SSI

General

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

Network

Driver	Encrypted communication to periphery device	Client Or Server / TCP or UDP	Default Port	Firewall Direction
SSI Driver	❌	TCP Client | TCP Server	2073	outbound | inbound

Configuration Details

Driver	Recommended/technical limit of connections per driver	Multiple driver instances	Redundant network	Redundant devices	Special hardware requirements
SSI Driver	100	✔ (different port for server mode)	✔	✔	❌

Communication

Driver	Polling	Poll on use	Single query	Unsolicited communication	Driver redundancy: Only active driver polls	Buffering
SSI Driver	❌	❌	❌	✔	❌	❌

Engineering

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

Special Telegrams

Driver	Native alarm transfer from connected devices / PLCs	Connection establishment without active address
SSI Driver	❌	✔ (Connection needs to be configured within the config file)

Timestamps and Synchronization

Driver	Timestamp transfer from periphery device	Time synchronization (WinCC OA to PLC)
SSI Driver	✔	❌