diff -r 0f1081928d65 -r 2269739dd098 connectors/PYRO/__init__.py
--- a/connectors/PYRO/__init__.py	Thu Sep 28 15:17:57 2017 +0300
+++ b/connectors/PYRO/__init__.py	Thu Sep 28 16:25:05 2017 +0300
@@ -134,7 +134,7 @@
 
     # Check connection is effective.
     # lambda is for getattr of GetPLCstatus to happen inside catcher
-    if PyroCatcher(lambda: RemotePLCObjectProxy.GetPLCstatus())() is None:
+    if PyroCatcher(RemotePLCObjectProxy.GetPLCstatus)() is None:
         confnodesroot.logger.write_error(_("Cannot get PLC status - connection failed.\n"))
         return None