Messtechnik Sachs Irinos IR, Руководство пользователя

Страница: 131 / 214

131
Irinos IR Users Manual © 2015 - 2016 Messtechnik Sachs GmbH, Germany
Measurement / Control via MscDll
the function MSC_ReadStatic together with the opcode opcRS
(0x40) must be called (see following figure). This procedure must
be repeated every time new measurement values have been
received.
Steps for "copying static measurement values into the buffer of the
application"
Update-Rate
The update rate for measurement values depends on two factors:
o
The update-rate of the MscDll.
o
The internal update-rate of the Irinos-System.
The update-rate of the MscDll is determined by the send-period,
which has been defined during connection establishment with
MSC_Start. If the send-period is 30ms, the update-rate is about 30
updates/s; 20ms send-period result in 50 updates/s. The highest
achievable update-rate with a send-period of 1ms is a little bit more
than 100 updates/s.
The internal update-rate of the Irinos-System depends on whether a
dynamic measurement is active or not.
If a dynamic measurement is active, the update-rate is always
about 30 updates/s.
If dynamic measurement is inactive, the update-rate is about 100
updates/s using up to 8 Irinos-Boxes. If 32 Irinos-Boxes are used,
the internal update-rate is about 30 updates/s.
The following table shows typical update rates for various
combinations of send-period and "number of Irinos-Boxes", if no
dynamic measurement is active: