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Datasheets and User Guides

App Notes

Software & Driver

 

3.1 - LJconfig

Every LabJack U12 has a local ID and serial number. The local ID is a value between 0 and 255 that can be changed by the user. The serial number is a value between 256 and 2,147,483,647 that is unique among all LabJacks and cannot be changed by the user. LJconfig is used to set the local ID of a particular LabJack. When using multiple U12s, each should be assigned a unique local ID.


Figure 3.1-1. LJconfig


Figure 3.1-1 shows the window that opens when LJconfig is run. Each time the “Refresh” button is pushed, LJconfig will scan the USB for all LabJacks. To change the local ID of a particular LabJack, push the “Change” button next to that LabJack, and the window shown in Figure 3.1-2 will appear.



Figure 3.1-2. LJconfig Change Local ID

Enter a new local ID between 0 and 255 and push the “Change” button. The new local ID will be written and the LabJack will be forced to re-enumerate.

2 comments

Soooooooooo....... where's the source code?

The source VI for LJconfig might not be with the normal U12 LabVIEW stuff, so if you don't see it in there send an email to [email protected] and we can likely send it to you.