diff --git a/plugins/file/file.json b/plugins/file/file.json
index fb713cb5..0286d3a1 100644
--- a/plugins/file/file.json
+++ b/plugins/file/file.json
@@ -5,6 +5,7 @@
             "regex": ""
         }
     ],
+    "group_interval": 1000,
     "file_length": {
         "name": "file_length",
         "description": "",
diff --git a/plugins/modbus/modbus-tcp-community.json b/plugins/modbus/modbus-tcp-community.json
index 65ef7ae8..ac82101a 100644
--- a/plugins/modbus/modbus-tcp-community.json
+++ b/plugins/modbus/modbus-tcp-community.json
@@ -25,6 +25,7 @@
 			"regex": "^[0-9]+!([0-1][0-9]+|[3-4][0-9]+\\.([0-9]|[0-1][0-5]))$"
 		}
 	],
+	"group_interval": 1000,
 	"host": {
 		"name": "host",
 		"description": "local ip in server mode, remote device ip in client mode",