diff --git a/.gitignore b/.gitignore
index bb40eab..b20e4b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ src/*.*+*
 pyrcc5/*.*~
 pyrcc5/*.*-*
 pyrcc5/*.*+*
+hush_devl.sh
diff --git a/src/gui.py b/src/gui.py
index 13fb243..d45bc96 100644
--- a/src/gui.py
+++ b/src/gui.py
@@ -332,20 +332,20 @@ class AppGui(QWidget):
         
         def receive_sec_state(handle, pv, pvdata):
             pvsplit = pv.split("-")
-            #secsplit = pvsplit[0].split("P")
-            #sec = secsplit[1]
             sec=pvsplit[0][1:]
-           
+            if pvdata.status == self.cyca.ICAFE_CA_OP_CONN_DOWN:      
+                return
             
             def already_in_standby():
                 
                 devices = self.settings.data[sec]["iocDevice"]
                 pv_list = []
                 standby_value_list = []
-                print("sector", sec, flush=True)
+               
                 for magnet in devices:
-                    pv = magnet + ":SOL:2"
-                    pv_list.append(pv)
+                    pv_magnet = magnet + ":SOL:2"
+                    pv_list.append(pv_magnet)
+                    #get standby values
                     idx = self.settings.data[sec]["device"].index(magnet)
                     standby_value = self.settings.data[sec]["standby"][idx]
                     standby_value_list.append(standby_value)
@@ -354,25 +354,27 @@ class AppGui(QWidget):
                 print("standby ist==>", standby_value_list, flush=True)
     
                 QApplication.processEvents()
-                #value_list, status, status_list = self.cafe.getScalarList(
-                #    pv_list, cacheFlag=True)
+                value_list, status, status_list = self.cafe.getScalarList(
+                    pv_list, cacheFlag=True)
+                
+                '''
                 value_list = []
                 for pv in pv_list:
-                    value_list.append(self.cafe.getCache(pv))
-                
+                    print("isConnected===>", flush=True)
+                    is_conn = self.cafe.isConnected(pv)
+                    print("isConnected===>", is_conn, flush=True)
+                    
+                for pv in pv_list:
+                    val = self.cafe.getCache(pv)
+                    if val is not None:
+                        value_list.append(val)
+                '''    
                 #print("status", status, status_list, flush=True)
                 print("valuelist==>", pv_list, value_list, flush=True) 
-                #if status != self.cyca.ICAFE_NORMAL:
-                #    self.check_status_list(_pymodule, "getScalarListCache",
-                #                           pv_list, status_list, _line())
-                #get standby values
-                '''
-                standby_value_list = []
-                for magnet in devices:
-                    idx = self.settings.data[sec]["device"].index(magnet)
-                    standby_value = self.settings.data[sec]["standby"][idx]
-                    standby_value_list.append(standby_value)
-                '''
+                if status != self.cyca.ICAFE_NORMAL:
+                    self.check_status_list(_pymodule, "getScalarListCache",
+                                           pv_list, status_list, _line())
+                #check standby values
                 in_standby = True  
                 for value, standby in zip(value_list, standby_value_list):
                     if abs(value) < abs(standby)*0.8 or abs(value) > abs(
@@ -382,7 +384,7 @@ class AppGui(QWidget):
                 print("is_standby", in_standby, flush=True)
                 return in_standby     
             
-            if pvdata.value[0] == 'ON': # and not already_in_standby():
+            if pvdata.value[0] == 'ON' and not already_in_standby():
                 print("pv, sec-ON", pv, sec, flush=True)
                 self.table_sol_dict[sec].init_value_button.setEnabled(True)
                 self.table_pwr_dict[sec].init_value_button.setEnabled(True)