Jump to content

Recommended Posts


     I am using SM43JR20 but I couldn't find any information about the type of encoder signals that is safe to be connected to the PLC.

If possible can you suggest some shaft encoders that can be connected to this PLC model?


Thanks in advance


Link to comment
Share on other sites

  • MVP 2023


The PLC IO module needs 24V for the "1" state.  You'll need a high speed converter to step the voltage up.

Try using Dr. Google to find something, or I've been known to roll my own on a small piece of perf board-


The output will be inverted, but that doesn't matter for counting pulses.

Joe T.


  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...