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User Manual
E727T0005, valid for E-727
BRO, 2019-06-28
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany
Page 96 / 240
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email
3.
Scale the output value, i.e. associate the axis position values with suitable output levels
(= scaled position values). To do this, set the
Position Report Scaling
parameter, ID
0x07001005, and the
Position Report Offset
parameter, ID 0x07001006 to suitable
values for the axis.
ScaledPositionValue = PositionReportScaling * (PositionReport PositionValue)
Example:
The position range of the axis is given by the TMN? answer (is defined by the
Range
Limit min
parameter, ID = 0x07000000) and by the TMX? answer (is defined by the
Range Limit max
parameter, ID = 0x07000001), it is -20 µm to +120 µm in the example.
Furthermore, the output range to be used is -10 V to +10 V. The resulting parameter
values for the axis position scaling are as follows:
Position Report Scaling
= 0.143
Position Report Offset
= -50
i.e. you have to send:
SPA 3 0x07001005 0.143
SPA 3 0x07001006 -50
In PIMikroMove, these parameters for the axis are available in the
Servo 3
parameter
group in the
Device Parameter Configuration
window.
Use as Control Signal
INFORMATION
The control value of an output signal channel results from the output matrix, see "Output
Generation" (p. 34) for more information.
Example: An external amplifier is to be controlled via the analog output on pin 8 of the
Analog I/O
socket (= output signal channel 4). To command the external amplifier, the logical axis 3 of the E-
727 is to be used. Via the output matrix, the control value of axis 3 is to be transferred into the
control voltage for output signal channel 4.