The first task of the engineering of an PROFINET IO-System is the planning of the IO-System.
Planning of a PROFINET IO-System can be structured in the following steps:
| Structure the IO-System: | Fix the relations between the IO-Controller and the IO-Devices for the cyclic data exchange |
| Define IO Controller: | Define an IO-Controller in charge of the IO-System |
| Collect IO-Devices: | Collect a list of IO-Devices with the included number of modules and input and output data for the control of the process |
| Specify Conformance: | Specify the Conformance Classes (CC) according the requirements of the application |
| Define Topology: | Define the topology of the network |
| Define Timing: | Define the timing requirements for the cyclic data |
| Define Addresses: | Define a naming and addressing schema |
