Acquisition of inductive displacement transducers with PCI-Express
length measurement board APCIe-3701
The PCI Express length measurement board APCIe-3701
has 8 or 16 inputs for the acquisition of inductive displacement
transducers (half-bridge or LVDT) with 16-bit resolution, as well
as 16 optically isolated digital inputs and outputs, 24 V. For
the acquisition of transducer signals, the following acquisition
modes are available: Simple mode, Sequence mode (with DMA function)
and Auto-refresh mode. The measurement frequency can be programmed
through software. The software tool ConfigTools includes a transducer
database to select the connected transducers. Furthermore, it allows
you to carry out firmware updates and calibrate connected transducers.
With the 12-bit timer, a time base independent from the PC clock
can be defined, to synchronise operations, for example.
has been developed for use in the industrial environment and is
equipped with numerous protective circuits, such as optical
isolation (1000 V), input filters, as well as protection against
overtemperature, overvoltage, fast transients (burst), electrostatic
discharge and high-frequency EMI.
The digital inputs acquire external
signal states and correspond to the 24 V industry standard (IEC1131-2):
Logic “1“ corresponds
to an input voltage = 19 V, logic “0“ corresponds to
an input voltage = 14 V. Each input has a diagnostic function to
detect a short-circuit or line break of the transducer. For the
digital outputs, positive logic is used: Logic “1“=
set output through software, logic “0“= reset output.
All outputs have a common ground line.
Standard drivers for Linux,
signed 64-bit drivers for Windows 8 / 7 / XP as well as samples
for the compilers und software packages
Microsoft VC++, Borland C++, Visual Basic, Delphi, LabVIEW and
LabWindows/CVI are included in delivery. Real-time drivers for
Linux and Windows as well as compilers and samples for further
operating systems are available on request.