Parameterization and configuration
Printed in the Federal Republic of Germany
TR-Electronic GmbH 2008, All Rights Reserved
06/19/2012
TR - ECE - BA - DGB - 0068 - 01
Page 93 of 109
7.8.7.2 Total measuring range
Defines the
total number of steps
of the measuring system before the measuring
system restarts at zero.
lower limit
16 steps
upper limit PNO CLASS 2 16 bit
65536 steps
upper limit PNO CLASS 2 32 bit
16777216 steps (24 bit)
default
16777216
The actual upper limit for the measurement length to be entered in steps is dependent
on the measuring system version and can be calculated with the formula below. As the
value "0" is already counted as a step, the end value = measurement length in
steps - 1.
Total measuring range = Steps per revolution * Number of revolutions
To calculate, the parameters
steps/rev.
and
the number of revolutions
can be read
on the measuring system nameplate.
When entering parameter data, ensure that the parameters
"Total measuring range"
and
"Steps per revolution"
are selected such that the quotient of the two parameters
is an exponent of 2.
If this is not the case, the measuring system corrects the measurement length in steps
to the next smallest integer, so that results the next smallest exponent of 2 of the
number of revolutions. The Steps per revolution remains constant.
The newly calculated total measuring range can be read from the extended diagnosis
information for CLASS 2 and is always shorter than the specified measurement
length. It may therefore occur that the total number of steps actually required is not
achieved and the measuring system generates a zero transition before it reaches the
maximum mechanical distance.
