log sim state

src/apps/smart_grid/SmartOpcServer.cpp

@@ -44,6 +44,7 @@ private:
     void DataChange(uint32_t handle, const Node &node, const Variant &val, AttributeId attr) override
     {
         auto v = val.As<bool>();
+        std::cout << v << std::endl;
         m_state_machine.set_sim_mode_enabled(v);
     }
     SmgStateMachine &m_state_machine;