TR-Electronic CDV582 - Submodule Position; Configurable Submodule-Related Parameters; Rotational Direction; Structure of the Cyclic Process Data

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11/21/2019 TR - ECE - BA - GB - 0139 - 02 Page 91 of 154
6.4.2 Submodule Position
6.4.2.1 Structure of the cyclic process data
The current scaled absolute actual position of the measuring system is output unsigned as a right-
justified 32-bit binary value via the submodule Position.
Structure of input data, IO device -> master
Unsigned32
Byte
X+0
X+1
X+2
X+3
Bit
31-24
23-16
15-8
7-0
Data
2
31
– 2
24
2
23
– 2
16
2
15
– 2
8
2
7
– 2
0
6.4.2.2 Configurable submodule-related parameters
The Parameters can be set according to the following table via an input box in the configuration tool
and are automatically sent by the control to the measuring system during start-up via the record data
object with index 0x0001.
Byte
Parameter
Data type
Description
Page
0
Rotational
direction
Bit
Bit 0
0: backward
1: forward
91
1-4
Measuring
range
Unsigned32
No. of steps/revolution * No. of revolutions
Default value: 536870912
Value range: 2-536870912
92
5-8
Revolutions
numerator
Unsigned32
Number of steps per revolution numerator value
Default value: 65536
Value range: 1-256000
92
9-12
Revolutions
denominator
Unsigned32
Number of steps per revolution denominator
value
Default value: 1
Value range: 1-16384
92
6.4.2.2.1 Rotational direction
Danger of death, severe personal injury and/or material damage due to a
jump in the absolute value when the code sequence is changed!
 The internal calculation algorithm results in different absolute positions
for the counting direction settings backward and forward. Therefore,
after changing the rotational direction, verify the correct function by a
protected test run first. Under certain circumstances, the output position
must be adjusted via the preset function.
Selection
Value
Description
Default
backward
0
Measuring system – position descending clockwise
(looking at shaft, flange connection)
forward
1
Measuring system – position ascending clockwise
(looking at shaft, flange connection)
X