How does absolute encoder connect PLC？！

Absolute encoder (single-turn, multi-turn) There are many kinds of output signals can be connected with the PLC, the most commonly used are the following:

Synchronous serial signal (SSI), and more than 300 Siemens PLC SSi interface connection, many of the European Department of PLC and controller also have this interface;

Profibus-DP bus communication signals, and Siemens and other PLC connections;

Canopen bus communication signal, and motion controller, engineering machinery controller and part of the PLC (Schneider, etc.) connection;

4 - 20mA signal, the analog interface of all PLC;

Modbus communication signal, a lot of PLC communication port can be connected;

RS485 communication signals need to be programmed into the PLC communication port, with a free protocol interface PLC can be connected;

Single-turn encoder parallel signal, all PLC's switch input interface, attention to polarity (NPN and PNP)

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