diff --git a/ohmpi/ohmpi.py b/ohmpi/ohmpi.py
index ad45153b69451e6e96f8e9268a80618229d8e530..e67269a3075932445d68e4455690df52db8a5510 100644
--- a/ohmpi/ohmpi.py
+++ b/ohmpi/ohmpi.py
@@ -169,6 +169,12 @@ class OhmPi(object):
         cmd_id : str, optional
             Unique command identifier.
         """
+        # check arguments
+        if fw_in_csv is None:
+            fw_in_csv = self.settings['fw_in_csv']
+        if fw_in_zip is None:
+            fw_in_zip = self.settings['fw_in_zip']
+
         # check if directory 'data' exists
         ddir = os.path.split(filename)[0]
         if os.path.exists(ddir) is not True:
@@ -651,6 +657,12 @@ class OhmPi(object):
         cmd_id : str, optional
             Unique command identifier.
         """
+        # check arguments
+        if fw_in_csv is None:
+            fw_in_csv = self.settings['fw_in_csv']
+        if fw_in_zip is None:
+            fw_in_zip = self.settings['fw_in_zip']
+
         # switch power on
         self._hw.pwr_state = 'on'
         self.status = 'running'
diff --git a/settings/default.json b/settings/default.json
index 8e0510fa52c8ef3326f3671ed094dc658e8ec8d6..89f24ac1746e11b84a935acab9deb2ac42da5144 100644
--- a/settings/default.json
+++ b/settings/default.json
@@ -7,6 +7,7 @@
     "tx_volt": 5,
     "duty_cycle": 0.5,
     "strategy": "constant",
-    "fulldata": false,
+    "fw_in_csv": false,
+    "fw_in_zip": true,
     "export_path": "data/measurements.csv"
 }
\ No newline at end of file