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2.10 ADU7 Supplemental Display

ECUMaster ADU7 auxiliary display for engine and electrical system metrics not covered by Dakota Digital HDX.

ECUMaster ADU7

Type: Advanced Display Unit

Model: ADU7 Rev 2 (IP65)

Manufacturer: ECUMaster

Product Page: ECUMaster ADU7

Mounting: A-pillar cage (driver side)

Power Source: PMU OUT14 (15A, SWITCHED)

Specifications

Spec Value
Display 7" TFT
Resolution 800 x 480
Rating IP65
CAN Interfaces 2× CAN 2.0B
CAN Speeds 250, 500, 1000 kbps
Power Draw ~1-2A

Purpose

Supplemental display for metrics the Dakota Digital doesn't show well:

Data Source Notes
Boost pressure PMU An 5 0-5V transducer
EGT PMU An 6 Thermocouple + amplifier
START battery voltage PMU internal Already monitored
AUX battery voltage PMU An 7 Voltage divider
PMU output currents PMU internal Per-channel monitoring
PMU faults/warnings PMU internal Overcurrent, thermal
Oil temp PMU via J1939 Pass-through from Cummins
Coolant temp PMU via J1939 Pass-through from Cummins

Integration

Cummins ECM ──J1939──► PMU24 ──ECUMaster CAN──► ADU7
                         │
              Analog sensors (boost, EGT, trans temp, AUX voltage)
  • PMU24 reads J1939 engine data and analog sensor inputs
  • PMU24 broadcasts on ECUMaster CAN protocol
  • ADU7 receives natively - same manufacturer, no custom templates

Wiring

Connection Wire Source Notes
Power (12V) 16 AWG PMU OUT14 SWITCHED with ignition
Ground 16 AWG TBD A-pillar ground point
CAN H 20 AWG PMU24 CAN 2 ECUMaster protocol
CAN L 20 AWG PMU24 CAN 2 Twisted pair with CAN H

Outstanding Items

  • Confirm PMU24 CAN output configuration for ADU7 data
  • Determine A-pillar ground point location
  • Select boost pressure transducer (0-5V, range TBD based on expected boost)
  • Select EGT probe and amplifier
  • Design AUX battery voltage divider circuit for PMU analog input
  • Configure ADU7 display pages/layout
  • Route CAN wiring from PMU (firewall) to A-pillar