National Instruments NI 2590/2591

AppendixC CommonQuestions

NI2590/2591 User Man ual C-2 ni.com

Finally,verify that your code is correct. For reference, see the examples

describedin the NI-SWITCH Software User Manual. The NI-Switchdriver

also ships with severalexamples in source code. Compare your algorithm

to the ones in the examples.

DoI need to program the switchm odulemyself?

The NI 2590/2591 comes with the NI-Switch driver software, which

exportsthe full funct ionality of the module. NI-Switch handles the

complexissues of direct memory access, interrupts, and operating

systeminterfacing.

Contents

Main Page Important Information Warranty Copyright Trademarks WARNINGREGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class FCC/DOC Warnings Class A European Union - Compliance to EEC Directives Conventions Contents Page Routing Signals with Your NI 2590/2591 About the NI 2590/2591 Triggers RF Switching Precautions Contact Protection Connecting Signals NI 2590 Front Connector NI 2591 Front Connector Software Choices NI-SWITCH Driver Software National Instruments Application Software Page NI 2590/2591 Operation Safety Instructions Functional Overview Figure2-1. NI2590 Module Block Diagram Figure2-2. NI2591 Module Block Diagram Relay Operation NI 2590 Operation NI 2591 Operation Switch Control Circuitry Random Scanning PXI Interface PXI Triggers External TriggerInput Scanner Advanced Modes Initiating Scanning Multiboard Triggering Page A Specifications NI 2590 Input Characteristics RF Performance Characteristics Dynamic Characteristics PXI Bus Interface Page NI 2591 Input Characteristics RF Performance Characteristics Dynamic Characteristics Power Requirement Physical Environment Page B Servicing Your Module Replacing the NI 2590 Relay Module Replacing the NI 2591 Relay Module Page C Common Questions Page D Technical Support Resources Web Support NI Developer Zone Customer Education System Integration Worldwide Support Glossary Numbers and Symbols A B C D E Page R S T V W Index B C D E O P Q R S T W