Maintenance Station with integrated SNMP OPC server With the aid of the SNMP (Simple Network Management Protocol) OPC server, which can be integrated in the SIMATIC Maintenance Station, it is possible to access SNMP diagnostic information from the Maintenance Station, for instance data supplied by SCALANCE network components, optical switch modules (OSMs), electrical switch modules (ESMs) or the SIMATIC PC/PG DiagMonitor. Advantages Network management with device identification and monitoring of the status of SNMP-capable devices SNMP-capable devices automatically integratable thanks to SNMP Mapper within STEP 7, i.e. automatic generation of OPC tags, alarm messages and faceplates for SNMP devices. Network and process can be monitored and diagnosed in one system, since SNMP can be used together with other communications protocols. Efficient configuration thanks to integration in STEP 7 engineering environment. Maintenance intervals (freely selectable) thanks to flexible programmable operating hours counter. Monitoring of devices without SNMP agents also possible.