Corrected from:
PLC Designer V3.5
Controller 3200 C
Controller p500
Response of the new version?
If an online change causes a change of the initial value of one or several variables and if a boot project is created afterwards, PLC processing is automatically started after mains switching. A log-in with the PLC Designer to the Controller is possible.
Which products are affected?
PLC Designer from V3.2
Controller 3200 C
Controller p500
What happens?
When the boot project is created, an error message appears in the PLC Designer's message window.
After mains switching…
? the PLC project is not started.
? the PLC Designer cannot log on to the Controller.
When does the problem occur?
The above-described reactions can occur if a boot project is created (menu Online>Create boot project for L-force Controllers) after having changed the initial value of one or several variables by an online change.
Diagnostic options?
If you have connected a monitor to the controller, check if the controller indicates the following error message:
'Exception occurred in CMInit: ExceptionCode = 0x00000005'
Short-term measures/recommendations?
? Execute the 'Clean all' command after the online change. Load the project into the controller before creating the boot project online.
? If the function restriction has already occurred:
Switch off the controller and remove the SD card. Use a card reader and delete the controller's boot project on the SD card. For this, remove the files 'application.app' and 'application.crc' from the '/IPC/PLC' SD card directory. Restart the controller with the SD card, download the project once again using the PLC Designer and then create the boot project.
Evaluation
To save a project change, e.g. by means of an online change, fail-safe in the controller, a boot project must be created in the controller. If a boot project is created online after an online change, the boot project may be corrupt. After switching the mains for the controller, the above-described reactions will occur when the corrupt boot project is loaded. Going online with the controller again is only possible after the SD card of the controller's boot project has been deleted.