diff --git a/MP-IO/Controllers/WebAPI/CacheFilter.cs b/MP-IO/Controllers/WebAPI/CacheFilter.cs
new file mode 100644
index 00000000..d1176ce1
--- /dev/null
+++ b/MP-IO/Controllers/WebAPI/CacheFilter.cs
@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http.Headers;
+using System.Web;
+using System.Web.Http.Filters;
+
+namespace MP_IO.Controllers.WebAPI
+{
+    public class CacheFilter : ActionFilterAttribute
+    {
+        public int TimeDuration { get; set; }
+        public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
+        {
+            actionExecutedContext.Response.Headers.CacheControl = new CacheControlHeaderValue
+            {
+                MaxAge = TimeSpan.FromSeconds(TimeDuration),
+                MustRevalidate = true,
+                Public = true
+            };
+        }
+    }
+}
\ No newline at end of file
diff --git a/MP-IO/Controllers/WebAPI/IOBController.cs b/MP-IO/Controllers/WebAPI/IOBController.cs
index 53aa3c8b..e9ddb9f9 100644
--- a/MP-IO/Controllers/WebAPI/IOBController.cs
+++ b/MP-IO/Controllers/WebAPI/IOBController.cs
@@ -1,4 +1,6 @@
-using System;
+using MapoDb;
+using SteamWare;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
@@ -9,18 +11,63 @@ namespace MP_IO.Controllers.WebAPI
 {
     public class IOBController : ApiController
     {
-        // GET api/IOB
-        //[ResponseCache(Duration = 10)]
+        /// <summary>
+        /// GET api/IOB 
+        /// è un check alive del server
+        /// </summary>
+        /// <returns></returns>
+        [CacheFilter(TimeDuration = 10)]
         [HttpGet]
         public string Get()
         {
+            if (memLayer.ML.CRB("IOB_RedEnab"))
+            {
+                // conto la richiesta nel contatore REDIS
+                long nCall = memLayer.ML.setRCntI(DataLayer.mHash("COUNT:pCall:IOB_INDEX"));
+                //... se == nCall2Log scrivo su log e resetto
+                long nCall2Log = memLayer.ML.cdvi("nCall2Log");
+                if (nCall >= nCall2Log)
+                {
+                    // loggo
+                    logger.lg.scriviLog(string.Format("IOB_INDEX: effettuate {0} call", nCall), tipoLog.INFO);
+                    // resetto!
+                    memLayer.ML.resetRCnt(DataLayer.mHash("COUNT:pCall:IOB_INDEX"));
+                }
+            }
             return "OK";
         }
 
-        // GET api/<controller>/5
-        public string Get(int id)
+        /// <summary>
+        /// GET api/IOB/SIMUL_03
+        /// Verifica stato enabled di un determinato IOB
+        /// </summary>
+        /// <param name="id"></param>
+        /// <returns></returns>
+        [CacheFilter(TimeDuration = 5)]
+        [HttpGet]
+        public string Get(string id)
         {
-            return "value";
+            string answ = "ND";
+            // se id nullo --> KO!
+            if (id == null)
+            {
+                answ = "KO";
+            }
+            else
+            {
+                try
+                {
+                    DataLayer DataLayerObj = new DataLayer();
+                    // salvo risposta!
+                    answ = DataLayerObj.insEnab(id) ? "OK" : "NO";
+                }
+                catch (Exception exc)
+                {
+                    logger.lg.scriviLog(string.Format("Errore in enabled{0}{1}", Environment.NewLine, exc));
+                    answ = "NO";
+                }
+            }
+            return answ;
         }
 
         // POST api/<controller>
diff --git a/MP-IO/MP-IO.csproj b/MP-IO/MP-IO.csproj
index 90a79765..8a5fab7a 100644
--- a/MP-IO/MP-IO.csproj
+++ b/MP-IO/MP-IO.csproj
@@ -275,6 +275,7 @@
     <Compile Include="App_Start\WebApiConfig.cs" />
     <Compile Include="Controllers\BENCH.cs" />
     <Compile Include="Controllers\IOBController.cs" />
+    <Compile Include="Controllers\WebAPI\CacheFilter.cs" />
     <Compile Include="Controllers\WebAPI\IOBController.cs" />
     <Compile Include="default.aspx.cs">
       <DependentUpon>default.aspx</DependentUpon>