diff --git a/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/PtlPcnEnumUtil.java b/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/PtlPcnEnumUtil.java
index 36bf1fe..ea9fc99 100644
--- a/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/PtlPcnEnumUtil.java
+++ b/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/PtlPcnEnumUtil.java
@@ -286,7 +286,7 @@ public class PtlPcnEnumUtil {
     }
 
     /**
-     * 反馈信号子命令
+     * 反馈信号子命令(灭灯状态)
      */
     @JsonFormat(shape = JsonFormat.Shape.OBJECT)
     public enum SIGNAL_CHILD_CMD {
@@ -312,6 +312,16 @@ public class PtlPcnEnumUtil {
             this.description = description;
         }
 
+        public static SIGNAL_CHILD_CMD getByValue(String code) {
+            for (SIGNAL_CHILD_CMD signalChildCmd : values()) {
+                if (signalChildCmd.getCode() == code) {
+                    return signalChildCmd;
+                }
+            }
+            return null;
+        }
+
+
         public String getCode() {
             return code;
         }