please help me 2 types encoder 1XP8012-20/1024 AND encoder 1XP8012-10/1024

I don't know, 2 types siemen encoder 1XP8012-20/1024 and siemen encoder 1XP8012-10/1024, how is diffirent ? 

there are 2 types siemen encoder 1XP8012-20/1024 and siemen encoder 1XP8012-10/1024

Can be repleace?

thanh you very much.

Hello,

1xp8012-10 is HTL encoder

1xp8012-20 is TTL encoder.

please see links in this post.

Where this encoder is connected??

thank you very much

but I don't sure, so I can't changer

please you check again

I have attached drawings to you, plese help me

Can I buy encoder 1XP8012-10/1024 to replace for encoder 1XP8012-20/1024 ?

Hello ngoclan;

HTL and TTL electronic circuitry have different voltage levels and 0-1 transition levels, so they cannot be used as simple one-to-one replacement to one another.

Of course, this being electronic circuitry there are circuit modifications that can be added so that their output voltage levels are matched. But this requires a good understanding of electronics  and of each particular circuit.

For details on HTL/TTL circuits and adaptation circuitry between them , you could have a look at this webpage, for example.

https://www.posital.com/en/products/communication-interface/incremental/incremental-encoders.php

There are many more such posts on the web, if you want other points of view.

Hope this helps,

Daniel Chartier