High Country Tek emc-3L - Manual (Page 72)

Byte # Name
Byte Name is the suffix of the variable name to access a byte in Bubble Logic. For instance eec1.status would
be used to access byte 1 of the defined message EEC1 shown above.
Range: 16 Alpha/Numeric characters only with no spaces.
J1939 Program Variables
Note: Some of the following variables require the prefix “J1939.” To call the variable, i.e. “J1939.EEC1.NORSP”
would return state of the No Response bit for the EEC1 message. They are identified by an *. in the description.
*.Name.NORSP
True when a message has not been received in the “Maximum Time” period
Name.Byte#Name
Set/Get the current value of that byte of the J1939 CAN message
Range: 0 to 255
*.Name.disable
True will prevent messages from being sent. This variable defaults to false.
*.Name.srcaddr
Message that are sent from the DVC7/10 will have this number as the J1939
source address. If this value is 0 (the default) the source address will be the
DVC80 macid value.
Message Example
Message Name:
EEC1
Control Receive Data (from ECM)
Maximum Time: 50ms Engine Speed Dependent
PDU Format (PF):
240
PDU Specific (PS): 4
PGN #: = (PF*256)+PS
Priority 3 Not Required for Receive Data
Data Length 8 Message Data
EEC1.Status
- Name to access byte 1 of message
EEC1.Driveer_DMD - Name to access byte 2 of message
EEC1.Engine_Torque - Name to access byte 3 of message
EEC1. Eng_SPD_L
- Name to access byte 4 of message
EEC1. Eng_SPD_H - Name to access byte 5 of message
J1939.EEC1. NoRSP - Name to access No Response Status bit
Code Example
This example will test the validity of the engine RPM message from EEC1 and if valid, set the engineRPM
variable to the scaled real engine RPM or if not valid, set the engineRPM variable to 0 and the error_status
variable to 1.
dim engineRPM as uint
dim error_status as uint
if (j1939.eec1.norsp = 0) then
engineRPM = ((eec1.engine_spd_h * 256) + eec1.engine_spd_l) / 8
else
engineRPM = 0
error_status = 1
end if
P/N: 021-00163, Rev. A.0 - for V5.2 Tools Page | 72