fixed scalar string issues

devices/clients/opcua_connection.py

@@ -51,6 +51,7 @@ class OPCUAConnection(CommClient):
             fault_func()
             return
 
+
         # determine namespace used
         try:
             if type(namespace) is str:
@@ -64,6 +65,7 @@ class OPCUAConnection(CommClient):
             self.name_space_index = 2
 
         self.obj = self.client.get_objects_node()
+        self.check_nodes()
 
     def _servername(self):
         return self.client.server_url.geturl()
@@ -83,6 +85,21 @@ class OPCUAConnection(CommClient):
             self.streams.error_stream("Could not connect to server %s: %s", self._servername(), e)
             raise Exception("Could not connect to server %s", self._servername()) from e
 
+    def check_nodes(self):
+        """
+        function purely for debugging/development only. Simply lists all top level nodes and the nodes below that
+        """
+
+        for i in self.obj.get_children():
+            print(i.get_browse_name())
+            for j in i.get_children():
+                try:
+                    print(j.get_browse_name(), j.get_data_type_as_variant_type())
+                except:
+                    print(j.get_browse_name())
+                finally:
+                    pass
+
 
     def disconnect(self):
         """
@@ -160,7 +177,6 @@ class OPCUAConnection(CommClient):
             self.streams.debug_stream("connected OPC ua node {} of type {} to attribute with dimensions: {} x {} ".format(str(node_name)[:len(node_name)-1], str(ua_type)[len("VariantType."):], dim_x, dim_y))
         except:
             pass
-
         # return the read/write functions
         return prot_attr.read_function, prot_attr.write_function
 
@@ -182,12 +198,17 @@ class ProtocolAttribute:
         """
         value = numpy.array(self.node.get_value())
 
-        if self.dim_y != 0:
+        if self.dim_y + self.dim_x == 1:
+            return numpy.array([value])
+        elif self.dim_y != 0:
             value = numpy.array(numpy.split(value, indices_or_sections=self.dim_y))
         else:
             value = numpy.array(value)
+
         return value
 
+
+
     def write_function(self, value):
         """
         write_RW function