Hello 
Thank you for your help, but I have questions. 
How to connect this encoder to this module? 
The input specification should be A, B phase shifted?

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Split from S7-1500, TM Posinput 2 - example software .

Hello

The type of the encoder is :

- optical incremental encoder

- resolution 23 bits

- power supply voltage is 5VDC

- output signal serial communications

- output interface is RS485 compilant

Hello Rafal

Pls give more information about your encoder, the best is to provide the vendor and the part number. The data you've provided actually contains no information on the encoder output protocol.

TM PosInput 2 can work with incremental encoders and SSI encoders, your encoder seems to be neither of those.

Hello 
The situation looks as follows. Two motors are 
used for the tape drive. The motors are equipped 
with incremental encoders connected to the 
Omron R88M-1 SN servo drive. In the connection 
diagram of the servo drive I found the 
following scheme and I am wondering if I 
can connect it to this module

!  The encoder that connects to CN2 should only go to CN2.

Use CN1 pins 17&37 / 18&38 / 19&39 to generate an encoder-output to the PLC if you are looking to make a closed loop control. Careful: Those encoder output signals are 5V differential signals (RS485 compliant). Investigate in the manual of the servo drive if those pins can be connected in TTL configuration - some have multiple connection ways.

Up to now there has been no mention of which Siemens equipment is used. It is unclear what the aim is of the questions.

"The motors are equipped
with incremental encoders connected to the
Omron R88M-1 SN servo drive"

To be exact you have two motors R88M connected to two servo drives R88D - correct? If so, then you can only control these motors with these drives, and the encoders must be connected directly to the drives.

So, as previous post says, pls describe your aim. Why do you want to connect those encoders directly to PLC? Do you want to replace R88D drives?