Corrected from:
PLC Designer V3.14
L_EATP_ApplicationTemplate library V3.14
ApplicationTemplate Standard project template V3.14
Response of the new version:
If for more than one machine module in the MMT (Machine Module Tree) block the 'masterBus' input is not connected, the Application Template outputs the 'Duplicated root module' system error message. No exception occurs.
What happens?
The following exception occurs after starting the PLC program in the controller:
EXCEPTION [AccessVialotion] occurred: App=[Application], Task=[TaskHighPriority]
When does this behaviour occur?
An exception occurs, if in the MMT (Machine Module Tree) block, the 'masterBus' input is not assigned for several machine modules.
Which products are affected?
PLC Designer V3.13
L_EATP_ApplicationTemplate library V3.13
ApplicationTemplate Standard project template V3.13
Short-term measures:
Ensure that in the MMT block all slave machine modules are connected with the higher-level machine module via their 'masterBus' input.
Evaluation/recommendations:
If a slave machine module in the MMT block is not connected to another machine module, an exception will occur as a result. The function restriction can be detected directly after downloading the project. Only for the higher-level master machine module (typically MM_MachineControl), the 'masterBus' input remains unassigned.
