Meilhaus Electronic ME-5000 series, Руководство пользователя

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Rev. 1.1E Manual ME-5001
Programming Page 24 Meilhaus Electronic
4.1.2 Frequency Input/Output
Before you can use the "Frequency measurement" or "Pulse generator"
modes, it is necessary, prior calling your application, to run the ME-iDC
configuration tool in order to specify the configuration for the corres-
ponding subdevice (see also table 2 on page 22).
The programming of the frequency measurement and the pulse generator
is always done in the
single operating mode. The subtype of the subde-
vices is always ME_SUBTYPE_SINGLE.
Diagram 7: Frequency input/output in single operation mode
Please read the ME-iDS manual and the ME-iDS help file (*.chm)
carefully prior to programming
. You can open both of these documents
through the "ME-iDS Control Center or through the Windows Start
menu.
Two variables are introduced to describe the rectangular signal, and apply
equally to input and output. One value indicates the period T, while the
other value provides the duration of the pulse of the first phase of the
period t
1P
. For frequency measurement, the measurement starts with the
first rising edge, and finishes with the next rising edge. The falling edge
that lies between them defines the end of the first phase. In pulse genera-
tor mode, output normally starts with a high level, changing to the low
level when the first phase has elapsed.
ME-5001
4
Subdevice 0
“Frequency In“
FI_0..7
Subdevice 1
“Frequency Out“
FO_0..7