Flexible Functionality; User-Defined I/O Resources; Device-Embedded Logic And Processing - National Instruments Multifunction RIO NI R Series User Manual

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Chapter 1

Introduction

R Series Multifunction RIO User Manual

Flexible Functionality

Flexible functionality allows the NI 78xxR to match individual application

requirements and to mimic the functionality of fixed I/O devices. For

example, you can configure an R Series device in one application for

three 32-bit quadrature encoders and then reconfigure the R Series device

in another application for eight 16-bit event counters.

You also can use the R Series device with the LabVIEW Real-Time

Module in timing and triggering applications, such as control and

hardware-in-the-loop (HIL) simulations. For example, you can configure

the R Series device for a single timed loop in one application and then

reconfigure the device in another application for four independent timed

loops with separate I/O resources.

You can create your own custom measurements using the fixed I/O

resources. For example, one application might require an event counter that

increments when a rising edge appears on any of three digital input lines.

With an NI 783xR/784xR/785xR R Series device, another application

might require a digital line to be asserted after an analog input exceeds a

programmable threshold. You can implement these behaviors in the

hardware for fast, deterministic performance.

You can implement LabVIEW logic and processing in the FPGA of the

R Series device. Typical logic functions include Boolean operations,

comparisons, and basic mathematical operations. You can implement

multiple functions efficiently in the same design, operating sequentially or

in parallel. You also can implement more complex algorithms such as

control loops. You are limited only by the size of the FPGA.

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