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NI 9144 EtherCAT Add-on for NI VeriStand

Publish Date: Mar 25, 2011 | 0 Ratings | 0.00 out of 5 | Print | Submit your review

Overview

The NI 9144 EtherCAT add-on for NI VeriStand enables users to use NI 9144 chassis and C series modules with NI VeriStand.

This document was written for NI VeriStand 2009. A new and improved version named the Scan Engine and EtherCAT custom device is now available.

The NI 9144 EtherCAT custom device brings the performance and flexibility of the NI 9144 EtherCAT deterministic expansion chassis to NI VeriStand.  With this custom device, users can add C series modules and/or custom LabVIEW FPGA personalities in a NI 9144 chassis to their NI VeriStand configuration.  This allows the user to quickly add the signal conditioning of C series modules in a modular fashion to their system configuration. Users can also program their NI 9144 chassis with a custom LabVIEW FPGA personality and then use that personality inside NI VeriStand. For more information on the NI 9144 EtherCAT platform, please see Introduction to EtherCAT. To see a video demonstration of this add-on, see Figure 1.


Figure 1

After installing the NI 9144 EtherCAT add-on, it can be added to the system configuration as a custom device. Any number of NI 9144 chassis can then be added, and their corresponding slots configured for scan mode operation of specific C series modules. Also, if the NI 9144 chassis is running a custom LabVIEW FPGA personality, the user variables used in that personality can be added in the User Variables section for each NI 9144. An example configuration can be seen in Figure 2.


Figure 2

Adding user variables to the system explorer is easy. When a FPGA bitfile is downloaded to the NI 9144 chassis, an XML file is generated on the host computer automatically in the same directory as the bitfile. This directory is typically named "FPGA Bitfiles". With this custom device, this XML file can be imported to automatically create NI VeriStand channels to correspond to the user variables in the bitfile.

This document was written for NI VeriStand 2009. A new and improved version named the Scan Engine and EtherCAT custom device is now available.

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