Scaling Parameter; Object 2002H: Tr-Total Measuring Range In Steps - TR-Electronic CEV-58 Benutzerhandbuch

Manufacturer and Profile Specific Objects (CiA DS-406)

8.2.2 Scaling parameter

8.2.2.1 Object 2002h: TR-Total measuring range in steps

Defines the total number of steps of the measuring system before the measuring
system restarts at zero.
Index
Name
Data type
Category
Access
PDO mapping
Lower limit
Upper limit
Default
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.
To calculate, the parameters steps/rev. and the number of revolutions can be read
on the measuring system nameplate.
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Page 96 of 116
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
0 1
of the group 2 , 2 , 2
or
 Ensure that every positioning in the de-energized state for a multi-turn
measuring system is within 512 revolutions.
0x2002
TR_TotalMeasuringRange
UNSIGNED32
Optional
rw
No
16 steps
2147483647 = (0x7FFF FFFF)
16777216
Total measuring range in steps
Byte 0 Byte 1
7 0 15
2 to 2 2
Total measuring range = Steps per revolution * Number of revolutions
TR - ECE - BA - DGB - 0112 - 01
2 12
...2 (1, 2, 4...4096).
Byte 2
8 23
to 2 2 to 2
Byte 3
16 31 24
2 to 2
Printed in the Federal Republic of Germany
02/04/2014