Siemens SINUMERIK 840Dsl Configuration Manual page 8

Introduction
1.2 Features
● Support for File and Folder Objects
● Event based provision of SINUMERIK alarms and messages from HMI, NC and PLC (see
chapter Alarms (Page 47))
Security settings
The server provides the possibility to communicate in an unencrypted or encrypted way. The
following options are possible:
● None
● 128 Bit - Sign (Basic128Rsa15)
● 128 Bit - Sign & Encrypt (Basic128Rsa15)
● 256 Bit – Sign (Basic256Sha256)
● 256 Bit - Sign (Basic256)
● 256 Bit – Sign & Encrypt (Basic256Sha256)
● 256 Bit - Sign & Encrypt (Basic256)
NOTICE
Security risk of no or low encryption
During operational process, an encrypted communication must always be used for security
reasons.
Furthermore, the SINUMERIK OPC UA server provides the possibility of user administration,
which allows to assign access rights for each user individually (see chapter User
administration (Page 31)).
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SINUMERIK Integrate for Engineering Access MyMachine / OPC UA
Configuration Manual, 04/2018, 6FC5397-1DP41-0BA0