SIEMENS PU CJ1W-SCU21-V1 1214C, CJ1W-SCU21-V1 used to measure the speed of the net belt, about 1000 lines. There are many people on the Internet seeing a number of people using the OMRON encoder to connect SIEMENS's S7-1200, but look at the handbook as if the output of the OMRON encoder is not compatible with S7-1200.
There is a similar use, recommend the model of the encoder, thank you!