S7Plus

General

Driver	Protocol	Protocol standard / version	Official protocol certification	Included in Base License Package?	Additional Licensing Requirements	License Key (Code Meter)	Operating System
S7Plus Driver	S7PLUS (OMS+)	ISO_ON_TCP	❌	8 Connections	IO based | Number of connections	S7+	Windows | Linux

Network

Driver	Encrypted communication to periphery device	Client Or Server / TCP or UDP	Default Port	Firewall Direction
S7Plus Driver	✔ (TIA V17 or higher only)	TCP Client	102	outbound

Configuration Details

Driver	Recommended/technical limit of connections per driver	Multiple driver instances	Redundant network	Redundant devices	Special hardware requirements
S7Plus Driver	100	✔ (The maximum number of instances per host is 30. For further instances another machine must be added.)	✔	✔	❌

Communication

Driver	Polling	Poll on use	Single query	Unsolicited communication	Driver redundancy: Only active driver polls	Buffering
S7Plus Driver	✔	✔	✔	✔ (Subscriptions + TSPP)	configurable	✔ (TSPP)

Engineering

Driver	Direct browsing of configuration/address data from connected devices	Import functionality of configuration/address data from external tools
S7Plus Driver	✔	✔ (from a TIA-Portal export-file)

Special Telegrams

Driver	Native alarm transfer from connected devices / PLCs	Connection establishment without active address
S7Plus Driver	✔ (only for Program_Alarm and Diagnostic Alarm, see Notes & Restrictions)	✔

Timestamps and Synchronization

Driver	Timestamp transfer from periphery device	Time synchronization (WinCC OA to PLC)
S7Plus Driver	✔ (Subscription & TSPP)	✔