Programming instructions

Chapter 11 AMUX-64T External Multiplexer Accessory
© National Instruments Corporation 11-5 DAQ Hardware Overview Guide
Note The MIO-64 devices have onboard analog input channels that are numbered as
follows:
0 through 63, in single-ended mode
0 through 7, 16 through 23, 32 through 39, and 48 through 55, in differential mode
If you plan to use the AMUX-64T with any of these devices, the AMUX-64T channel
numbers overlap with the onboard channels. For example, if you have one AMUX-64T
device connected to the AT-MIO-64E-3, AMUX-64T channels 16 through 63 conflict with
onboard single-ended channels (with the same numbers) on the analog input connector.
Because of this overlapping of channel numbers, you must call the NI-DAQ function
MIO_Config
or MIO_Configure.vi whenever you want to use an AMUX-64T channel.
For further details on the NI-DAQ function
MIO_Config, refer to the NI-DAQ Function
Reference Online Help.
If you are using your MIO or AI device to power the AMUX-64T, not only
must the fuses on the AMUX-64T be intact, but the fuse on the MIO or AI
device must also work. All fuses are in working order when you receive
them, but inadvertent contact between +5 V and ground can short the fuse.