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Why Do I Get Error -1074118644 Using an NI Switch? When using an NI switch, I get Error -1074118644: No legacy device supports URL: http://digital.ni.com/public.nsf/allkb/8BAC537C339309C58625746E00703C08

Unexpected Relay Behavior on [c]FP-RLY-42x Modules When I write to one or more channels on a [c]FP-RLY-42x module, other channels on that module or adjacent modules exhibit unexpected behavior. Why is that? URL: http://digital.ni.com/public.nsf/allkb/246152C8859CE715862573C60070728F

NI-Switch Error -1074118644 Occurs When DAQmx Name and VISA Alias Are the Same I have configured my DAQmx-supported NI switch such that the DAQmx name is the same as the device's VISA alias. When I attempt to initialize my switch with a valid topology using niSwitch Initialize with Topology VI or the niSwitch_InitWithTopology URL: http://digital.ni.com/public.nsf/allkb/5CAAAEF341B52D9C862573B70057B5FD

SCXI Chassis Need to Have Different Addresses Even when Controlled by Different Controllers nbspI have two executables using NI-SWITCH that initialize different switch modules in two different SCXI chassis. They are controlled with different MIO boards. I get an error when trying to run the 2 executables together, stating that there is already an open driver session to the switch. URL: http://digital.ni.com/public.nsf/allkb/627B7C5C5101C9A586256FD60083B106

Why Do I Get an Error When I Try to Add My PXI-2532 in 8x64 1-wire Topology in NI Switch Executive? A bug in NI-DAQ 7.2 prevents the PXI-2532 in the 8x64 1-wire toplogy to be added as a virtual device. The bug affect 'r4' of the topology the error wil most likely to be: Channel name specified is not valid for the switch device - Channel Name: r4. URL: http://digital.ni.com/public.nsf/allkb/C8E0574061FC014B86256EED0052E5D2

Why do I Get Intermittent Errors When I Use a [c]FP-RLY Module? I am using a [c]FieldPoint Relay module to switch an inductive load and I get intermittent errors. Most of the time I am able to read and write the channels on the relay module without a problem. Occasionally I will get one of the following errors: URL: http://digital.ni.com/public.nsf/allkb/5CE4338D658A38DA86256BD8005CB757

Why do I Get Intermittent Errors When I Use a [c]FP-RLY Module? I am using a [Compact]FieldPoint Relay module to switch an inductive load and I get intermittent errors. Most of the time I am able to read and write the channels on the relay module without a problem. Occasionally I will get one of the following errors:33027: Addressed module does not URL: http://digital.ni.com/public.nsf/allkb/D27C8AFBDCA090488625715C0003A281