Siemens SIMATIC S5 Manual page 215

Sample Applications and Programming Aids
13.1.1 Simple Sample Program
Sample application for case a):
Controlling a subprocess with an 1P 265 without parameter interchange between 1P 265 and CPU.
A high-speed subprocess is to be autonomously controlled by the 1P 265. Communication between
CPU and 1P is limited to forwarding of the RUN command for the 1P.
Sample application:
Problem definition
Length profiles are manufactured on an assembly line. The profiles are transported on a conveyor
belt at a speed of 20 m/min. The profile length is measured while the conveyor belt is in motion. The
length tolerance is 0.1 mm.
Light barrier
BERO
Conveyor belt
Figure 13-2. Process:
13-2
Dynamic length measuring system for profiles
I
0.2
"Reject profiles"
Dynamic Measuring System for Profiles
EWA 4NEB 812 6130-02a