diff --git a/OWNd/message/cen.py b/OWNd/message/cen.py
index 21e6afc..0c03a33 100644
--- a/OWNd/message/cen.py
+++ b/OWNd/message/cen.py
@@ -198,33 +198,23 @@ def action(self) -> str | None:
 
     @classmethod
     def turn_on(cls, where: str | int) -> OWNScenarioPlusCommand:
-        message = cls(f"*25*11#0*{where}##")
-        message._human_readable_log = f"Scenario plus {where}: on."
-        return message
+        return cls(f"*25*11#0*{where}##")
 
     @classmethod
     def turn_off(cls, where: str | int) -> OWNScenarioPlusCommand:
-        message = cls(f"*25*12*{where}##")
-        message._human_readable_log = f"Scenario plus {where}: off."
-        return message
+        return cls(f"*25*12*{where}##")
 
     @classmethod
     def increase(cls, where: str | int) -> OWNScenarioPlusCommand:
-        message = cls(f"*25*13#0#5*{where}##")
-        message._human_readable_log = f"Scenario plus {where}: increase."
-        return message
+        return cls(f"*25*13#0#5*{where}##")
 
     @classmethod
     def decrease(cls, where: str | int) -> OWNScenarioPlusCommand:
-        message = cls(f"*25*14#0#5*{where}##")
-        message._human_readable_log = f"Scenario plus {where}: decrease."
-        return message
+        return cls(f"*25*14#0#5*{where}##")
 
     @classmethod
     def stop(cls, where: str | int) -> OWNScenarioPlusCommand:
-        message = cls(f"*25*15*{where}##")
-        message._human_readable_log = f"Scenario plus {where}: stop."
-        return message
+        return cls(f"*25*15*{where}##")
 
 
 class OWNDryContactCommand(OWNCommand):
diff --git a/tests/test_who25_scenario_plus.py b/tests/test_who25_scenario_plus.py
index c20b57a..31ccd1b 100644
--- a/tests/test_who25_scenario_plus.py
+++ b/tests/test_who25_scenario_plus.py
@@ -7,11 +7,17 @@
 
 
 def test_builders_send_the_ts10_frames():
-    assert str(OWNScenarioPlusCommand.turn_on(11)) == "*25*11#0*11##"
-    assert str(OWNScenarioPlusCommand.turn_off(11)) == "*25*12*11##"
-    assert str(OWNScenarioPlusCommand.increase(11)) == "*25*13#0#5*11##"
-    assert str(OWNScenarioPlusCommand.decrease(11)) == "*25*14#0#5*11##"
-    assert str(OWNScenarioPlusCommand.stop(11)) == "*25*15*11##"
+    for cmd, action, expected_frame in [
+        (OWNScenarioPlusCommand.turn_on(11), "on", "*25*11#0*11##"),
+        (OWNScenarioPlusCommand.turn_off(11), "off", "*25*12*11##"),
+        (OWNScenarioPlusCommand.increase(11), "increase", "*25*13#0#5*11##"),
+        (OWNScenarioPlusCommand.decrease(11), "decrease", "*25*14#0#5*11##"),
+        (OWNScenarioPlusCommand.stop(11), "stop", "*25*15*11##"),
+    ]:
+        assert str(cmd) == expected_frame
+        assert cmd.action == action
+        assert cmd.object == "11"
+        assert cmd.human_readable_log == f"Scenario plus 11: {action}."
 
 
 def test_commands_and_events_are_routed():