SDM-CANDatalogger-to-CANbus InterfaceRevision: 8/13 Copyright © 2001-2013Campbell Scientific, Inc.
SDM-CAN Datalogger-to-CANbus Interface By this process the SDM-CAN can capture data on the CAN-Bus and filter out packets of interest to the user. Wit
SDM-CAN Datalogger-to-CANbus Interface • Additional I/O port for signaling to the datalogger that data is available, e.g. using an interrupt function
SDM-CAN Datalogger-to-CANbus Interface • Where the DC-DC converter is not used, and power is provided to the isolated CAN driver circuits by an exter
SDM-CAN Datalogger-to-CANbus Interface Please see Section 3, Programming CR10X, CR7 and CR23X Dataloggers to use the SDM-CAN, before using address F (
SDM-CAN Datalogger-to-CANbus Interface 3) If running in isolated mode decide whether the SDM-CAN will supply power via a built-in DC-DC converter for
SDM-CAN Datalogger-to-CANbus Interface This jumper block is used to select isolated or non-isolated CAN-Bus interface. The jumper block can be removed
SDM-CAN Datalogger-to-CANbus Interface FIGURE 2-3. SDM-CAN Isolation disabled 2.3 Connection to the Datalogger and Power Supply To allow communicat
SDM-CAN Datalogger-to-CANbus Interface the tip of a small flat blade screw driver (3mm width) into the rectangular hole above the circular terminal ho
SDM-CAN Datalogger-to-CANbus Interface An additional I/O terminal is provided on the SDM-CAN for use with dataloggers which support interrupt driven l
SDM-CAN Datalogger-to-CANbus Interface TABLE 2-3. CIA CAN Connector Pin Connections Pin Function 1 Reserved, NOT INTERNALLY CONNECTED. 2 CAN Low. 3
SDM-CAN Datalogger-to-CANbus Interface 3. Programming CR10X, CR7 and CR23X Dataloggers to use the SDM-CAN This section describes the programming meth
SDM-CAN Datalogger-to-CANbus Interface CAN errors detected and to also determine the general status of the SDM-CAN interface. 3.2 System Limitations
SDM-CAN Datalogger-to-CANbus Interface Data stored in packets on the CAN-Bus can be encoded in a number of different ways. The SDM-CAN itself can cat
SDM-CAN Datalogger-to-CANbus Interface description of the data types, entry of the instruction and how to index (‘--’) parameters. In some previous v
SDM-CAN Datalogger-to-CANbus Interface range of baud rates. However, be sure to check that these are correct for your specific network before using th
SDM-CAN Datalogger-to-CANbus Interface The relationship between these times is summarized by: tbit=tq+tTSEG1+tTSEG2 t TSEG1 (in seconds) is set using
SDM-CAN Datalogger-to-CANbus Interface special meaning of the ID; each packet is only referenced by the full ID. The CAN 2.0A standard uses an ID with
SDM-CAN Datalogger-to-CANbus Interface For convenience the start bit can be referenced from either end of the frame (see parameter 09 below), but this
SDM-CAN Datalogger-to-CANbus Interface values previously written into the memory buffer. This allows complex bit patterns to be defined, sometimes cha
SDM-CAN Datalogger-to-CANbus Interface 3.3.5.5 Set-up previously built data frame as a Remote Frame Response (type 26): When parameter 08 is set to
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SDM-CAN Datalogger-to-CANbus Interface 1 Bus-On; the SDM-CAN is involved in bus activities. One of the error counters is equal to or greater than
SDM-CAN Datalogger-to-CANbus Interface 3-7 Currently unused 8 Set low power standby mode. The SDM-CAN cannot wake from this state as a result of C
SDM-CAN Datalogger-to-CANbus Interface Please refer to the CAN standards and your own network documentation for a more detailed explanation of the swi
SDM-CAN Datalogger-to-CANbus Interface For some data types this parameter will be overridden by a fixed number of bits required by the data type; eve
SDM-CAN Datalogger-to-CANbus Interface except those where the datalogger can be made the master (i.e. where it requests data from the remote devices w
SDM-CAN Datalogger-to-CANbus Interface following the end of one interrupt before the SDM-CAN will raise the port for another interrupt. This could be
SDM-CAN Datalogger-to-CANbus Interface Each buffer can be configured as a standard ring buffer with no trigger or filter associated with it. The buffe
SDM-CAN Datalogger-to-CANbus Interface b) If (parameter 9) is one, the number of bits (parameter 10) is set to 8 with the index (--) NOT SET and numb
SDM-CAN Datalogger-to-CANbus Interface 1: SDM-CAN (P118) 1: 0 SDM Address 2: 4 Time Quanta 3: 5 Tseg1 4: 2 Tseg2 5: 1024 ID Bit
SDM-CAN Datalogger-to-CANbus Interface ;Send switch settings to SDM-CAN 7: SDM-CAN (P118) 1: 0 SDM Address 2: 2 Time Quanta 3: 5
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SDM-CAN Datalogger-to-CANbus Interface 13: 1.0 Mult 14: 0.0 Offset *Table 2 Program 02: 0.0000 Execution Interval (seconds) *Table 3 Subrou
SDM-CAN Datalogger-to-CANbus Interface ;{CR23X} ; *Table 1 Program 01: 1 Execution Interval (seconds) ;Set flag 1 high to set SDM-CAN internal sof
SDM-CAN Datalogger-to-CANbus Interface 7: 0 ID Bits 24..28 8: 1 Rx, unsigned int, MSB 1st 9: 1 Start Bit No. 10: 16 -- No.
