1.02, 03/03 •Added settings for support of SAE J1939 interface and 400 Hz
operation.
1.01, 07/02 •Increased the maximum setting of the Global Sender Failure Alarm
Time Delay from 10 seconds to 30 seconds
1.00, 03/02 •Initial release
Application Firmware
Version and Date Change
3.06, 03/05 •Added configurable ECU contact, pulsing, and sleep mode disables,
and single-phase A-C sensing.
3.05, 09/04 •Added generator protection, event log, real-time clock, run statistics,
and sleep mode.
2.04, 10/03 •Added Engine Start/Stop Configuration setting to accommodate Volvo
Penta EDC applications. Added CANBus Address setting and Genset
kW Rating setting.
2.03, 03/03 •Added support for SAE J1939 interface and 400 Hz operation.
2.01, 07/02 •Increased the maximum Sender Failure Alarm time delay setting from
10 seconds to 30 seconds.
1.00, 03/02 •Initial release
Hardware (Standard
Order P/N)
Q, 12/04 •Modified current metering circuitry.
P, 11/04 •BESTCOMS version 1.04/01 released to address compatibility issue
with MicrosoftWindowsXP SP2.
N, 09/04 •Implemented a higher-performance microprocessor and added an
external memory (EEPROM) chip.
M, 06/04 •Increased moisture resistance by adding conformal coating to the
printed circuit board assembly.
L, 10/03 •Implemented firmware version 2.04.XX and BESTCOMS version
1.03.XX.
9355400990 Rev H DGC-500 Introduction iii