High Country Tek emc-3 - Manual (Page 17)

Page 17 of 39
emc-3 Controller Module
User Guide – Rev A
SAE J1939 CAN Messages
All J1939 CAN messages for the EMC-3 can be either enabled or disabled
except the FD (fan drive)
State message. The FD State is always transmitted
when the system is enabled. The HCT Status message will be transmitted when
it is enabled in the EE-Memory and the system is enabled.
Setting the Engine Minimum RPM to a value that is greater than 0 will enable the
EEC1 message. All other messages are enabled by entering their corresponding
control number in one of the nine Bank Control fields. All unused messages are
automatically disabled in software to prevent false timeout errors.
Current messages and their control selection codes are as follows, reference
SAE J1939-71 for specific information about the following messages and SPNs
for the emc-3;
Received Messages
Name PGN Description SPN / Measurement
Control
Selection
Code
CM1 57344
Percent Requested
Fan Speed SPN 986, Requested
Fan Speed
1
CM1 57599
Percent Requested
Fan Speed SPN 986, Requested
Fan Speed
1
ET1 65262 Engine Temperature 1
SPN 110, Engine
Temperature 2
IC1 65270 Intake Conditions 1
SPN 105, Manifold
Temperature 3
TF 65272 Transmission Fluids
SPN 177,
Transmission Oil
Temperature 4
EEC1 61444
Electronic Engine
Control 1 SPN 190, Engine
Speed N/A
Send Messages
Name PGN Description
FD 65213 SPN 975 & SPN 977, Fan Drive State
HCT
Status 65280
Status of Module Flags & I/O