Detroit Diesel DDEC VI Application And Installation page 426

COMMUNICATION PROTOCOLS
EEC3 – Electronic Engine Controller #3
Transmission Rate :
Data Length:
Data Page:
PDU format:
PDU specific:
Default priority:
PGN:
Byte: 1 Nominal Friction - Percent Torque (SPN 514)
Resolution:
Bytes: 2,3 Engine's Desired Operating Speed (SPN 515)
Resolution:
Byte 4: Engine's Desired Operating Speed Asymmetry Adjustment (SPN 519)
Ratio: 0 to 250
Byte 5: Engine Controlled Cooling Fan Losses – Percent Torque (SPN 2978)
Resolution:
Byte: 6–7 Exhaust Gas Mass (SPN 3236) — N/A
Byte: 8 After-Treatment
Bits: 7-8
Bits: 5-6
Bits: 3-4
Bits: 1-2
EEC4 – Electronic Engine Controller #4
Transmission Rate :
Data Length:
Data Page:
PDU format:
PDU specific:
Default priority:
PGN:
Bytes: 1,2 Rated Engine Power (SPN 166)
Resolution:
Rated Engine Speed (SPN 189)
Bytes: 3,4
Resolution:
Bytes: 5-8 Not Defined
6-50
250 ms
8 bytes
0
254
223
6
65,247 (0x00FEDF)
1%/Bit, -125% Offset
0.125 rpm/Bit, 0 rpm Offset
1%/Bit, -125% Offset
After-Treatment Intake Dew Point Message – N/A
After-Treatment Exhaust Dew Point Message – N/A
After-Treatment Intake Dew Point Message – N/A
After-Treatment Exhaust Dew Point Message – N/A
On Request
8 bytes
0
254
190
7
65,214 (0x00FEBE)
0.5 kW / Bit, 0 kW offset (0.67 hp / Bit, 0 hp
offset)
0.125 rpm / Bit, 0 rpm offset
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION
All information subject to change without notice. (Rev. 01/07)