Siemens FM 450-1 - Encoder Signals and Their Evaluation; Chapter Overview; Encoders Which Can be Connected

Encoder signals and their evaluation
9
9.1 Chapter overview
Chapter overview
This chapter describes:
• which encoders you can connect to the counter module
• the time pro󹪝le 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 󹪝lter 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 di󹪜er 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 speci󹪝c amplitude.
Connecting di󹪜erent encoders
The counter module supports di󹪜erent encoders which return pulses for the count signals. The
table shows these encoders and the corresponding signals.
Table 9-1 Encoders which can be connected
Encoders Signal
5-V incremental encoder Di󹪜erential signals A and /A, B and /B, N and /N
24-V incremental encoder A*, B* and N*
24-V pulse encoder 24-V with directional signal
24-V proximity switch 24 V without directional signal
Counter module FM 450-1
Equipment Manual, 03/2022, A5E03648739-AC 79