Do you have a VI for setting the DTR pin?

[krt]

I need to control the DTR and/or the RTS pins. Do you have an example VI that manages this?

[Dennis_Knutson]

If you're using VISA, just use a VISA Property node (VISA>VISA Advanced palette) and select the line you want from Properties>Modem Line Settings. If you're using the old serial stuff, open serial line ctrl.vi from vi.lib>platform>_sersup.llb.