Siemens S7-300 and S7-400 Monitoring - Native PLC Visibility Without Gateways

This article introduces three new native PRTG sensors that provide direct visibility into Siemens S7-300 and S7-400 PLCs by communicating via the S7 protocol. These sensors eliminate the need for complex gateways or OPC servers, allowing users to monitor CPU status, restart patterns, and LED diagnostics within their existing dashboards. This integration bridges the gap between IT and OT by making critical industrial controllers as visible and monitorable as standard server infrastructure.