HEIDENHAIN PROFIBUS-DP (DPV2) - Manual (Page 67)

Functionality in the PROFIBUS DPV2 device
67
8.1 Code sequence
The code sequence defines whether the absolute position value
should increase during clockwise or counter clockwise rotation of
the encoder shaft seen from flange side. The code sequence is by
default set to increase the absolute position value when the shaft
is turned clockwise (0).
Attribute Meaning Value
CW Increasing position values with clockwise
rotation (seen from shaft side)
0
CCW Increasing position values with counter
clockwise rotation (seen from shaft side)
1
Table 31 Code sequence attributes
Note: The position value will be affected when the code
sequence is changed during operation. It might be
necessary to perform a preset after the code sequence
has been changed.
Note Code sequence for the linear scale is not supported by
the gateway.
8.2 Class 4 functionality
This parameter enables or disables the measuring task functions
Scaling, Preset and Code sequence. If the function is enabled,
scaling and Code sequence control affects the position value in
G1_XIST1, G1_XIST2 and G1_XIST3. A preset will in this case
always affect G1_XIST2 and G1_XIST3 but if the parameter
G1_XIST1 Preset control is disabled the preset will not affect the
position value in G1_XIST1.
Attribute Meaning Value
Enable Scaling/Preset/ code sequence control
enabled
1
Disable Scaling/Preset/ code sequence control
disabled
0
Table 32 Class 4 functionality attributes