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8.56 AccessRestrictionType ToC Previous Next index

This is a subtype of the UInt16 DataType with the OptionSetValues Property defined. It is used to define the access restrictions of a Node. The AccessRestrictionType is formally defined in Table 38.

Table 38 – AccessRestrictionType Definition

Name Bit Description
SigningRequired 0 The Client can only access the Node when using a SecureChannel which digitally signs all messages. This does not apply to the Browse permission if the ApplyRestrictionsToBrowse is not set.
EncryptionRequired 1 The Client can only access the Node when using a SecureChannel which encrypts all messages. This does not apply to the Browse permission if the ApplyRestrictionsToBrowse is not set.
SessionRequired 2 The Client cannot access the Node when using SessionlessInvoke Service invocation.
ApplyRestrictionsToBrowse 3 If this bit is set, the access restrictions SigningRequired and EncryptionRequired are also applied to the Browse permission defined in Table 37.

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