diff --git a/inc/hoymiles/dtu.h b/inc/hoymiles/dtu.h
index b5f98bc..bf11234 100644
--- a/inc/hoymiles/dtu.h
+++ b/inc/hoymiles/dtu.h
@@ -33,6 +33,8 @@ class Dtu {
 
 	void setStatusMicroinverters(uint16_t value, std::string statusName, std::vector<long long>& microinvertersToSet);
 
+	bool empty();
+
 	~Dtu();
 };
 
diff --git a/src/hoymiles/dtu.cpp b/src/hoymiles/dtu.cpp
index 0f7ce54..85859fa 100644
--- a/src/hoymiles/dtu.cpp
+++ b/src/hoymiles/dtu.cpp
@@ -141,4 +141,8 @@ void Dtu::setStatusMicroinverters(uint16_t value, std::string statusName, std::v
 		}
 		microinvertersToSetIterator++;
 	}
+}
+
+bool Dtu::empty() {
+	return this->microinverters.empty();
 }
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index c8c3aa1..3c461e3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -88,7 +88,7 @@ int main(int argc, char **argv) {
 	std::cout << "DTU construction time: " << std::chrono::duration_cast<std::chrono::milliseconds>(endTime - startTime).count() << "ms" << std::endl;
 	std::cout << std::endl << std::endl;
 
-	while (!writeMode && ((dtu.isConnected() || ignoreNotConnected) && (!parametersToGet.empty() || allParameters))) {
+	while (!writeMode && (!dtu.empty() && ((dtu.isConnected() || ignoreNotConnected) && (!parametersToGet.empty() || allParameters)))) {
 		time_t now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
 
 		startTime = std::chrono::high_resolution_clock::now();