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Because of the missing dynamic allocation, in normal it is not possible to write strings, some other data types, change array sizes ore or create or /delete nodes by an OPC UA client. Therefore, only numeric and boolean value attributes are writable by OPC UA clients. Because only the micro and nano profiles are supported, there is no support of eventsFurther writing of Node IDs is restricted to the same Node ID type, as before, i.e. a numerical Node ID cannot be overwritten by a string Node ID.
Simple Events are supported, but the content filter (Where Clause) has some restrictions:
The “Like” operator is not supported
The “Cast” operator does not support cast from and to strings.
The “Cast” operator does not support cast from and to (expanded) node IDs.
“Attribute operands” are not supported, only “Simple Attribute Operands” are allowed.