发布日期：2005/5/1
包含的版本：1.1.1
受支持的操作系统
Windows
Windows 2000
Windows XP
语言：德语, 日语, 法语, 英文
应用程序位数：32位
校验和：
文件大小: 212419069 字节 (202.58 MB)
修改日期: 2005-07-08 06:05
MD5: 9ad335f7061e7d6de1a6a9e7546ca92a
SHA1: abbfd38cd788ebe93b427bcacf1d8c89c2725766
SHA256: 3d74ec378b966748687c90cbdd45cb01ee5fb2949049a24990552a83c527a53e
CRC32: 87316c6e
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NI SignalExpress 1.1.1 Readme
May 2005
This file contains important information about SignalExpress 1.1.1, including known issues, installation, and compatibility issues. Refer to the Getting Started with SignalExpress for information about getting started with SignalExpress. You can access this PDF by selecting Help»Getting Started with SignalExpress in the Express Workbench environment.
Installation Instructions
Note National Instruments recommends that you install SignalExpress 1.1.1 first if you install any of the following toolkits: Sound and Vibration 4.0 or later, System Identification 2.1 or later, or Control Design 2.1 or later. The Sound and Vibration, System Identification, and Control Design toolkits contain shared components that may be affected if you install SignalExpress 1.1.1 at a later time.
Place the SignalExpress CD in your CD-ROM drive and follow the prompts through the rest of the installation.
Complete the following steps to use SignalExpress with hardware
Install the appropriate driver for that hardware. For Multifunction DAQ, use NI-DAQmx. For High-Speed Digitizers, use NI-SCOPE. For Signal Generators, use NI-FGEN. For Digital Multimeters, use NI-DMM. All drivers are available on the Driver CD.
Shut down the computer.
Install the hardware.
Restart the computer to complete the software installation.
Compatibility Issues
SignalExpress is compatible with the following products:
NI-DAQmx 7.3 or later
NI-SCOPE 2.7 or later
NI-FGEN 2.2 or later
NI-HSDIO 1.3.1 or later
NI-HWS 1.3.1 or later
NI-DMM 2.4.1 or later
IVI Compliance Package 2.0 or later
IVI Driver Toolset 2.0 or later
The NI-HSDIO, NI-HWS, NI-DMM, Convert Analog to Digital, Convert Digital to Analog, Digital Compare, and the IVI steps are new for SignalExpress 1.1 and are not available in SignalExpress 1.0.
To convert an Express Workbench project to a LabVIEW VI, you must have the LabVIEW 7.1 Full Development System or greater installed.
The Wait on previous step control in the NI-DAQmx Acquire and NI-SCOPE Acquire steps is replaced by the Start this step after control. Use this control to specify what other step to wait for before starting the step.
SignalExpress will install or update the following applications:
MAX 3.1.1
LabVIEW Run-Time Engine 7.1
LabVIEW Run-Time Engine 7.0
Known Issues
SignalExpress 1.1.1 contains five new IVI Instrument Steps to simplify connectivity to more than 300 different standalone instruments. The IVI Instrument Steps support IVI-C Drivers.
You can configure only one IVI session name for a driver. If you configure more than one IVI session name for a driver, you invalidate existing IVI session names for that driver.
If you delete an IVI logical name in MAX without deleting its corresponding hardware asset, SignalExpress steps using that name fail and you cannot recreate that same name within SignalExpress. You must create a new IVI session name in SignalExpress or delete the corresponding hardware asset in MAX.
LabVIEW prompts you with a warning dialog box during project conversion if LabVIEW loads vi.lib subVIs from the National Instruments\LabVIEW 7.1 directory rather than from the directory where you saved your project. Click the OK button to resume conversion.
The Load from ASCII, Load from LVM, and Load from SPICE steps will convert only 20 imported signals into the LabVIEW VI during project conversion. If you want to import more than 20 signals and then convert the project to a LabVIEW VI, use two or more Load from ASCII, Load from LVM, or Load from SPICE steps.
You cannot convert an Express Workbench project to a LabVIEW block diagram if that project uses software triggers.
Text in any step configuration view does not display correctly if you set your monitor resolution to 1400 x 1050 or higher or if you use large fonts.
Due to driver and operating system issues, absolute time stamps have an inaccuracy of 100 ms to 200 ms. National Instruments recommends that you use relative time stamps.
You cannot use Start Trigger from the NI-FGEN Standard Function step or the NI-FGEN Arbitrary Waveform step in continuous generation mode if the NI-FGEN steps are in a sweep operation. The reason is that during a sweep operation, the NI-FGEN devices only send a start trigger at the first sweep iteration.
If you configure a device to start on a digital trigger and the trigger source is the start trigger of an analog output NI-DAQmx supported device, the device might receive the start trigger before the generation starts. This can occur the first time you run the project or on the first iteration of a continuous execution. To work around this issue, configure the analog output device to be a slave by configuring the device with a digital trigger, and selecting a trigger signal from another device as the trigger source.
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