4
Change Node ID:
Allowable range 0x01 to 0x7F (hex). When you assign a Node ID (NID),
the following CAN IDs
cannot be used
by any other devices on the bus:
0x00, 0x80 + NID, 0x180 + NID, 0x280 + NID, 0x380 + NID, 0x480 + NID,
0x580 + NID, 0x600 + NID, 0x700 + NID, 0x7E4, 0x7E5.
View Module Information:
Manufacturer’s Name, Hardware Version, Software Version
Set Broadcast Rate:
All activated TPDOs are transmitted every “n” milliseconds. “n” can
be programmed. 5 ms is the minimum. Default: 5 ms.
Set Averaging Filters:
Before the data is transmitted by the module (at the broadcast rate), it
can be averaged. There are two averaging filters (alphas): one for Lambda (i.e. O2R,
IP1, IP1X, IP1R, LAMR, AFR, PHI, FAR, LAM, O2) and one for Pressure
(i.e. PR16, PR10, PCF, P, PVLT, PKPA, P, PVLT, PKPA, PBAR, PPSI). Alphas can
range from 0.001 to 1 and are used in the recursive averaging filter:
AvgData
t
= alpha x Data
t
+ (1-alpha) x AvgData
t-1
.
Where: AvgData
t
is the transmitted data at time “t”.
AvgData
t-1
is the previously transmitted data.
Data
t
is the raw data at time “t”.
This formula is executed every 5 ms regardless of broadcast rate. Note that if alpha =
1, there is no averaging and the data taken at time “t” becomes the average value at
time “t” and hence the broadcast value. Default Alpha values: 0.375.
Enter Fuel Constants:
H:C, O:C, and N:C ratios or if the fuel is H2. Defaults: H:C = 1.85,
O:C = 0, N:C = 0
Calibrate Pressure Sensor (LambdaCANp only):
Gives access to the voltage versus
pressure curve of the pressure sensor. Curves can be edited and downloaded to the
pressure sensor.
Enter Pressure Sensor Constants (LambdaCANd and LambdaCAN only):
N and C are
the gain and offset of the pressure sensor. N and C are written on a label attached to
the pressure sensor. P (psia) = N x (V - C) where V = voltage from sensor.
Span O2:
User enters displayed %O2 (TPDO data) and the actual %O2 of the span gas.
This is how you calibrate the Lambda sensor. See Appendix C.
Open Lambda/O2 Delta Tables:
These tables are used to modify the calculated O2 and
Lambda (and hence AFR, FAR, and PHI). There are two tables. The first, the Delta
O2 Table, allows modification of the calculated %O2 via a user-entered look-up table.
Delta O2 Table entries will not influence Lambda, AFR, FAR or PHI values. The
second, the Delta Lambda Table, allows modification of the calculated Lambda (and
hence AFR, FAR, and PHI) via a user-entered look-up table. The Delta Lambda table
will not influence O2 values.
Hardware Reset:
Equivalent to powering the module down then up again.
Reset TPDOs to Factory Settings:
These are the parameters displayed and transmitted.
TPDO stands for Transmit Process Data Object.
Toggle Sensor Settings:
Allows power to lambda sensor to be turned on and off (Default:
On) and enables rapid sensor warm-up scheduling (Default: On (fast)).
Toggle Pressure Compensation:
Enable and disable pressure compensation of O2 (Lambda,
AFR, FAR, PHI) data. Default: On.
Toggle TPDO CAN ID Auto Set
: Enable and disable TPDO CAN ID Auto Set.
Table 1: Task List for LambdaCAN* Modules
Summary of Contents for LambdaCAN Series
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