diff -r 72ae82e65dbc -r eef5e62048c7 stage4/generate_iec/generate_iec.cc
--- a/stage4/generate_iec/generate_iec.cc	Thu Sep 25 10:26:10 2008 +0200
+++ b/stage4/generate_iec/generate_iec.cc	Fri Sep 26 14:42:05 2008 +0200
@@ -606,6 +606,10 @@
   return NULL;
 }
 
+void *visit(en_param_declaration_c *symbol) {
+  s4o.print("EN : BOOL := 1");
+  return NULL;
+}
 
 void *visit(raising_edge_option_c *symbol) {
   s4o.print("R_EDGE");
@@ -681,6 +685,11 @@
   return NULL;
 }
 
+void *visit(eno_param_declaration_c *symbol) {
+  s4o.print("EN0 : BOOL");
+  return NULL;
+}
+
 /*  VAR_IN_OUT  END_VAR */
 void *visit(input_output_declarations_c *symbol) {
   s4o.print(s4o.indent_spaces); s4o.print("VAR_IN_OUT ");