diff --git a/src/com.cpp b/src/com.cpp
index 51163bc..a72ee4f 100644
--- a/src/com.cpp
+++ b/src/com.cpp
@@ -55,9 +55,10 @@ void T_com::writeToSerial(const QByteArray &data, uint16_t sendLength)
         writeCount += 1;
 
         // only for debugging
-        // qCritical() << __func__ << ":" << __LINE__ << QDateTime::currentDateTime().time().toString(Qt::ISODateWithMs)
-        //            << "write cmd" << (unsigned int)data.constData()[2];
-
+        // if ((unsigned int)data.constData()[2] == 31) { // request dynamic data
+        //    qCritical() << __func__ << ":" << __LINE__ << QDateTime::currentDateTime().time().toString(Qt::ISODateWithMs)
+        //                << "write cmd" << (unsigned int)data.constData()[2];
+        //}
     } else {
         qCritical() << __func__ << ":" << __LINE__
                     << "ERROR sending" << data.toHex(':') << "port is not open";