SDM-CAN Datalogger-to-CANbus Interface ;Retrieve Data from CAN network B 3: SDM-CAN (P118) 1: 01 SDM Address 2: 4 Time Quanta 3: 5 Tseg1
SDM-CAN Datalogger-to-CANbus Interface Section 3, Programming CR10X, CR7 and CR23X Dataloggers to use the SDM-CAN. To avoid duplication this section o
SDM-CAN Datalogger-to-CANbus Interface require an update to your CRBASIC editor to get the full help screens. Contact Campbell Scientific if you need
SDM-CAN Datalogger-to-CANbus Interface Const CMULT1 = 0.4 'Multiplier Const COSET1 = 0 'Offset Dim CANBl
SDM-CAN Datalogger-to-CANbus Interface '\\\\\\\\\\\\\\\\\\\\\\\\\\\ PROGRAM /////////////////////////// BeginProg &apo
SDM-CAN Datalogger-to-CANbus Interface '\\\\\\\\\\\\\\\\\\ ALIASES & OTHER VARIABLES ////////////////// Alias CANBlk1(1) = Accel_Pedal &ap
SDM-CAN Datalogger-to-CANbus Interface 8 CTS input. 9 RI input. To connect the SDM-CAN to most computers use a NULL Modem cable. When you try to com
Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to spec
SDM-CAN Datalogger-to-CANbus Interface The CANBUS is scanned for the following baud rates: 20K, 50K, 125K, 250K, 500K, 800K and 1 Megabaud. As soon as
SDM-CAN Datalogger-to-CANbus Interface or by a datalogger communications error, which will force the SDM-CAN to be reset. If parameters are omitted,
SDM-CAN Datalogger-to-CANbus Interface 44 For downloading software you will need the following: • Device Configuration Utility (DevConfig), which is
Appendix A. Principles of Operation A.1 Data Collection The SDM-CAN operation is based on a number of sequential buffers. The hardware has a dedica
Appendix A. Principles of Operation A-2 A.2 Frame Transmission When the datalogger program is first run it will set-up the SDM-CAN BINs and buffers.
Appendix B. A Summary of Data Types A summary table of the data types is given below for quick reference. Data Type Description 1 Retrieve data;
Appendix B. A Summary of Data Types B-2 Data Type Description 29 Read SDM-CAN status Status Description 0000 The SDM-CAN has bus activities; erro
Appendix C. Application of the SDM-CAN on Networks Complying with the J1939 SAE Standards This Appendix describes the use of the SDM-CAN in applicat
Appendix C. Application of the SDM-CAN on Networks Complying with the J1939 SAE Standards Details of identifier field values can be found in the SAE
Appendix C. Application of the SDM-CAN on Networks Complying with the J1939 SAE Standards TABLE C-4. Mapping of J1939 Identifier Field values into
Table of Contents 3.3.10 Multiplier (Parameter 13:)... 25 3.3.11 Offset (Parameter 14:)...
Appendix C. Application of the SDM-CAN on Networks Complying with the J1939 SAE Standards Due to current system constraints the ID parameter must be
Appendix C. Application of the SDM-CAN on Networks Complying with the J1939 SAE Standards C.5.2 Finding the Start Bit The byte number of the Accele
Appendix C. Application of the SDM-CAN on Networks Complying with the J1939 SAE Standards C-6
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding This Appendix gives examples of typical CAN data frames with worked examples
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding Examples of values within a data-frame 16bit data frame with a one value 16bit
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 32bit data frame with two 16bit unsigned integer values LSByte first. Rxed Bit
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 24bit data frame with two 12bit unsigned integer values LSByte first Rxed Bit
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 16bit data frame with one 12bit signed integer value LSByte first Rxed Bit ord
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 40bit data frame with one 32bit IEEE floating point value LSByte first Rxed Bi
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 16bit data frame with one 16bit unsigned integer value MSByte first Rxed Bit o
Table of Contents C.4 Retrieving J1939 Accelerator Pedal Position Data using a CR9000/CR5000 (Bus Speed 250k Baud)...
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 32bit data frame with two 16bit signed integer values MSByte first Rxed Bit or
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 24bit data frame with two 12bit unsigned integer values MSByte first Rxed Bit
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 16bit data frame with one 12bit unsigned integer value MSByte first Rxed Bit o
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding 40bit data frame with one 32bit IEEE floating point value MSByte first Rxed Bi
Appendix D. Examples of CAN Data Frames and Data Encoding and Decoding D-12
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SDM-CAN Datalogger-to-CANbus Interface 1. Introduction The SDM-CAN interface is designed to allow a Campbell Scientific datalogger to sample data di
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