IRT Controller
If the device is operated with an IRT-capable controller, an additional Synchronization menu appears.
Here it is possible to specify the Ti and To factors (Time Ti, Time To) for IRT-capable devices. This means the time during which the data in the device are valid within a cycle, or should be set to valid. The prerequisite is that this feature is also supported. The GSMDL supplies the information about this. There is always a basic cycle here (base time). A statement about the minimum possible time comes via the GSDML on the basis of a minimum factor. The upper limit of the factor is limited by the cycle time employed. The shortest possible time in which the data could be valid over PROFINET (always in reference to the cycle) is displayed via the Time Input Valid or Time Output Valid parameter.