This code (I use Igor Pro NIDAQ tools) for selecting signal to gate data acquistion that works on a 6110 doesn't work on a 6115 - the acquisition is not gated.
Select_Signal(ImageBoardSlot, ND_RTSI_6, ND_GPCTR0_OUTPUT, ND_LOW_TO_HIGH)
Select_Signal(ImageBoardSlot, ND_IN_EXTERNAL_GATE, ND_RTSI_6, ND_PAUSE_ON_HIGH)
I send output of a clock to an RTSI line, then use that to gate data acquisition. Is there something about the 6115 that needs to be set up differently?