Encoder Signals And Their Evaluation; Chapter Overview; Encoders Which Can Be Connected - Siemens FM 450-1 Equipment Manual

Encoder signals and their evaluation

9.1

Chapter overview

Chapter overview
This chapter describes:
• which encoders you can connect to the counter module
• the time profile of the encoder signals
• the multiple evaluation of encoder signals by the counter module
• how the module monitors the various encoder signals
• which signals can be assigned input filter parameters.
9.2

Encoders which can be connected

Introduction
The counter module can process rectangular count signals which were generated by
incremental encoders or pulse generators.
Incremental encoders scan a barcode to generate rectangular electrical pulses. They differ in
terms of pulse amplitude and number of signals.
Pulse generators such as light barriers or proximity switches (BEROs) return only a rectangular
signal at a specific amplitude.
Connecting different encoders
The counter module supports different encoders which return pulses for the count signals. The
table shows these encoders and the corresponding signals.
Table 9-1
Encoders
5-V incremental encoder
24-V incremental encoder
24-V pulse encoder
24-V proximity switch
Counter module FM 450-1
Equipment Manual, 03/2022, A5E03648739-AC
Encoders which can be connected
Signal
Differential signals A and /A, B and /B, N and /N
A*, B* and N*
24-V with directional signal
24 V without directional signal
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