Campbell Hausfeld SDM-CAN

Appendix A. Principles of Operation .........................A-1

A.1 Data Collection....................................................................................A-1

A.2 Frame Transmission.............................................................................A-1

Appendix B. A Summary of Data Types ....................B-1

Appendix C. Applications of the SDM-CAN on

Networks Complying with the J1939

SAE Standards...................................... C-1

C.1 J1939 29-Bit Identifier Format............................................................ C-1

C.2 J1939 11-Bit Identifier Format............................................................ C-1

C.3 J1939 Data Frame Format....................................................................C-2

C.4 Retrieving J1939 Accelerator Pedal Position Data using a

CR9000/CR5000 (Bus Speed 250k Baud).......................................... C-2

C.4.1 Encoding the Identifier Field Values......................................... C-2

C.4.2 Finding the Start Bit...................................................................C-3

C.5 Retrieving J1939 Accelerator Pedal Position Data using a

CR23X/CR10X (Bus Speed 250k Baud)............................................C-4

C.5.1 Encoding the Identifier Field Values......................................... C-4

C.5.2 Finding the Start Bit...................................................................C-5

Appendix D. Examples of CAN Data Frames and Data

Encoding and Decoding....................... D-1

Figures

1-1 SDM-CAN CAN-Bus Interface........................................................... 1-1

2-1 SDM-CAN Internal Jumpers................................................................ 2-3

2-2 SDM-CAN Isolation enabled............................................................... 2-3

2-3 SDM-CAN Isolation disabled.............................................................. 2-4

2-4 Using the Spring Loaded Terminal Blocks (Top Option).................... 2-5

2-5 Using the Spring Loaded Terminal Blocks (Front Option).................. 2-5

Tables

2-1 Switch Position and Addresses............................................................ 2-1

2-2 LED Status Indication.......................................................................... 2-6

2-3 CIA CAN Connector Pin Connections.................................................2-6

3-1 Typical Settings of the CAN Speed Parameters................................... 3-5

5-1 RS232 Pin Out......................................................................................5-1

C-1 Mapping of the J1939 Fields into a 29-Bit Identifier.......................... C-1

C-2 Mapping of the J1939 Fields into a 11-Bit Identifier........................... C-1

C-3 J1939 Data Frame format....................................................................C-2

C-4 Mapping of J1939 Identifier Field Values into a 29-Bit Identifier......C-3

C-5 Accelerator Pedal Position Value Byte Number..................................C-3

C-6 Mapping of J1939 Identifier Field Values into a 29-Bit Identifier.......C-5

C-7 Accelerator Pedal Position Value Byte Number...................................C-5