The Siemens Division Industry Automation has expanded its Simatic WinCC/DowntimeMonitor and Simatic WinCC/DataMonitor software options for the Simatic WinCC V7 Scada system. The DowntimeMonitor can now also be used for equipment with varying production speeds. The shift model has also been enhanced to include up to three shift calendars for comparing the use of machines and plants with different shift models. This feature can prove useful for analysing production fluctuations, for example when two machines deliver varying product qualities or quantities when operating under otherwise identical conditions. The DataMonitor tag selection for the Webcenter has also been improved.