
23
Configure the 2
nd
PDO by performing a SDO Write follows:
CANid
byte 0
byte 1
byte 2
byte 3 byte 4 byte 5
byte 6
byte 7
0x600+NID 0x23 ConfigOD
Address lo
ConfigOD
Address hi
0x02 0x20 0x00 PDO
OD
Address lo
PDO OD
Address hi
Enter the number of PDOs in the TPDO by performing a SDO Write as follows:
CANid
byte 0
byte 1
byte 2
byte 3
byte 4
byte 5 byte 6 byte 7
0x600+NID 0x2F ConfigOD
Address lo
ConfigOD
Address hi
0x00
0x02
Example: Map the PDO for Pressure (mmHg) and AFR to TPDO2 for the module with
NID = 0x02. (Pressure PDO OD Address = 0x2016, AFR PDO OD Address = 0x2018,
ConfigOD Address for TPDO2 = 0x1A01)
CANid
byte 0 byte 1
byte 2
byte 3
byte 4
byte 5
byte 6
byte 7
0x602
0x2F
0x01
0x1A
0x00
0x00
0x602 0x23 0x01 0x1A 0x01 0x20 0x00 0x16 0x20
0x602 0x23 0x01 0x1A 0x02 0x20 0x00 0x18 0x20
0x602
0x2F
0x01
0x1A
0x00
0x02
8.10 Entering Fuel Constants
The fuel constants are entered as single precision floating point numbers (IEEE-754) into the
module by performing a SDO Write to the following addresses.
OD
Address Factory
Default
H:C 0x500B 1.850
O:C 0x500C
0.0
N:C 0x500D
0.0
Example: Enter an H:C ratio (OD address 0x500B) of 1.9 (0x3FF33333) for the module with
NID = 0x10.
CANid
byte 0 byte 1
byte 2
byte 3
byte 4
byte 5
byte 6
byte 7
0x610 0x23 0x0B 0x50 0x00 0x33 0x33 0xF3 0x3F
The module and sensor are compatible with hydrogen fuels. To configure the module for
hydrogen fuel requires sending the ECM CANopen OS Command 0x19 (EnableH2Calc) via an
SDO Write. The H:C, O:C, N:C constants are ignored until the hydrogen fuel mode is disabled.