Manufacturer and Profile Specific Objects (CiA DS-406)
TR-Electronic GmbH 2010, All Rights Reserved
Printed in the Federal Republic of Germany
Page 148 of 176
TR - ECE - BA - DGB - 0080 - 05
10/07/2013
10.2.2 Scaling parameter
Danger of personal injury and damage to property exists if the measuring
system is restarted after positioning in the de-energized state by shifting
of the zero point!
If the number of revolutions is not an exponent of 2 or is >4096, it can occur, if
more than 512 revolutions are made in the de-energized state, that the zero
point of the multi-turn measuring system is lost!
Ensure that the quotient of
Revolutions Numerator / Revolutions
Denominator
for a multi-turn measuring system is an exponent of 2
of the group 2
0
, 2
1
, 2
2
…2
12
(1, 2, 4…4096).
or…
Ensure that every positioning in the de-energized state for a multi-turn
measuring system is within 512 revolutions.
10.2.2.1 Object 2002h: TR-Total measuring range
Defines the
total number of steps
of the measuring system before the measuring
system restarts at zero.
Index
0x2002
Description
TR / Total Measuring Range
Data type
UNSIGNED32
Category
Optional
Access
rw
PDO mapping
No
Lower limit
16 steps
Upper limit
4294967295 = (0xFFFFFFFF) *
Default
16777216
* It can be set “0” to display the value 0x100000000 (2
32
).
Total measuring range
Byte 0
Byte 1
Byte 2
Byte 3
2
7
to 2
0
2
15
to 2
8
2
23
to 2
16
2
31
to 2
24
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.