diff --git a/cfg/addons/vsource_cfg.py b/cfg/addons/vsource_cfg.py
index cb99046..28631ac 100644
--- a/cfg/addons/vsource_cfg.py
+++ b/cfg/addons/vsource_cfg.py
@@ -7,7 +7,8 @@ Node('k2601b.psi.ch',
 Mod('vsource_io',
     'frappy_psi.k2601b.K2601bIO',
     'source meter',
-    uri = '129.129.156.90:5025',
+#    uri = '129.129.156.90:5025',
+     uri = "sans-sample-ts:3011"
 )
 
 
diff --git a/frappy_psi/k2601b.py b/frappy_psi/k2601b.py
index 9e51ccf..fc8c9d9 100644
--- a/frappy_psi/k2601b.py
+++ b/frappy_psi/k2601b.py
@@ -54,7 +54,7 @@ class SourceMeter(HasIO, Module):
     mode = Parameter('measurement mode', EnumType(off=0, current=1, voltage=2),
                      readonly=False, export=False)
     ilimit = Parameter('current limit', FloatRange(0, 2.0, unit='A'), default=2)
-    vlimit = Parameter('voltage limit', FloatRange(0, 2.0, unit='V'), default=2)
+    vlimit = Parameter('voltage limit', FloatRange(0, 6.0, unit='V'), default=2)
 
     ioClass = K2601bIO
 
@@ -81,12 +81,12 @@ class SourceMeter(HasIO, Module):
 
     def read_vlimit(self):
         if self.mode == 'voltage':
-            return self.ilimit
+            return self.vlimit
         return float(self.communicate('print(smua.source.limitv)'))
 
     def write_vlimit(self, value):
         if self.mode == 'voltage':
-            return self.ilimit
+            return self.vlimit
         return float(self.communicate(f'smua.source.limitv = {value:g} print(smua.source.limitv)'))