diff --git a/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/handler/PIDControllerTriggerHandler.java b/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/handler/PIDControllerTriggerHandler.java
index 33a639c8c66..ef61c4bf6e2 100644
--- a/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/handler/PIDControllerTriggerHandler.java
+++ b/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/handler/PIDControllerTriggerHandler.java
@@ -47,6 +47,7 @@ import org.openhab.core.items.events.ItemStateEvent;
 import org.openhab.core.library.types.StringType;
 import org.openhab.core.types.RefreshType;
 import org.openhab.core.types.State;
+import org.openhab.core.types.UnDefType;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.ServiceRegistration;
 import org.slf4j.Logger;
@@ -73,10 +74,12 @@ public class PIDControllerTriggerHandler extends BaseTriggerModuleHandler implem
     private Item setpointItem;
     private Optional<String> commandTopic;
     private EventFilter eventFilter;
+    private EventPublisher eventPublisher;
 
     public PIDControllerTriggerHandler(Trigger module, ItemRegistry itemRegistry, EventPublisher eventPublisher,
             BundleContext bundleContext) {
         super(module);
+        this.eventPublisher = eventPublisher;
 
         Configuration config = module.getConfiguration();
 
@@ -210,7 +213,8 @@ public class PIDControllerTriggerHandler extends BaseTriggerModuleHandler implem
                 if ("RESET".equals(changedEvent.getItemState().toString())) {
                     controller.setIntegralResult(0);
                     controller.setDerivativeResult(0);
-                } else {
+                    eventPublisher.post(ItemEventFactory.createStateEvent(changedEvent.getItemName(), UnDefType.NULL));
+                } else if (changedEvent.getItemState() != UnDefType.NULL) {
                     logger.warn("Unknown command: {}", changedEvent.getItemState());
                 }
             } else {
diff --git a/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/type/PIDControllerTriggerType.java b/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/type/PIDControllerTriggerType.java
index 856ded793f3..0909c90abcb 100644
--- a/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/type/PIDControllerTriggerType.java
+++ b/bundles/org.openhab.automation.pidcontroller/src/main/java/org/openhab/automation/pidcontroller/internal/type/PIDControllerTriggerType.java
@@ -37,33 +37,67 @@ public class PIDControllerTriggerType extends TriggerType {
 
     public static PIDControllerTriggerType initialize() {
         List<ConfigDescriptionParameter> configDescriptions = new ArrayList<>();
-        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_INPUT_ITEM, Type.TEXT).withRequired(true)
-                .withReadOnly(true).withMultiple(false).withContext("item").withLabel("Input Item")
-                .withDescription("Item to monitor").build());
-        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_SETPOINT_ITEM, Type.TEXT)
-                .withRequired(true).withReadOnly(true).withMultiple(false).withContext("item").withLabel("Setpoint")
-                .withDescription("Targeted setpoint").build());
-        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KP_GAIN, Type.DECIMAL).withRequired(true)
-                .withMultiple(false).withDefault("1.0").withMinimum(BigDecimal.ZERO).withLabel("Proportional Gain (Kp)")
-                .withDescription("Change to output propertional to current error value.").build());
-        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KI_GAIN, Type.DECIMAL).withRequired(true)
-                .withMultiple(false).withDefault("1.0").withMinimum(BigDecimal.ZERO).withLabel("Integral Gain (Ki)")
-                .withDescription("Accelerate movement towards the setpoint.").build());
-        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KD_GAIN, Type.DECIMAL).withRequired(true)
-                .withMultiple(false).withDefault("1.0").withMinimum(BigDecimal.ZERO).withLabel("Derivative Gain (Kd)")
-                .withDescription("Slows the rate of change of the output.").build());
-        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KD_TIMECONSTANT, Type.DECIMAL)
-                .withRequired(true).withMultiple(false).withMinimum(BigDecimal.ZERO).withDefault("1.0")
-                .withLabel("Derivative Time Constant")
-                .withDescription("Slows the rate of change of the D part (T1) in seconds.").withUnit("s").build());
-        configDescriptions
-                .add(ConfigDescriptionParameterBuilder.create(CONFIG_COMMAND_ITEM, Type.TEXT).withRequired(false)
-                        .withReadOnly(true).withMultiple(false).withContext("item").withLabel("Command Item")
-                        .withDescription("You can send String commands to this Item like \"RESET\".").build());
-        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_LOOP_TIME, Type.DECIMAL)
-                .withRequired(true).withMultiple(false).withDefault(DEFAULT_LOOPTIME_MS).withLabel("Loop Time")
-                .withDescription("The interval the output value is updated in ms").withUnit("ms").build());
-
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_INPUT_ITEM, Type.TEXT) //
+                .withRequired(true) //
+                .withMultiple(false) //
+                .withContext("item") //
+                .withLabel("Input Item") //
+                .withDescription("Item to monitor") //
+                .build());
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_SETPOINT_ITEM, Type.TEXT) //
+                .withRequired(true) //
+                .withMultiple(false) //
+                .withContext("item") //
+                .withLabel("Setpoint") //
+                .withDescription("Targeted setpoint") //
+                .build());
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KP_GAIN, Type.DECIMAL).withRequired(true) //
+                .withMultiple(false) //
+                .withDefault("1.0") //
+                .withMinimum(BigDecimal.ZERO) //
+                .withLabel("Proportional Gain (Kp)") //
+                .withDescription("Change to output propertional to current error value.") //
+                .build());
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KI_GAIN, Type.DECIMAL) //
+                .withRequired(true) //
+                .withMultiple(false) //
+                .withDefault("1.0") //
+                .withMinimum(BigDecimal.ZERO) //
+                .withLabel("Integral Gain (Ki)") //
+                .withDescription("Accelerate movement towards the setpoint.") //
+                .build());
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KD_GAIN, Type.DECIMAL) //
+                .withRequired(true) //
+                .withMultiple(false) //
+                .withDefault("1.0") //
+                .withMinimum(BigDecimal.ZERO) //
+                .withLabel("Derivative Gain (Kd)") //
+                .withDescription("Slows the rate of change of the output.") //
+                .build());
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_KD_TIMECONSTANT, Type.DECIMAL) //
+                .withRequired(true) //
+                .withMultiple(false) //
+                .withMinimum(BigDecimal.ZERO) //
+                .withDefault("1.0") //
+                .withLabel("Derivative Time Constant") //
+                .withDescription("Slows the rate of change of the D part (T1) in seconds.") //
+                .withUnit("s") //
+                .build());
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_COMMAND_ITEM, Type.TEXT) //
+                .withRequired(false) //
+                .withMultiple(false) //
+                .withContext("item") //
+                .withLabel("Command Item") //
+                .withDescription("You can send String commands to this Item like \"RESET\".") //
+                .build());
+        configDescriptions.add(ConfigDescriptionParameterBuilder.create(CONFIG_LOOP_TIME, Type.DECIMAL) //
+                .withRequired(true) //
+                .withMultiple(false) //
+                .withDefault(DEFAULT_LOOPTIME_MS) //
+                .withLabel("Loop Time") //
+                .withDescription("The interval the output value is updated in ms") //
+                .withUnit("ms") //
+                .build());
         Output output = new Output(OUTPUT, BigDecimal.class.getName(), "Output", "Output value of the PID Controller",
                 null, null, null);
         Output pInspector = new Output(P_INSPECTOR, BigDecimal.class.getName(), "P Inspector",