Messtechnik Sachs Irinos IR, User Manual

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Irinos IR Users Manual © 2015 - 2016 Messtechnik Sachs GmbH, Germany
Measurement / Control via MscDll
starting measurement
// Wait until the dynamic measurement is finished
do {
result = MSC_GetPosition(pDevice, opcRDM1, &nSamples);
if (result != MSC_STATUS_SUCCESS) return -7;
Sleep(50); // Take a break for 50ms
} while ((nSamples < 20000) && (staticValueT4 < 384000));
// Inactivate trigger
ansiString = “ #1# ”;
WriteCommandStr(opcIT, ansiString);
// Wait until all measurement values are transferred to the PC.
// Note that if the loop above has been stoped by the second
condition
// (staticValueT4 < 384000), not all values may have been
transferred to
// the PC yet.
It is assumed that the static measurement is running in parallel. The
variable
staticValueT4
contains the measurement value T4, which is
cyclically updated via static measurement.
8.9.2
Example 2: Position-triggered dynamic measurement
Task
A roundness measurement shall be performed for a working piece.
The working piece is placed on a rotary disk, which is driven by an
uncontrolled motor with a speed of 5 s/rotation. During this rotation
720 measurement values in 0,5°-steps shall be sampled.
An incremental encoder providing 3600 increments is placed in
between the motor and the disk. The working piece is measured
using two inductive probes.
The incremental encoder is connected to measurement input T12,
the inductive probes are connected to T4 and T5.