In the case of a system with a client-server structure problems might arise on individual stations if their system times are different. One sort of behavior that often occurs is that no operator messages are shown on the OS clients. Please make sure that all stations of the PCS 7 system have the identical time. To ensure that this requirement is fulfilled you can use the PCS 7 time-of-day synchronization. There is further information available under Entry ID: 16622902.