Security Settings of the OPC UA server - References - SIMATIC AX - AX Hardware Engineering documentation - Hardware Engineering,

Hardware Engineering reference
Portfolio
SIMATIC AX
Product
SIMATIC AX
Software version
2.0.0-alpha1.56
Edition
08/2025
Language
English (original)
Package Name
@ax/hw-docs

The following security policies are available for the OPC UA Server:

Name Description
NoSecurity Unsecured end point.
Basic256Sha256Sign Secure endpoint, supports a series of algorithms for 256-bit hashing and 256-bit encryption. This endpoint protects the integrity of the data through signing.
Basic256Sha256SignEncrypt Secure endpoint, supports a series of algorithms for 256-bit hashing and 256-bit encryption. This endpoint protects the integrity and confidentiality of the data through signing and encryption.

CAUTION

When the 'NoSecurity' security policy is configured, any OPC UA client can still connect using this setting, regardless of any other configured security policies.