Upload Information

Upload information consists of:

  • Project upload information: graphic code for languages with LD contacts and chart of FBD function blocks, symbols of located and unlocated variables,

  • Comments: variables, code sections, project, DFBs, etc.,

  • Animation tables.

These are always saved when a project backup is performed on the terminal (STU or STA file), but may or may not be included with the executable code when building the project which is then transferred to the PLC.

Use of Upload Information

Upload information should only be loaded in the PLC where this is strictly necessary, in order to optimize the available memory size and save this for the executable code, and also to improve the performance of modifications in online mode.

In the coding and debug phase, this information is generally present on the workstation and therefore does not need to be transferred to the PLC, thus achieving a real gain in performance.

In the maintenance and operation phase, this information should be included in the PLC where the application needs to be restored on empty terminals (i.e. that do not have the project STU or STA file). However, in addition to the gain in memory space, the absence of the Upload information also forms a protection against reading and writing.

Choice of Upload Information

By default, the upload information necessary to rebuild the project program is not embedded in the PLC.

You can choose the information to have embedded:

  • The information necessary for uploading the project,

  • Comments (variables and types),

  • The animation tables.

To access the Upload information select: Tools > Project Settings > PLC Embedded data

Update

When making modifications in online mode, it is possible to choose between 2 modes of updating the Upload information:

  • Automatic update; in which case the update of Upload information is implicit on each build,

  • Update on user request; in which case the update is performed explicitly, by the clicking PLC > Update Upload Information.

The way in which upload information is updated is chosen in the Project Settings screen and is accessible by: Tools > Project Settings > PLC Embedded data

NOTE: The upload information is updated implicitly whenever a terminal project is transferred to the PLC (where this is included with the executable code).

On connection, a message asks you to confirm the update of the Upload information, if this has not already been performed.