Select Directionofrotation (For Grayorbinarycode) - Siemens SIMATIC S5 Equipment Manual

R 02/92
Direction of rotation right (
When the encoder rotates in a "right-hand" direction (i.e., clockwise with the shaft facing the ob-
server), incrementing actual values are provided if:
Direction of rotation left (
CCW
When the encoder rotates in a "left–hand" direction (i.e., counterclockwise with the shaft facing
the observer), incrementing actual values are provided if:
With a resolution of more then 20 bits, a change to counterclockwise rotation
is not possible, as the sign bit becomes "1" (internal evaluation in twos'
complements).
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= clockwise)
CW
Switch S3
= counterclockwise)
Switch S3
Matching Module 4 for Absolute Encoders
S3
S3
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