diff --git a/apps/modbus/src/modbus_device.erl b/apps/modbus/src/modbus_device.erl
index 2d3a6fb..b67c171 100644
--- a/apps/modbus/src/modbus_device.erl
+++ b/apps/modbus/src/modbus_device.erl
@@ -48,7 +48,7 @@ start_link(ParentPid, Device = #modbus_device{}) when is_pid(ParentPid) ->
     {stop, Reason :: term()} | ignore).
 init([ParentPid, Device = #modbus_device{metrics = Metrics0, poll_interval = PollInterval}]) ->
 
-    lager:debug("device is: ~p", [Device]),
+    lager:warning("device metrics is: ~p", [Metrics0]),
 
     %% 处理采集项目
     MetricsMap = maps:from_list(lists:map(fun(Metric0 = #modbus_metric{name = Name}) -> {Name, Metric0} end, Metrics0)),
diff --git a/apps/modbus/src/modbus_service.erl b/apps/modbus/src/modbus_service.erl
index ce443f1..93568e2 100644
--- a/apps/modbus/src/modbus_service.erl
+++ b/apps/modbus/src/modbus_service.erl
@@ -83,15 +83,16 @@ start_link(AST = #ast{}) ->
 %% gen_statem:start_link/[3,4], this function is called by the new
 %% process to initialize.
 init([AST = #ast{modbus = Modbus = #modbus{error_log = ErrorLog, access_log = AccessLog}, device_ios = IOs, devices = Devices, alarms = Alarms}]) ->
-    lager:debug("[modbus_service] ast is: ~p", [AST]),
+    %lager:debug("[modbus_service] ast is: ~p", [AST]),
     lager:debug("[modbus_service] io is: ~p", [IOs]),
-    lager:debug("[modbus_service] devices is: ~p", [Devices]),
+    %lager:debug("[modbus_service] devices is: ~p", [Devices]),
 
     %% 建立连接
     erlang:start_timer(0, self(), modbus_connect),
 
     %% 启动设备相关的进程
     DevicesPids = lists:map(fun(Device = #modbus_device{slave_id = SlaveId}) ->
+        lager:debug("merge result is: ~p", [merge_io(Device, IOs)]),
         {ok, DevicePid} = modbus_device:start_link(self(), merge_io(Device, IOs)),
         {SlaveId, DevicePid}
                         end, Devices),
diff --git a/modbus.conf b/modbus.conf
index 1853668..bfa0acb 100644
--- a/modbus.conf
+++ b/modbus.conf
@@ -76,7 +76,7 @@ device boiler_controller {
     model "Siemens S7-1200";
     description "Main boiler controller";
 
-    io t1;
+    device_io t1;
 
     # 写入控制
     controls {