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• OPC-10000-1 – OPC Unified Architecture - Part 1: Overview and Concepts
  6.3 SecureChannel Service Set
  security policy for the channel. A SecureChannel is separate from the UA Application Session ; however, a single UA Application Session may only be accessed via a single SecureChannel . This implies ... cannot be used to implement the SecureChannel Service Set . The relationship between the UA Application Session and the SecureChannel is illustrated in Figure 8 . The UA applications use the communication