The above question arrived out of a discussion with a scandinavian customer.
The answer:
There is only FBD (function block diagram) as programming interface for users. The reasons are
- Most users ask for safety-certified, ready-to-use function blocks with maximum application-functionality inside, since it is the most efficient way to create applications
- Function block diagrams are easy to validate and the approval is facilitated
From time to time users ask for more freedom in programming, but this is a request for a specific solution already. We have to understand what's the use case behind that question, to see what we can do to fulfill the actual requirement. Example: It could be motivated by interactive & safe deactivation of maximum application parts, depending on the actual machine configuration.
Please add the use case information here.
BR
The ctrlX SAFETY Team
