S7-1200 User-Defined Web Page Enumerations

Hello all,

I am trying to create a webserver for a PLC project. I have a few different boolean variables that I want to be able to monitor and change on the webserver. Currently, I have the HTML written to change these variables with a button, but I also want to display enumerations to label whether each boolean is 0 or 1. To that end, I have written an enumeration that gives two possible strings that are printed to indicate if the boolean is 0 or 1. 

The buttons I have for editing the booleans work fine until I introduce the enumerations. Once I add enumerations in, the buttons I have to edit the booleans no longer work. I have attached a snippet of the code I have written. The goal here is to have the two buttons (enable and disable) that turn the boolean to 1 or 0, and display the status "Circulator Coolant Flow: Disabled/Enabled" depending on the state of the boolean. This current code results in the status being displayed properly, but does not allow me to edit the booleans from the webserver.

I've looked at the user-defined webpage examples online and haven't found the problem yet. Is anything jumping out that might be screwing things up? Any help is appreciated. 

Edit: The actual name of the data tag I am editing in the PLC program is, as shown, "Data Tags".bCircCoolFlow_EN