System Overview - Siemens SIMATIC S5 Manual

IP 266
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System Overview

The IP 266 intelligent I/O module adds yet another powerful positioning unit to
the already wide range of S5-100U programmable controller modules. The IP 266
can position drives with exceptional accuracy. Once the programmable con-
troller's CPU has started a job, it is no longer loaded by the IP 266. The positioning
process now executes in parallel with your STEP 5 program.
The IP 266 counts the pulses generated by the incremental encoder. The count is
then used to determine the current position.
Limit switches are connected to the module's digital inputs.
The IP 266 is equipped with the following:
• Serial bus interface to the 100U programmable controller
• Digital inputs and outputs
• Analog output for driving the power section over the standard ±10 V inter-
face
• Status indicators for various operating states
• Interface for connecting an incremental position encoder to determine the
current position
• Programmer port for connection of a screen-based programmer
The following example illustrates a number of typical applications for positioning
modules. Particular emphasis is placed on the distinctions between the two types
of axes (linear axis and rotary axis).
EWA 4NEB 812 6057-02
System Overview
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