kdog

F1/F2 conversion help

4 posts in this topic

I'm in the process of converting a F1/F2 PLC to an allen-bradley.  I've got a print out of the ladder and trying to do a straight conversion.  Most of the code if fairly straightforward but I'm not sure what the following rung does.  I know it is a special function of some type but I can't find any info on it.  Any ideas?

F1Rung.JPG.9f7db515a4a31fe142f032edecb85

Share this post


Link to post
Share on other sites

The F1 and F2 manuals are in the downloads section here, I added them a decade ago.

Share this post


Link to post
Share on other sites

Explanation is on page 164 of the F2 programming manual in the downloads section. It's a compare instruction.

Share this post


Link to post
Share on other sites

Got it.  The logic makes sense to me now.  Thanks for the help.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now