Project Loading and Persistence

The working logic of the Soft PLC is identical to that of a physical PLC. Code changes made in the Development environment do not automatically transfer to the Runtime environment.

Loading Requirement

For a change made in the Ladder diagram or parameters to become active, you must perform the “Load” (Download) operation to the Soft PLC after Runtime has started.

Data Persistence

Data in the Soft PLC memory (Data Memory) is updated only when a load is performed or when modified by the program logic. Simply opening or closing the Development screen does not change the live values currently loaded.

Summary
If you have modified the Soft PLC code, you must load the project to the Soft PLC via the PLC Editor to see the changes in Runtime.