S7

General

Driver	Protocol	Protocol standard / version	Official protocol certification	Included in Base License Package?	Additional Licensing Requirements	License Key (Code Meter)	Operating System
S7 Driver	S7	ISO-ON-TCP	❌	✔	IO based	S7	Windows | Linux

Network

Driver	Encrypted communication to periphery device	Client Or Server / TCP or UDP	Default Port	Firewall Direction
S7 Driver	❌	TCP Client	102	outbound

Configuration Details

Driver	Recommended/technical limit of connections per driver	Multiple driver instances	Redundant network	Redundant devices	Special hardware requirements
S7 Driver	256 (technical limit)	✔	✔	✔	❌

Communication

Driver	Polling	Poll on use	Single query	Unsolicited communication	Driver redundancy: Only active driver polls	Buffering
S7 Driver	✔	✔	✔	✔ (TSPP)	configurable	✔ (TSPP)

Engineering

Driver	Direct browsing of configuration/address data from connected devices	Import functionality of configuration/address data from external tools
S7 Driver	❌	❌

Special Telegrams

Driver	Native alarm transfer from connected devices / PLCs	Connection establishment without active address
S7 Driver	✔ (only for alarm modules: alarm, alarm_8, alarm_8p, alarm_s, notify, notify_8p; Windows only!)	✔

Timestamps and Synchronization

Driver	Timestamp transfer from periphery device	Time synchronization (WinCC OA to PLC)
S7 Driver	✔ (TSPP only)	✔