adding grace period

src/device/power_switch.cpp

@@ -66,7 +66,12 @@ void powerSwitch::updateOutletNumber() {
 
     int returnCode = outletNumberRecord.get(&newNumberOfOutlet);
     if (returnCode != CM_SUCCESS) {
-        fMfe->Msg(MERROR, __FUNCTION__, "Unable to read outlet record number");
+        if (gracePeriod < 0) {
+            fMfe->Msg(MERROR, __FUNCTION__,
+                      "Unable to read outlet record number");
+        } else {
+            gracePeriod--;
+        }
     }
 
     if (this->numberOfOutlet < newNumberOfOutlet) {

src/device/power_switch.h

@@ -16,8 +16,8 @@ class powerSwitch : public TMFeEquipment {
     mEpicsCa<int> outletNumberRecord;
     int numberOfOutlet;
     std::string equipmentPath;
-
     void updateOutletNumber();
+    int gracePeriod = 10;
 
     void sendCommand(int index);
 };