8 Standard DataTypes

8.56 AccessRestrictionType

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.