diff --git a/devices/APSCTL.py b/devices/APSCTL.py
new file mode 100644
index 0000000000000000000000000000000000000000..f1ea50f303e608230aaeba346dbd99bde8480773
--- /dev/null
+++ b/devices/APSCTL.py
@@ -0,0 +1,187 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of the SDP project
+#
+#
+#
+# Distributed under the terms of the APACHE license.
+# See LICENSE.txt for more info.
+
+""" SDP Device Server for LOFAR2.0
+
+"""
+
+# PyTango imports
+from tango.server import run
+from tango.server import device_property
+from tango import AttrWriteType
+# Additional import
+
+from clients.opcua_connection import OPCUAConnection
+from util.attribute_wrapper import attribute_wrapper
+from util.hardware_device import hardware_device
+
+from util.lofar_logging import device_logging_to_python, log_exceptions
+
+import numpy
+
+__all__ = ["APSCTL", "main"]
+
+@device_logging_to_python({"device": "APSCTL"})
+class APSCTL(hardware_device):
+    """
+
+    **Properties:**
+
+    - Device Property
+        OPC_Server_Name
+            - Type:'DevString'
+        OPC_Server_Port
+            - Type:'DevULong'
+        OPC_Time_Out
+            - Type:'DevDouble'
+    """
+
+    # -----------------
+    # Device Properties
+    # -----------------
+
+    OPC_Server_Name = device_property(
+        dtype='DevString',
+        mandatory=True
+    )
+
+    OPC_Server_Port = device_property(
+        dtype='DevULong',
+        mandatory=True
+    )
+
+    OPC_Time_Out = device_property(
+        dtype='DevDouble',
+        mandatory=True
+    )
+
+    # ----------
+    # Attributes
+    # ----------
+    N_unb = 2
+    N_fpga = 4
+    N_ddr = 2
+    N_qsfp = 6
+
+    # Central CP per Uniboard
+    UNB2_FPGA_DDR4_SLOT_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_DDR4_SLOT_TEMP_R"], datatype=numpy.double, dims=((N_unb * N_ddr), N_fpga))
+    UNB2_I2C_bus_QSFP_STATUS_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_I2C_bus_QSFP_STATUS_R"], datatype=numpy.int64, dims=((N_unb * N_fpga), N_qsfp))
+    UNB2_I2C_bus_DDR4_STATUS_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_I2C_bus_DDR4_STATUS_R"], datatype=numpy.int64, dims=(N_ddr, N_fpga))
+    UNB2_I2C_bus_FPGA_PS_STATUS_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_I2C_bus_FPGA_PS_STATUS_R"], datatype=numpy.int64, dims=(N_unb * N_fpga,))
+    UNB2_translator_busy_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_translator_busy_R"], datatype=numpy.bool_)
+
+    UNB2_Front_Panel_LED_RW = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_Front_Panel_LED_RW"], datatype=numpy.uint8, dims=(N_unb,), access=AttrWriteType.READ_WRITE)
+    UNB2_Front_Panel_LED_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_Front_Panel_LED_R"], datatype=numpy.uint8, dims=(N_unb,))
+    UNB2_EEPROM_Serial_Number_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_EEPROM_Serial_Number_R"], datatype=numpy.str, dims=(N_unb,))
+    UNB2_EEPROM_Unique_ID_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_EEPROM_Unique_ID_R"], datatype=numpy.uint32, dims=(N_unb,))
+    UNB2_FPGA_DDR4_SLOT_PART_NUMBER_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_DDR4_SLOT_PART_NUMBER_R"], datatype=numpy.str, dims=(N_unb * N_qsfp, N_fpga))
+    UNB2_monitor_rate_RW = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_monitor_rate_RW"], datatype=numpy.double, dims=(N_unb,), access=AttrWriteType.READ_WRITE)
+    UNB2_I2C_bus_STATUS_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_I2C_bus_STATUS_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_I2C_bus_PS_STATUS_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_I2C_bus_PS_STATUS_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_mask_RW = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_mask_RW"], datatype=numpy.double, dims=(N_unb,), access=AttrWriteType.READ_WRITE)
+    UNB2_Power_ON_OFF_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_Power_ON_OFF_R"], datatype=numpy.double, dims=(N_unb,), access=AttrWriteType.READ_WRITE)
+
+    UNB2_FPGA_QSFP_CAGE_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_QSFP_CAGE_TEMP_R"], datatype=numpy.double, dims=(N_unb * N_qsfp,N_fpga))
+    UNB2_FPGA_QSFP_CAGE_LOS_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_QSFP_CAGE_LOS_R"], datatype=numpy.uint8, dims=(N_unb * N_qsfp,N_fpga))
+    UNB2_FPGA_POL_HGXB_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_HGXB_VOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_HGXB_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_HGXB_IOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_HGXB_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_HGXB_TEMP_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_PGM_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_PGM_VOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_PGM_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_PGM_IOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_PGM_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_PGM_TEMP_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_RXGXB_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_RXGXB_VOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_RXGXB_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_RXGXB_IOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_RXGXB_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_RXGXB_TEMP_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_TXGXB_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_TXGXB_VOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_TXGXB_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_TXGXB_IOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_POL_FPGA_TXGXB_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_FPGA_TXGXB_TEMP_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_POL_FPGA_CORE_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_FPGA_CORE_VOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_CORE_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_CORE_IOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_CORE_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_CORE_TEMP_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_ERAM_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_ERAM_VOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_ERAM_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_ERAM_IOUT_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_FPGA_POL_ERAM_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_FPGA_POL_ERAM_TEMP_R"], datatype=numpy.double, dims=(N_unb,N_fpga))
+    UNB2_POL_CLOCK_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_CLOCK_VOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_CLOCK_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_CLOCK_IOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_CLOCK_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_CLOCK_TEMP_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_SWITCH_1V2_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_SWITCH_1V2_VOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_SWITCH_1V2_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_SWITCH_1V2_IOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_SWITCH_1V2_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_SWITCH_1V2_TEMP_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_SWITCH_PHY_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_SWITCH_PHY_VOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_SWITCH_PHY_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_SWITCH_PHY_IOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_SWITCH_PHY_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_SWITCH_PHY_TEMP_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_QSFP_N01_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_QSFP_N01_VOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_QSFP_N01_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_QSFP_N01_IOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_QSFP_N01_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_QSFP_N01_TEMP_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_QSFP_N23_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_QSFP_N23_VOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_QSFP_N23_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_QSFP_N23_IOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_POL_QSFP_N23_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_POL_QSFP_N23_TEMP_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_DC_DC_48V_12V_VIN_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_DC_DC_48V_12V_VIN_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_DC_DC_48V_12V_VOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_DC_DC_48V_12V_VOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_DC_DC_48V_12V_IOUT_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_DC_DC_48V_12V_IOUT_R"], datatype=numpy.double, dims=(N_unb,))
+    UNB2_DC_DC_48V_12V_TEMP_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_DC_DC_48V_12V_TEMP_R"], datatype=numpy.double, dims=(N_unb,))
+
+
+    # QualifiedName(2: UNB2_on)
+    # QualifiedName(2: UNB2_off)
+    @log_exceptions()
+    def delete_device(self):
+        """Hook to delete resources allocated in init_device.
+
+        This method allows for any memory or other resources allocated in the
+        init_device method to be released.  This method is called by the device
+        destructor and by the device Init command (a Tango built-in).
+        """
+        self.debug_stream("Shutting down...")
+
+        self.Off()
+        self.debug_stream("Shut down.  Good bye.")
+
+    # --------
+    # overloaded functions
+    # --------
+    @log_exceptions()
+    def configure_for_off(self):
+        """ user code here. is called when the state is set to OFF """
+
+        # Stop keep-alive
+        self.opcua_connection.stop()
+
+    @log_exceptions()
+    def configure_for_initialise(self):
+        """ user code here. is called when the sate is set to INIT """
+        """Initialises the attributes and properties of the PCC."""
+
+        # set up the OPC ua client
+        self.OPCua_client = OPCUAConnection("opc.tcp://{}:{}/".format(self.OPC_Server_Name, self.OPC_Server_Port), "http://lofar.eu", self.OPC_Time_Out, self.Fault, self)
+
+        # map an access helper class
+        for i in self.attr_list():
+            try:
+                i.set_comm_client(self.OPCua_client)
+            except:
+                self.debug_stream("error in getting APSCTL attribute: {} from client".format(i))
+
+        self.OPCua_client.start()
+
+    # --------
+    # Commands
+    # --------
+
+# ----------
+# Run server
+# ----------
+def main(args=None, **kwargs):
+    """Main function of the SDP module."""
+    return run((APSCTL,), args=args, **kwargs)
+
+
+if __name__ == '__main__':
+    main()
+
diff --git a/devices/clients/opcua_connection.py b/devices/clients/opcua_connection.py
index f55922df8dba4ca5dbb6c78db5600a7287d5f9ad..16ee124afc6f1742e7b1e6ceaadf8583ffd984c8 100644
--- a/devices/clients/opcua_connection.py
+++ b/devices/clients/opcua_connection.py
@@ -83,6 +83,21 @@ 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 +175,6 @@ 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
 
