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The PCI-QUAD04 quadrature encoder board provides input channels compatible with industry standard encoders and an interrupt controller for powerful interrupt management options. Features include integrated digital filtering, programmable indexing and multiple-counter modes.
100% of new reviewers recommend this product
We have used the PCI-QUAD04 board in more than 100 of our end user products over the last 13yrs and have not had a single board issue or failure. MCC's quality products have provided us with precise control and measurement components for our applications, with assistance from their excellent technical support team we have been able to engineer complex applications with very few resources.
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The PCI-QUAD04 works well and is easy to install and configure. The included manual and software / driver CD has more than enough information to install and configure the product for the specific application.
I've used different quadrature cards for encoder quadrature data acquisition. This card is the best. The chips in the card provide multiple scale digital filter to filter out all the noise and make the data very reliable. The card works on different OS such as Windows, linux and Matlab, and even is supported with Matlab XPC target. Overall: It's a low cost, but very reliable quadrature card and has superior noise filter performance. I heard from other people about the bug of this card. But when I tested, there's no bug at all. The so called bug is because the people don't use it property. To make the card working well, my tips are : properly configure the filter according to maximum encoder frequency, use differential signal if possible, and connect all unused signals to power or ground to avoid noise input. The quad04 is the best product if compared to all the other similar quadrature products I used before.
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C# Library is very useful and easy to integrate. It also works with real time linux interface based on Xenomai and Orocos. There is a bug in counter reading that occasionally (and randomly) returns weird count readings. I solved this with an ad-hoc approach. Simply, when I read a unexpected count, I re-read the encoder which solves my problem. But it would be good if MC fix the problem.
Good product and easy to control. But, needs an easier driver install method to incorporate into OEM install shields. 12V output line would be great to drive encoders. Finally fix the index bug so we dont have to tie the lines.
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The basic function of 4 quadrature inputs to a PC is useful. InstalCal worked well enough. TraceDAQ is not particularly useful. Hard to adjust which channels are active, what the displayed gains are. Mostly the aqusition depth is tiny for a PC based system. Most of your demerits come because of a bug in cbCIn32(), the routine provided that reads a counter. Several hours of bug chasing later, I find that this function reads a low word and a high word sequentially, and does not check whether a count has occured between the two reads. This causes random falacious data. The problem is fixed by putting a wrapper around cbCIN32() that reads it repeatedly until it reads the same twice.
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