Process Control System
The Process Control System (Graphic Workstation) represents the highest level of the manmachine interface of the integrated automation system VISTA AUTOMATION and consists of one or several single working places.
The working places are equipped with high-quality computers with keyboard and trackball as equivalent input units as well as a high-resolution colour monitor (min. 1024×768 Pixel).
The different working places are redundant and monitor each other. Thanks to the permanent data compensation and the automatic error detection it is not necessary for a user to manually switch to the redundant station in case of an error.
Components, the continuous operation of which must be guaranteed, are UPS backed by an UPS (uninterruptible power supply) for the time interval stipulated by the classification authorities.
The implemented communication network (ETHERNET) with an optimized system bus protocol is capable of distributing both, a part mimic diagram invoked by the user and all alarms within 2 sec. or even faster
to up to 8 working places.
The open system architecture allows to process a distributed Client/Serverapplication via the network. Standard links are available.
The modern operating system Windows NT forms the basis for the process control software. It encompasses the possibility of implementing several language modules, which will also be considered in the ONLINE help.
Intelligent blocking mechanisms control the access rights of the individual working places and users. The access level is displayed. Besides the trend an alarm and event history for discrete status information does exist.