Chapter 2 Installation and Configuration© National Instruments Corporation 2-3 DAQCard-1200 User ManualIf you are using LabWindows/CVI, the software installation instructionsare in Part 1, Introduction to LabWindows/CVI, of the Getting Started withLabWindows/CVI manual. After you have installed LabWindows/CVI,refer to Chapter 1, Configuring LabWindows/CVI, of the LabWindows/CVIUser Manual for software configuration instructions. Then followDAQ configuration instructions in your NI-DAQ user manual.Analog Input ConfigurationAt startup, the DAQCard-1200 defaults to the following configuration:• Referenced single-ended input mode• ±5 V analog input rangeTable 2-1 lists the available analog I/O configurations for theDAQCard-1200 and shows the default settings.The analog input circuitry is software configurable.Warning Connections, including power signals to ground and vice versa, that exceed any ofthe maximum signal ratings on the DAQCard-1200 can damage your card andcomputer. National Instruments is NOT liable for any damages or injuries resultingfrom incorrect signal connections.Analog Input PolarityYou can select the analog input on the DAQCard-1200 for either a unipolarrange (0 to 10 V) or a bipolar range (–5 to +5 V). If you select a bipolarrange, the two’s complement coding is selected. In this mode, –5 V inputcorresponds to F800 hex (–2,048 decimal) and +5 V corresponds to7FF hex (2,047 decimal). If you select a unipolar mode, the straight binarycoding is selected. In this mode, 0 V input corresponds to 0 hex, and +10 Vcorresponds to FFF hex (4,095 decimal).Table 2-1. Analog I/O SettingsParameter ConfigurationAnalog InputPolarityBipolar—±5 V (default setting)Unipolar—0–10 VAnalog Input Mode Referenced single-ended (RSE) (default setting)Non-referenced single-ended (NRSE)Differential (DIFF)
