Lingenfelter L460260704 Lingenfelter CAN to Analog Gauge & Relay Output Module CAN2 v1.0 User Manual
Page 46

CAN2-002 Install & Operating Instructions
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© 2014 Lingenfelter Performance Engineering
When you do this the data entry areas in the bottom part of the window will become accessible (no
longer grayed out).
You can now manually enter the CAN message details in the "Edit User Defined Message" area. By
default the name "New Message" will be assigned to the message. We recommend that you name this
something unique to this CAN message. In the "Description" field you may want to add details about
what vehicle model years this CAN message information applies to.
The remaining fields are as follows:
CAN ID
Data Length
Byte Order
Unit
Byte # (0-7)
Bit Length (1-16)
Start Bit # (0-7)
Multiplier
Offset
Enter these values for your new CAN message and then click on the "Save Changes" button at the top
of the window.
If you don't want to save the new CAN message, click on "Cancel Add New".
The "Clear RTR Bit" check box at the bottom right of the screen is primarily for use with the MEFI5a
ECM in some applications where the exact J1939 protocol has not been followed by the OEM
manufacturer. In most cases this check box should be left alone.
You will need to determine the values for CAN ID and other variables based on manufacturer supplied
data or by reverse engineering the data using one of the CAN interface cables mentioned at the
beginning of this manual. Here is an example of what the logged CAN data may look like:
; Message Number
; | Time Offset (ms)
; | | Type
; | | | ID (hex)
; | | | | Data Length Code
; | | | | | Data Bytes (hex) ...