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What you should know
F-FEM-CNT — User’s Guide
1 What you should know
1.1 Safety Instructions
This documentation contains important warnings and safety instructionns to
be observed by the user. Smooth operation only is ensured, if the necessary
prerequisites and safety measures are kept.
1.2 Warranty Seal
For safety reasons the product is provided with a special seal which may only be
broken by AVL personnel. Any unauthorized damage to the seal is considered
an unauthorized change to the product which will cease AVL's warranty obliga-
tion.
1.3 Intended Application
The product is only intended for the area of application described in the docu-
mentation. We do not give any warranty and do not accept any liability for appli-
cations outside the described utilization or in the event of noncompliance with
the necessary conditions and safety instructions. The supported protection of the
product could be affected.
1.4 Product specific information
The F-FEM-CNT (Fast Front End Module Digital Counter) is a data sampling
device which is used for measuring speeds, frequencies, periods and events. It
is part of a family of Front End Modules that operate together in a network. Data
communication takes place via an IEEE1394-compatible bus. Thus, within a
PUMA Open system real time data communication is ensured.
The signals can be transferred directly to/from the PUMA test bed computer or
via another type of F-FEM module (e.g. F-FEM-CON).
Using an F-FEM-CNT, analog signals (e.g. speeds, frequencies, etc.) can be
acquired and transferred to the PUMA Open system.
The F-FEM-CNT is equipped with 4 interfaces (SUB D) and has 6 independent
counter channels. Different types of sensors for the acquisition of different
signals can be connected to these interfaces.
A number of F-FEMs and Basis-FEMs can be used with the PUMA Open
system. The total sampling rate for all connected F-FEMs depends on the
applied PUMA Open version.
For details, please refer to Performance Data on page 13.
Information
You will find abbreviations and descriptions in chapter Glossary and Abbrevia-
tions on page 55.
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