@@ -184,8 +198,11 @@ class ProtocolAttribute:
 
         if self.dim_y != 0:
             value = numpy.array(numpy.split(value, indices_or_sections=self.dim_y))
+        elif self.dim_y + self.dim_x == 1:
+            value = [numpy.array(value)]
         else:
             value = numpy.array(value)
+
         return value
 
     def write_function(self, value):
diff --git a/devices/examples/HW_device_template.py b/devices/examples/HW_device_template.py
index dd6cad99bd5824bd1b8a37a471aeb7796f32a05d..66b6bdb19c0b00703805dc2f76cce0d8208a36b2 100644
--- a/devices/examples/HW_device_template.py
+++ b/devices/examples/HW_device_template.py
@@ -17,6 +17,7 @@ from tango import AttrWriteType
 from util.attribute_wrapper import attribute_wrapper
 from util.hardware_device import hardware_device
 
+
 __all__ = ["HW_dev"]
 
 
@@ -55,24 +56,24 @@ class HW_dev(hardware_device):
     # --------
     # overloaded functions
     # --------
-    def fault(self):
+    def configure_for_fault(self):
         """ user code here. is called when the state is set to FAULT """
         pass
 
-    def off(self):
+    def configure_for_off(self):
         """ user code here. is called when the state is set to OFF """
         pass
 
-    def on(self):
+    def configure_for_on(self):
         """ user code here. is called when the state is set to ON """
 
         pass
 
-    def standby(self):
+    def configure_for_standby(self):
         """ user code here. is called when the state is set to STANDBY """
         pass
 
-    def initialise(self):
+    def configure_for_initialise(self):
         """ user code here. is called when the sate is set to INIT """
         pass