I want to design a circuit that blocks input until the input signal equals the last output value. when the values are equal to the input data values, updating the output value begins. when the input signal is not equal to the last output value, the circuit is blocked again.

This work on the axoloti core does not work in the PD. how would I be able to do this?

pure data (https://i.stack.imgur.com/svk0m.png)
axoloti core (https://i.stack.imgur.com/9nUgc.png)

It works for me.......... but the value to be updated (repeated when it matches) needs to be banged into the right inlet of [==]

If you want only values greater than the last output use [>= ]...... greater than or equal......instead of [==]....... as with [==] the spigot is only open when the input equals the last output.
David.