Basics
3.6 External encoder technology object
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
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3.6
External encoder technology object
The external encoder technology object detects a position, and makes it available to the
controller.
The relationship between the encoder values and a defined position is created by assigning
parameters to the mechanical properties and the encoder settings, as well as to a homing
process.
The following figure shows the basic principle of operation of the external encoder
technology object:
Specification of the position occurs according to the selected system of units:
●
Linear system of units
The position is specified as a linear measure, e.g. millimeters (mm).
●
Rotary system of units
The position is specified as an angular measure, e.g. degrees (°).
Note
The positioning axis/synchronous axis technology objects and external encoder are
independent of each other, and cannot be coupled to each other. The actual position of an
external encoder cannot be used for position control of a positioning axis or synchronous
axis.
