diff --git a/tests/config/bpms.yaml b/tests/config/bpms.yaml
index ec190c7d..b68f02c9 100644
--- a/tests/config/bpms.yaml
+++ b/tests/config/bpms.yaml
@@ -18,11 +18,11 @@ instruments:
       model:
         type: pyaml.bpm.bpm_tiltoffset_model
         x_pos:
-          type: tango.pyaml.attribute
+          type: tango.pyaml.attribute_read_only
           attribute: srdiag/bpm/c01-01/SA_HPosition
           unit: mm
         y_pos:
-          type: tango.pyaml.attribute
+          type: tango.pyaml.attribute_read_only
           attribute: srdiag/bpm/c01-01/SA_VPosition
           unit: mm
         x_offset:
@@ -42,11 +42,11 @@ instruments:
       model:
         type: pyaml.bpm.bpm_simple_model
         x_pos:
-          type: tango.pyaml.attribute
+          type: tango.pyaml.attribute_read_only
           attribute: srdiag/bpm/c01-02/SA_HPosition
           unit: mm
         y_pos:
-          type: tango.pyaml.attribute
+          type: tango.pyaml.attribute_read_only
           attribute: srdiag/bpm/c01-02/SA_VPosition
           unit: mm
     - type: pyaml.bpm.bpm
@@ -54,11 +54,11 @@ instruments:
       model:
         type: pyaml.bpm.bpm_simple_model
         x_pos:
-          type: tango.pyaml.attribute
+          type: tango.pyaml.attribute_read_only
           attribute: srdiag/bpm/c01-03/SA_HPosition
           unit: mm
         y_pos:
-          type: tango.pyaml.attribute
+          type: tango.pyaml.attribute_read_only
           attribute: srdiag/bpm/c01-03/SA_VPosition
           unit: mm
     - type: pyaml.magnet.cfm_magnet
diff --git a/tests/dummy_cs/tango/tango/pyaml/attribute_read_only.py b/tests/dummy_cs/tango/tango/pyaml/attribute_read_only.py
new file mode 100644
index 00000000..cce5bcff
--- /dev/null
+++ b/tests/dummy_cs/tango/tango/pyaml/attribute_read_only.py
@@ -0,0 +1,46 @@
+from pydantic import BaseModel,ConfigDict
+from pyaml.control.deviceaccess import DeviceAccess
+from pyaml.control.readback_value import Value
+
+PYAMLCLASS : str = "AttributeReadOnly"
+
+class ConfigModel(BaseModel):
+
+    model_config = ConfigDict(arbitrary_types_allowed=True,extra="forbid")
+
+    attribute: str
+    unit: str = ""
+
+class AttributeReadOnly(DeviceAccess):
+    """
+    Class that implements a default device class that just prints out 
+    values (Debugging purpose)
+    """
+    def __init__(self, cfg: ConfigModel):
+        super().__init__()
+        self._cfg = cfg
+        self._setpoint = cfg.attribute
+        self._readback = cfg.attribute
+        self._unit = cfg.unit
+        self._cache = 0.0
+
+    def name(self) -> str:
+        return self._setpoint
+
+    def measure_name(self) -> str:
+        return self._readback
+
+    def set(self, value: float):
+        raise Exception(f"{self._cfg.attribute} is read only attribute")
+
+    def set_and_wait(self, value: float):
+        raise Exception(f"{self._cfg.attribute} is read only attribute")
+
+    def get(self) -> float:
+        return self._cache
+
+    def readback(self) -> Value:
+        return Value(self._cache)
+
+    def unit(self) -> str:
+        return self._unit