B-16 DGC-2020 Modbus™ Communication 9400200990 Rev I
Holding
Register
Parameter Range
Read/Write
Supported
Data
Format
Units
40372
CAN Communications Diagnostics
for use when CAN is enabled.
individual bits
are 0 or 1
R
Bit 12 - .Engine Run Time
Bit 11 – Data Failure Status.
Previous Active DTCs Cleared
Bit 10 –Active DTCs Cleared
Bit 9 -.Previous Active DTCs
Bit 8 -.Current Active DTCs
Bit 7 – Coolant Level
Bit 6 -.Oil Pressure
Bit 5 -.Coolant Temp
Bit 4 -.Engine Speed
Bit 3 –Can Error Status tx_err_passive
Bit 2 – Can Error Status
rx_err_passive
Bit 1 – Can Error Status driver sleep
status
Bit 0 – Can Error Status bus off
40373 System Config
individual bits
are 0 or 1
R W
Bit 0 – RUN
Bit 1 – OFF
Bit 2 – AUTO_RUN
Bit 3 – AUTO_OFF
Bit 4 – AUTO_ANY
40374 System Status 0 - 10 R
0 = RESET
1 = READY
2 = CRANKING
3 = RESTING
4 = RUNNING
5 = ALARM
6 = PRESTART
7 = COOLING
8 = CONNECTING
9 = DISCONNECT
10 = PULSING
40375
Used to display Value, NC, NS,
NA, and SF
R
Bits 0-2: coolant level
Bits 3-5: coolant temperature
Bits 6-8: oil pressure
Bits 9-11: engine speed
Bits 12-14: engine run time
Bit 15: NOT USED
3-Bit Status Flag Values
:
000 for Valid Data
001 for No Comms
010 for Not Sent
011 for Not Supp
100 for Sender Error
40380-81 FUTURE USE
40382 MDEC module type 1-4 R W
1 = module type 201
2 = module type 302
3 = module type 303
4 = module type 304
40383 MDEC speed demand switch 0-7 R W
0 = ANALOG_CAN
1 = UP_DN_ECU
2 = UP_DN_CAN
3 = ANALOG_ECU
5 = FREQUENCY
7 = NO_CAN_DEMAND
40384 MDEC RPM request for engine 1400-2000 R W
40385
Volvo Accelerator Pedal Position
(Trim)
0-100 R W
0 = Rated speed – 120rpm;
50 = Rated speed;
100 = Rated speed + 120rpm.
40386 Volvo Engine RPM Select 0-1 R W
0 = Primary,
1 = Secondary.
40387 J1939 source address for this unit 0-253 R W
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