How to adjust the offset value of an absolute encoder
(Original Document)
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At a Glance
This parametering is an option when the input interface of the TSX CTY 2C module is configured for a serial output absolute encoder.
This parameter is used to perform a shift from zero by adding the offset value to the current value supplied by the encoder.
Parameters are set in the Offset value zone in the adjustment screen.
For encoders with parallel outputs
For encoder(s) with multiplexed parallel outputs, the offsets must be managed by the application.
Procedure
The table below summarizes the procedure for adjusting the offset value.
Step
Action
1
Open the module to be set.
2
In the channel field, select or enable the counter selection (i.e. the channel) involved.
3
In the general parameters field, select or enable the counting function.
4
Access the adjustment screen by clicking on the Adjustment tab.
5
In the Offset value zone enter the value desired.
This value must be between: 0 and the rollover value (this mode is implicit for an absolute encoder interface).
6
Offset value adjustment is complete.
  • If there are no more parameters to be defined, enable the new adjustment with the Edit → Enable command.
Note: in offline mode, the value entered is then copied again in the Initial value field. In on-line mode, the value entered then becomes the current value.