Connecting Analog Output Signals; Digital I/O; Connecting Digital I/O Signals - National Instruments NI 784xR User Manual

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Connecting Analog Output Signals

The AO signals are AO <0..n> and AOGND.

AO <0..n> are the AO channels. AOGND is the ground reference signal for

the AO channels.

Figure 2-10 shows how to make AO connections to the

NI 783xR/784xR/785xR.

Load

VOUT 0

Figure 2-10. Analog Output Connections

You can configure the NI 78xxR DIO lines individually for either input or

output. When the system powers on, the DIO lines are at high impedance.

To set another power-on state, you can configure the NI 78xxR to load a VI

when the system powers on. The VI can then set the DIO lines to any

power-on state.

The DIO signals on the NI 78xxR RDIO connectors are DGND and

DIO<0..39>. The DIO signals on the NI 783xR/784xR/785xR RMIO

connector are DGND and DIO<0..15>. The DIO<0..n> signals make up the

DIO port and DGND is the ground reference signal for the DIO port. The

NI 781xR has four RDIO connectors for a total of 160 DIO lines. The

Chapter 2

AO0

–

AOGND0

NI 783xR/784xR/785xR

2-17

Hardware Overview of the NI 78xxR

Channel 0

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