--- a/etherlab/etherlab.py	Fri Nov 16 00:23:35 2012 +0100
+++ b/etherlab/etherlab.py	Fri Nov 16 23:43:45 2012 +0100
@@ -209,20 +209,22 @@
     ]
     EXTRA_NODE_VARIABLES_DICT = dict([("Enable" + name, value) for name, value in EXTRA_NODE_VARIABLES])
 
-    BLOCK_INPUT_TEMPLATE = "    __SET_VAR(%(blockname)s.,%(input_name)s, %(input_value)s);"
-    BLOCK_OUTPUT_TEMPLATE = "    __SET_VAR(data__->,%(output_name)s, __GET_VAR(%(blockname)s.%(output_name)s));"
+    BLOCK_INPUT_TEMPLATE = "    __SET_VAR(%(blockname)s->,%(input_name)s, %(input_value)s);"
+    BLOCK_OUTPUT_TEMPLATE = "    __SET_VAR(data__->,%(output_name)s, __GET_VAR(%(blockname)s->%(output_name)s));"
     
     BLOCK_FUNCTION_TEMPLATE = """
 extern void ETHERLAB%(ucase_blocktype)s_body__(ETHERLAB%(ucase_blocktype)s* data__);
 void __%(blocktype)s_%(location)s(MC_%(ucase_blocktype)s *data__) {
-    extern ETHERLAB%(ucase_blocktype)s %(blockname)s;
+    __DECLARE_GLOBAL_PROTOTYPE(ETHERLAB%(ucase_blocktype)s, %(blockname)s);
+    ETHERLAB%(ucase_blocktype)s* %(blockname)s = __GET_GLOBAL_%(blockname)s();
 %(extract_inputs)s
-    ETHERLAB%(ucase_blocktype)s_body__(&%(blockname)s);
+    ETHERLAB%(ucase_blocktype)s_body__(%(blockname)s);
 %(return_outputs)s
 }
 """
     
-    BLOCK_FUNTION_DEFINITION_TEMPLATE = "    __CIA402Node_%(location)s.axis->__mcl_func_MC_%(blocktype)s = &(__%(blocktype)s_%(location)s);"
+    BLOCK_FUNTION_DEFINITION_TEMPLATE = """    if (!__CIA402Node_%(location)s.axis->__mcl_func_MC_%(blocktype)s)
+    __CIA402Node_%(location)s.axis->__mcl_func_MC_%(blocktype)s = __%(blocktype)s_%(location)s;"""
     
     GLOBAL_INSTANCES = [
         {"blocktype": "GetTorqueLimit", 

--- a/etherlab/plc_cia402node.c	Fri Nov 16 00:23:35 2012 +0100
+++ b/etherlab/plc_cia402node.c	Fri Nov 16 23:43:45 2012 +0100
@@ -11,6 +11,7 @@
   #include "iec_std_lib.h"
 #endif
 
+#include "accessor.h"
 #include "POUS.h"
 
 IEC_INT beremiz__IW%(location)s_0;
@@ -57,7 +58,6 @@
 %(init_entry_variables)s
 	*__IW%(location)s_0 = __MK_Alloc_AXIS_REF();
 	__CIA402Node_%(location)s.axis = __MK_GetPublic_AXIS_REF(*__IW%(location)s_0);
-%(fieldbus_interface_definition)s
 	__MK_Set_AXIS_REF_Pos(*__IW%(location)s_0, %(slave_pos)d);
 	*(__CIA402Node_%(location)s.ModesOfOperation) = 0x08;
     return 0;
@@ -69,6 +69,8 @@
 
 void __retrieve_%(location)s()
 {
+%(fieldbus_interface_definition)s
+
 	IEC_UINT statusword_inactive = *(__CIA402Node_%(location)s.StatusWord) & __InactiveMask;
 	IEC_UINT statusword_active = *(__CIA402Node_%(location)s.StatusWord) & __ActiveMask;
 

--- a/etherlab/pous.xml	Fri Nov 16 00:23:35 2012 +0100
+++ b/etherlab/pous.xml	Fri Nov 16 23:43:45 2012 +0100
@@ -516,7 +516,7 @@
               <connectionPointOut>
                 <relPosition x="68" y="13"/>
               </connectionPointOut>
-              <expression>16#60E0</expression>
+              <expression>16#60E1</expression>
             </inVariable>
             <inVariable localId="8" height="27" width="33">
               <position x="390" y="203"/>
@@ -1025,7 +1025,7 @@
               <connectionPointOut>
                 <relPosition x="68" y="13"/>
               </connectionPointOut>
-              <expression>16#60E0</expression>
+              <expression>16#60E1</expression>
             </inVariable>
             <inVariable localId="8" height="27" width="33">
               <position x="186" y="203"/>