40 9469200994 Rev —
Revision History DGC-2020ES
Firmware
Version and Date
Change
• Changed to prevent Oil Pressure Crank Disconnect from operating if
there is a valid RPM Source
• Removed the letter "DPF" from DPF Regenerate Required and DPF
Regeneration Inhibited Strings
• Added Selective Catalytic Reduction Parameters to the list of strings
displayed for SPN's in Diagnostic Trouble Codes
• Modified front panel so that if MTU Fault Codes are in effect while an
alarm or pre-alarm is in effect, the DGC-2020ES will alternate
between the Alarm or Pre-alarm display and the MTU Fault Code
display
• Added a Mains Fail Transfer Status screen on the front panel
• Changed to prevent unit from starting the machine when Battle
Override is engaged after an alarm occurs, but the OFF button has
never been pressed to clear the alarm, if the DGC pulses while in the
alarm state, at the end of the pulse cycle
• Generator Status string now displays Alarm if Battle Override is
applied after an alarm shutdown
• Made the J1939 data menu available through the HMI when the unit
is configured for Scania ECU type
• Added MTU Speed Demand Switch setting from logic capability
• Added a rest timer for cyclic cranking
• Added Mains Fail Return Fail pre-alarm and Mains Fail Max Return
Time setting
• Added John Deere to list of ECU configurations
• Changed DEF EMPTY pre-alarm to DEF LOW SEVERE
• Changed DEF ENGINE DERATE pre-alarm to DEF INDUCEMENT
• Added descriptive text for Diagnostic Trouble Codes (DTC’s)
broadcast by Mercedes, PSI, and MTU-ECU9 engine ECU’s
• Added ECU9 Fault Code list for MTU
• Added Cylinder Cutout Enable Override logic element
• Added a setting for Expected Engine ECU Address
• Added a setting for CAN Bus Low Coolant Level Alarm Enable
• Changed to set Expected Engine ECU Address to 0 when ECU
CONFIG is GM/DOOSAN.
• Added Chinese language support
• Modified checksum handling to prevent a false Checksum Fail pre-
alarm
• Changed alarm annunciation so alarms are not suppressed if the
OFF mode logic element is held true and prevents unit start attempt
if the OFF mode logic element is held true and an alarm is active
• Improved J1939 transmit buffer handling
• Changed how the DGC-2020ES sends an Acknowledgement PGN
indicating No Acknowledgement (NACK) when a request PGN is
received that had the Global Address as the Destination Address
• Improved ac line-to-line voltage calculation to allow for hardware
gain differences between voltage channel inputs
Table 18. Software Revision History
Software
Version and Date
Change
• Maintenance release (BE1-11 changes)
• Maintenance release (BE1-11 changes)