Hi everyone,


We're currently facing an issue in our HMI project. All the new signals have been added, but we’re getting error 2028, which says "Too many addresses" once we exceed 256 addresses.


If we delete enough signals, it works again — but that’s obviously not a viable long-term solution. So what we’re really looking for is:

• Any solutions or workarounds to reduce the number of used addresses?
• Is there a way to structure the signals differently — like using arrays, grouping, or similar — so that the HMI doesn’t treat them all as individual addresses?
• Or is the only option simply to add an extra HMI?

We’re open to any kind of input or clever tricks that might help.

 

Have you tried optimizing by using word-level addressing or structuring tags as arrays? Also, does your HMI platform support indirect addressing or tag multiplexing to cut down on address count?

 

I presume this is a Proface panel. Do all your tags have to be in the one table? Or can you have multiple tables with a max of 256 in each one?