Baumer AMG 11 D13 Manuale - Pagina 10

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8

Encoder position object

The encoder position object is a manufacturer-specific object. The class code is 2Fh.
Instance attributes
Due to their differing functionality, the instance attributes are subdivided into two groups.
The first group, attribute I to 12, contains the parameters for position calculation.
The second group, attribute 80 to 95, contains the diagnostic functions.
Changed parameters are only saved in the non-volatile memory by the "save" service.
Table: Parameters for position calculation
Attribute ID
Access
1
read
2
read
3
read/
write
4
read
5
read
6
read
7
read/
write
8
read/
write
9
read
10
read/
write
11
read/
write
12
read
Steps per turn
The parameter "Steps per turn" defines the number of steps per revolution. If this parameter is set, the overall
resolution is changed according to the following formula:
Total resolution = Steps per turn x turns
Sense of rotation
The sense of rotation defines whether the position values of the encoder increase when rotation takes place
clockwise (CW) or counter clockwise (CCW) when looking at the shaft.
Total resolution in steps
The parameter "Total resolution in steps" defines the total number of steps over the entire measurement
range.
Steps per turn = 3600; Turns = 256;  Total resolution = 3600 x 256 = 921600
Example:
If the number of turns is programmed as a value not equal to 2
be done anew as soon as the encoder's zero point has been exceeded in powerless
BUDE_Manual_DeviceNet_EN.doc
22.10.2010/bja
Name
Data type
No. of attributes
USINT
Attributes
Array of
USINT
Sense of rotation
BOOL
Internal diagnostic
BOOL
function
Scaling function
BOOL
Position format
USINT
Steps per turn
UDINT
Total resolution
UDINT
Reserved
UDINT
Preset value
UDINT
COS delta
DINT
Position value
DINT
10/15
Description
Number of supported attributes
List of supported attributes
Setting the sense of rotation
Not used
Activation of the scaling
function
Format of the position value
Number of required steps per
turn
Number of required steps over
the measurement range
Reserved
The position value is set to the
preset value
Minimal position change value
in the COS mode
Current position value
n
(1, 2, 4,...65536), parameterizing will have to
state.
Values
0 = CW
1 = CCW
0 = OFF
1 = ON
0 = Steps
See op.
parameters
See
operating
parameters
= 0
See op.
parameters
1 to overall
resolution
1 to overall
resolution
Baumer Hübner GmbH
Berlin, Germany