Di 24 Vdc St Digital Electronic Module (6Es7 131-4Bb00-0Aa0) - Siemens SIMATIC ET 200S Manual

Principle
The following figure illustrates the principle behind flutter monitoring.
Parameter for the number of signal transitions = 9
Parameter for monitoring window t = x
Process
signal
Detection
Diagnostics
Incoming "flutter error" module
diagnosis
= message
Figure 11-2 Principle of Flutter Monitoring
11.2 2DI 24 VDC ST digital electronic module
(6ES7 131-4BB00-0AA0)
Order number
6ES7 131-4BB00-0AA0
Features
• Digital electronic module with two inputs
• Rated input voltage 24 V DC
• Suitable for switches and proximity switches (BEROs)
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Digital Electronic Modules
3 x monitoring window t = 3x
Module diagnostics
"Flutter error" going
= reset
11-7