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Goals and Symptoms
The FRQ is a frequency counter. If you mark in the parameterscreen of Concept or another software "EM <= 20" for frequencies lower than 20 Hz you have a problem. If counting impulses are available the counter works correct. If no counting impulses the last value of the counter is displayed, but the value has to be 0 for no impulses.
Causes and Fixes
If you have values over 1 Hz the value of the counter is changing very often. Dependant on this you can make a program to recognize the changes. If no changes the value has to be 0.
If not all counters are used, you can take another counter with same input and another counting mode. If this counter is 0, your other counter has to be also 0.
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