- SIMATIC MANAGER THE SQL SERVER CANNOT ACCESS DATA ARCHIVE
- SIMATIC MANAGER THE SQL SERVER CANNOT ACCESS DATA FULL
- SIMATIC MANAGER THE SQL SERVER CANNOT ACCESS DATA WINDOWS
Higher performance through load balancingĪutomatic switchover of the Web clients in the event a server fails Web server farms allow the number of Web clients to be increased as needed. Increased security and availability due to separation of the system server and Web serverĬomprehensive Web solutions for multiple or redundant WinCC servers The WinCC Web Server can also be configured on a WinCC (SCADA) client for even more security and availability. Through the diagnostic client, the service technician has secure access to any number of plants that have a WebNavigator server.ĭedicated Web server and Web server farms with load balancing In this case, the Web licensing is made for a diagnostic client locally on a service computer instead of on the system servers. The WebDiagnostics client was designed for maintenance and service of widely distributed plants. These are optimally suited for use in harsh industrial environments. Siemens offers rugged SIMATIC Industrial Thin Clients as operator terminals with high-resolution wide screen touch displays. including the WebNavigator client, runs on the terminal server. Only minimum requirements are placed on the hardware here because the entire application, i.e. SIMATIC Thin Clients) and mobile clients (PDA – Personal Digital Assistant) can be connected via thin client solutions with Microsoft Terminal Services.
SIMATIC MANAGER THE SQL SERVER CANNOT ACCESS DATA WINDOWS
Inexpensive but lower-performance Windows PCs, rugged on-site devices (e.g. Furthermore, the WebNavigator supports all commonly used IT security mechanisms such as routers, firewalls, proxy servers, SSL encryption and VPN technologies. For applications with very strict security requirements, logout after a user-defined time span is just as important as the ability to disable key combinations when it comes to security. Every login and logout can be traced via system events.
SIMATIC MANAGER THE SQL SERVER CANNOT ACCESS DATA FULL
Authorization levels govern whether an operator can simply monitor the plant (view only) or has partial or full authorization for operator control and monitoring. Simultaneous access to multiple Web servers and thus to multiple plants is even possible if this is started multiple times or its multi-tabbing functionality is used.Īll Web operator stations are integrated into the user administration of the system. Operator control and monitoring of a WinCC project via the Internet or an intranet is possible from any Windows computers, which are referred to as WebNavigator clients.Only MS Internet Explorer is required on the client side. Combining the system solutions creates a security concept that meets even high demands.įor WinCC single-user systems or WinCC server/client systems, web-based solutions can be implemented with the WebNavigator. The use of fail-safe SIMATIC S7 controllers can, if required, further increase availability at the control level. Two communications processors are plugged in and the communication paths are doubled. In addition to the option of using two servers connected in parallel via the WinCC/Redundancy option, you can also design the communication channels to the controller redundantly in a WinCC application. The automatic switchover to the redundant partner takes place not only when a server fails, but also in case of disturbed S7 process communication or faulty applications.Īdditional increase in system availability The clients connected to the servers are distributed among their original server partners again. Once this is complete, two equivalent servers/stations will be available again.
SIMATIC MANAGER THE SQL SERVER CANNOT ACCESS DATA ARCHIVE
When a failed partner is restored, all of the archived process values, messages (including statuses, acknowledgements, lists and comments), data from the user archive of the failure period and internal tags are automatically synchronized with the partner in the background – without affecting the running system. This ensures continuous plant visualization and operation on every operator station. In client/server mode, the clients are automatically switched from the failed server to the redundant partner. When one of the two WinCC stations fails, the other takes over the archiving of messages, process data and user data. The clients that are connected to the servers can be distributed to the servers as required, which leads to a reduced load. Normally, two WinCC stations or process data servers run completely in parallel, which means each station has its own process connection and own archives.