diff --git a/das/src/main/java/com/das/modules/node/command/HeartbeatCommand.java b/das/src/main/java/com/das/modules/node/command/HeartbeatCommand.java
index 22be0b41..3f0b1fa8 100644
--- a/das/src/main/java/com/das/modules/node/command/HeartbeatCommand.java
+++ b/das/src/main/java/com/das/modules/node/command/HeartbeatCommand.java
@@ -62,7 +62,7 @@ public class HeartbeatCommand implements BaseCommand{
                         adminRedisTemplate.set(keyCommFaultState, online ? 0 : 1);
                     }
                     else{
-                        adminRedisTemplate.set(keyCommFaultState, online && plcDeviceStatus != 0 ? 0 : 1);
+                        adminRedisTemplate.set(keyCommFaultState, online && (plcDeviceStatus != 0) ? 0 : 1);
                     }
                 }
             }
diff --git a/docs/deploy/asserts/image-redis03.png b/docs/deploy/asserts/image-redis03.png
deleted file mode 100644
index b9fa038a..00000000
Binary files a/docs/deploy/asserts/image-redis03.png and /dev/null differ