SDM-CAN 辅助程序是一款免费的,RTDAQ 实时数据采集软件的附加程序。这个程序通过配置SDM-CAN设备的过程提供给用户,连接SDM-CAN 至数据采集器,发送程序到数据采集器,随后设置数据采集器从CANbus网络收集特定数值。
用户的计算机必须安装了 RTDAQ,才可安装SDM-CAN 辅助程序。
There are two main parts of the SDM-CAN Helper:
Settings in the SDM-CAN device can be checked and changed without having to use the diagnostic port. There are screens for checking for received CAN messages and transmitting specific messages onto the CAN network. Testing or checking of SDM-CAN decoding parameters can be tested from the Helper without having to manually generate a new program for every iteration. There are screens for assisting users with the math for CAN identifiers, data types, and start bits. Also included are "Pick List Tester" screens for the testing of signals in SDM-CAN pick lists.
The "click-on hotspot" boxes with green text take the user to a specific RTMC screen for performing the listed operation. Red items in white boxes can be changed. However, red items in white boxes require an execution of the "Execute Program Changes" button to take effect. These items are tied to the data type constants in the SDMCAN() instructions in the Helper data logger program. The accumulated pending program changes are tracked and can be applied by clicking on the "Execute Program Changes" button at any time. Changes can be discarded by clicking on the "Discard Changes" button. Blue items in white boxes can be changed and take effect in real-time. They do not require pressing the "Apply Changes" button to become effective. Boxed items with grey background boxes are "view only" items.
The "RxOnly Message" screen can be used for checking broadcast messages. The "TxRx Message" screen can be used to check/test request response type messaging. Specific protocol versions of these screens are J2190, J1979 PID's, and J1939-71 SPNs. There is also a real-time view screen of the CAN Rx data frame that is useful for troubleshooting bit data.
The "Test Pick List" screens allow pick lists to be downloaded to the data logger's CPU memory. Signal items in these pick lists can be tested manually, one at a time. The "Automated Mode" option automatically tests each pick list item and writes the results into a tested pick list file in the data logger CPU memory.
Current Version: 1.0
Add-on package for RTDAQ. Assists users of the SDM-CAN device.
See the SDM-CAN Helper Overview for more information about this product.
Note: The SDM-CAN Helper will only be installed if a valid installation of RTDAQ already exists on the computer.
SDM-CAN Helper: 1
The blog article "How to Navigate the World of Software Upgrades, Patches, and Trials" explains the difference between patches (free of charge) and upgrades (for a fee). This example quickly shows the difference between an upgrade and a patch:
Upgrade | Patch |
Major version change, such as 1.3 to 2.0 |
Minor version change, such as 1.3 to 1.4 |
Typically requires purchase for a fee |
Free of charge |