Reversion of rotation

With an encoder, the counting direction is determined by the phase position of the signals on tracks A and B.

• Forward (cw): Signal on track A leads track B by 90°
• Backward (ccw): Signal on track A lags track B by 90°

To adapt the counting direction to the application, this logic can be inverted by setting the bit in index 0x8000:0E "Reversion of rotation".

Fig.164: Reversion of rotation (Index 0x8000:0E "Reversion of rotation") for an encoder

The current status of the levels on track A and track B is displayed via the process data 0x6000:09 "Status of input A" or 0x6000:0A "Status of input B".