diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index bb7a6bf3e..49199bfcc 100755
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -35,6 +35,7 @@ set( PYTHON_FILES
     gotthard.py
     gotthard2.py
     moench.py
+    jsonproxy.py
     ctb.py
     jungfrau.py
     mythen3.py
diff --git a/python/scripts/cmd_python.py b/python/scripts/cmd_python.py
index 9b4ddf7a8..eaa282845 100644
--- a/python/scripts/cmd_python.py
+++ b/python/scripts/cmd_python.py
@@ -84,6 +84,7 @@ intentionally_missing  = [
                         'update', #use updateServerAndFirmare
                         'udp_validate', #use validateUdpConfiguration
                         'udp_reconfigure', #use reconfigureUdpDestination
+                        'emin', #use rx_jsonpara
 ]
 
 pycmd += intentionally_missing
diff --git a/python/slsdet/detector.py b/python/slsdet/detector.py
index 613f8516e..dcbb837a4 100755
--- a/python/slsdet/detector.py
+++ b/python/slsdet/detector.py
@@ -11,6 +11,7 @@ detectorType = slsDetectorDefs.detectorType
 from .utils import element_if_equal, all_equal, get_set_bits, list_to_bitmask
 from .utils import Geometry, to_geo, element, reduce_time, is_iterable
 from . import utils as ut
+from .jsonproxy import JsonProxy
 from .registers import Register, Adc_register
 import datetime as dt
 
@@ -275,9 +276,7 @@ class Detector(CppDetectorApi):
                     v = float(v)
                 self.setExptime(i, v)
         else:
-            if isinstance(t, int):
-                t = float(t)
-            self.setExptime(t)
+            ut.set_time_using_dict(self.setExptime, t)
 
 
 
@@ -305,7 +304,7 @@ class Detector(CppDetectorApi):
 
     @period.setter
     def period(self, t):
-        self.setPeriod(t)
+        ut.set_time_using_dict(self.setPeriod, t)
 
     @property
     @element
@@ -1168,13 +1167,33 @@ class Detector(CppDetectorApi):
 
     @property
     def rx_jsonpara(self):
-        raise NotImplementedError('use d.getAdditionalJsonParameter(\'key\')')
+        """
+        Get the receiver additional json parameter. In case the parameter is different between
+        the modules a list of strings will be returned. On setting the value is automatically
+        converted to a string. 
+
+        Examples:
+        -----------
+
+        >>> d.rx_jsonpara['emin']
+        '4500'
+
+        >>> d.rx_jsonpara['emin'] = 5000
+
+        """
+        return JsonProxy(self)
+
+
 
     @rx_jsonpara.setter
     def rx_jsonpara(self, args):
         for key, value in args.items():
             self.setAdditionalJsonParameter(key, str(value))
 
+    @property
+    @element
+    def rx_jsonaddheader(self):
+        return self.getAdditionalJsonHeader()
 
     @property
     def frameindex(self):
@@ -1264,7 +1283,8 @@ class Detector(CppDetectorApi):
 
     @subexptime.setter
     def subexptime(self, t):
-        self.setSubExptime(t)
+        ut.set_time_using_dict(self.setSubExptime, t)
+
 
     @property
     def subdeadtime(self):
@@ -1289,9 +1309,8 @@ class Detector(CppDetectorApi):
 
     @subdeadtime.setter
     def subdeadtime(self, t):
-        self.setSubDeadTime(t)
+        ut.set_time_using_dict(self.setSubDeadTime, t)
 
-    
     @property
     @element
     def parallel(self):
@@ -2201,3 +2220,6 @@ class Detector(CppDetectorApi):
         :setter: Not implemented
         """
         return self.getMeasuredCurrent(dacIndex.I_POWER_IO)
+
+
+
diff --git a/python/slsdet/utils.py b/python/slsdet/utils.py
index c7fd6517f..3474cda0e 100755
--- a/python/slsdet/utils.py
+++ b/python/slsdet/utils.py
@@ -115,4 +115,15 @@ def set_using_dict(func, args):
         for key, value in args.items():
             func(value, [key])
     else:
+        func(args)
+
+def set_time_using_dict(func, args):
+    if isinstance(args, dict):
+        for key, value in args.items():
+            if isinstance(value, int):
+                value = float(value)
+            func(value, [key])
+    else:
+        if isinstance(args, int):
+                args = float(args)
         func(args)
\ No newline at end of file