OPC UA Client - AC

General

Driver	Protocol	Protocol standard / version	Official protocol certification	Included in Base License Package?	Additional Licensing Requirements	License Key (Code Meter)	Operating System
OPC UA (AC)	OPC UA	IEC 62541	❌	✔	IO based	OPC UA Client	Windows | Linux

Network

Driver	Encrypted communication to periphery device	Client Or Server / TCP or UDP	Default Port	Firewall Direction
OPC UA (AC)	✔	TCP Client	4840	outbound

Configuration Details

Driver	Recommended/technical limit of connections per driver	Multiple driver instances	Redundant network	Redundant devices	Special hardware requirements
OPC UA (AC)	50 (technical limit)	✔	❌	✔	❌

Communication

Driver	Polling	Poll on use	Single query	Unsolicited communication	Driver redundancy: Only active driver polls	Buffering
OPC UA (AC)	✔	N/A	N/A	✔	N/A	✔

Engineering

Driver	Direct browsing of configuration/address data from connected devices	Import functionality of configuration/address data from external tools
OPC UA (AC)	✔	❌

Special Telegrams

Driver	Native alarm transfer from connected devices / PLCs	Connection establishment without active address
OPC UA (AC)	✔	✔

Timestamps and Synchronization

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