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XAC80 Profibus-DP
®
7.4.1 Byte 10 - Operating parameters
Bit Function bit = 0 bit = 1
0
Code sequence
Count up
information
with
clockwise
rotation
Count up
information
with
counter-
clockwise
rotation
1
Class 2 functionality
disabled
enabled
2 Reserved
3
Scaling function control
disabled
enabled
4 ... 6 Reserved
7 Exchange type position
po
velocity
Code sequence
This is intended to set whether the position value output by the transducer
increases (count up information) when the encoder shaft rotates clockwise (CW)
or counter-clockwise (CCW). When
Code sequence
= 0, the position value
increases when the encoder shaft rotates clockwise; on the contrary, when
Code sequence
= 1, the position value increases when the encoder shaft
rotates counter-clockwise. CW and CCW rotations are viewed from the shaft
end.
Default = 0 (min. = 0, max. = 1)
WARNING
Every time you change the
Code sequence
, then you are required to set a new
preset value (see the
Preset value
parameter).
Class 2 functionality
This is only available when the encoder Class 2 or the encoder Class 2(+VEL) are
installed.
Two device classes are defined in the encoder profile, one mandatory class (Class
1) and one class with optional functions (Class 2). This encoder implements
functions of both Class 1 and Class 2 for encoders. For any information on the
available encoder classes see the “7.2 Classes of the Device profile” section on
page 39.
0 = Disabled
= Encoder Class 1 is set.
1 = Enabled = Encoder Class 2 (or Class 2(+VEL)) is set.
Default = 1 (min. = 0, max. = 1)
MAN XAC80 PB E 1.0.odt 7 - Profibus® interface 43 of 60