Siemens SIMATIC S5-100U System Manual page 470

Function Modules
Because of its performance capability and the complexity of its description, the IP 266 has its own
manual that you can order separately. The order number is: 6ES5 998-5SC21. The positioning
control module IP 266 expands the field of application for "positioning operations" of the S5-100U.
As an "intelligent I/O module", it allows you to use open-loop as well as closed-loop control
positioning.
The positioning operations are processed independently of the execution times of the user programs
in the programmable controller. Thus the CPU is not burdened with positioning jobs constantly
being processed. You can plug the IP 266 into slots 0 to 7 on the S5-100U. The IP 266 is assigned
addresses in the analog address area of the programmable controller.
Operation Principle of the IP 266
The IP 266 enables you to control the positioning operation of your drive exactly.
The module delivers a voltage setpoint in the range of±10 V via an analog output for the control of
a power section for servo motors.
The IP 266 needs exact data about your drive system in order to calculate speed, acceleration, or
traverse residual distances. This data can be stored in an EEPROM that is permanently installed in
the programmable controller. By using its own start-up routine, this data can be accessed
immediately after you switch on the programmable controller and can be processed directly.
The IP 266 allows you to select between a linear axis and a circular axis. You can also select the
unit of measurement for processing the data: either [mm], [in.] or [deg].
Linear Axis
Possible parameter units: [mm], [in.]
Figure 15-27. Units of Measurement that IP 266 Can Process for Circular Axis and Linear
Axis
15-56
Table
Continuous
belt
Possible parameter units: [deg], [mm], [in.]
Circular Axis
Beginning/end of traversing range
Rotary table
EWA 4NEB 812 6120-02b
S5-100U