Standard IEC functions declaration now made from iec_std.csv file for easier maintainance.
authoretisserant
Tue, 05 Jun 2007 14:32:01 +0200
changeset 14 cd0133ed377b
parent 13 69075340d6a9
child 15 fc897b7bfa7b
Standard IEC functions declaration now made from iec_std.csv file for easier maintainance.
plcopen/iec_std.csv
plcopen/structures.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plcopen/iec_std.csv	Tue Jun 05 14:32:01 2007 +0200
@@ -0,0 +1,84 @@
+Standard_functions_variables_types;name;comment;type;;;;
+;N;Number of bits to be shifted;UINT;;;;
+;L;Left position within character string;UINT;;;;
+;P;Position within character string;UINT;;;;
+;G;Selection out of 2 inputs (gate);BOOL;;;;
+;K;Selection out of n inputs;ANY_INT;;;;
+;MN;Minimum value for limitation;ANY;;;;
+;MX;Maximum value for limitation;ANY;;;;
+;;;;;;;
+;;;;;;;
+;;;;;;;
+;;;;;;;
+;;;;;;;
+;;;;;;;
+Standard_functions_type;name;baseinputnumber;inputs;outputs;comment;overloaded;extensible
+Type conversion;*_TO_**;1;(ANY);ANY;Data type conversion;yes;no
+;TRUNC;1;(ANY_REAL);ANY_INT;Rounding up/down;yes;no
+;BCD_TO_**;1;(ANY_BIT);ANY;Conversion from BCD;yes;no
+;*_TO_BCD;1;(ANY_INT);ANY_BIT;Conversion to BCD;yes;no
+;DATE_AND_TIME_TO_TIME_OF_DAY;1;(DT);TOD;Conversion to time-of-day;no;no
+;DATE_AND_TIME_TO_DATE;1;(DT);DATE;Conversion to date;no;no
+Numerical;ABS;1;(ANY_NUM);ANY_NUM;Absolute number;yes;no
+;SQRT;1;(ANY_REAL);ANY_REAL;Square root (base 2);yes;no
+;LN;1;(ANY_REAL);ANY_REAL;Natural logarithm;yes;no
+;LOG;1;(ANY_REAL);ANY_REAL;Logarithm to base 10;yes;no
+;EXP;1;(ANY_REAL);ANY_REAL;Exponentiation;yes;no
+;SIN;1;(ANY_REAL);ANY_REAL;Sine;yes;no
+;COS;1;(ANY_REAL);ANY_REAL;Cosine;yes;no
+;TAN;1;(ANY_REAL);ANY_REAL;Tangent;yes;no
+;ASIN;1;(ANY_REAL);ANY_REAL;Arc sine;yes;no
+;ACOS;1;(ANY_REAL);ANY_REAL;Arc cosine;yes;no
+;ATAN;1;(ANY_REAL);ANY_REAL;Arc tangent;yes;no
+Arithmetic;ADD;1;(ANY_NUM, ANY_NUM);ANY_NUM;Addition;yes;yes
+;ADD;1;(TIME, TIME);TIME;Time addition;yes;no
+;ADD;1;(TOD, TIME);TOD;Time-of-day addition;yes;no
+;ADD;1;(DT, TIME);DT;Date addition;yes;no
+;MUL;1;(ANY_NUM, ANY_NUM);ANY_NUM;Multiplication;yes;yes
+;MUL;1;(TIME, ANY_NUM);TIME;Time multiplication;yes;no
+;SUB;1;(ANY_NUM, ANY_NUM);ANY_NUM;Subtraction;yes;no
+;SUB;1;(TIME, TIME);TIME;Time subtraction;yes;no
+;SUB;1;(DATE, DATE);TIME;Date subtraction;yes;no
+;SUB;1;(TOD, TIME);TOD;Time-of-day subtraction;yes;no
+;SUB;1;(TOD, TOD);TIME;Time-of-day subtraction;yes;no
+;SUB;1;(DT, TIME);DT;Date and time subtraction;yes;no
+;SUB;1;(DT, DT);TIME;Date and time subtraction;yes;no
+;DIV;1;(ANY_NUM, ANY_NUM);ANY_NUM;Division;yes;no
+;DIV;1;(TIME, ANY_NUM);TIME;Time division;yes;no
+;MOD;1;(ANY_NUM, ANY_NUM);ANY_NUM;Remainder (modulo);yes;no
+;EXPT;1;(ANY_NUM, ANY_NUM);ANY_NUM;Exponent;yes;no
+;MOVE;1;(ANY_NUM, ANY_NUM);ANY_NUM;Assignment;yes;no
+Bit-shift;SHL;1;(ANY_BIT, N);ANY_BIT;Shift left;yes;no
+;SHR;1;(ANY_BIT, N);ANY_BIT;Shift right;yes;no
+;ROR;1;(ANY_BIT, N);ANY_BIT;Rotate right;yes;no
+;ROL;1;(ANY_BIT, N);ANY_BIT;Rotate left;yes;no
+Bitwise;AND;1;(ANY_BIT, ANY_BIT);ANY_BIT;Bitwise AND;yes;yes
+;OR;1;(ANY_BIT, ANY_BIT);ANY_BIT;Bitwise OR;yes;yes
+;XOR;1;(ANY_BIT, ANY_BIT);ANY_BIT;Bitwise EXOR;yes;yes
+;NOT;1;(ANY_BIT, ANY_BIT);ANY_BIT;Bitwise inverting;yes;no
+Selection;SEL;0;(G, ANY, ANY);ANY;Binary selection (1 of 2);yes;no
+;SEL;0;(G, ENUM, ENUM);ENUM;Binary selection (1 of 2);no;no
+;MAX;1;(ANY, ANY);ANY;Maximum;yes;yes
+;MIN;1;(ANY, ANY);ANY;Minimum;yes;yes
+;LIMIT;1;(MN, ANY, MX);ANY;Limitation;yes;no
+;MUX;0;(K, ANY, ANY);ANY;Multiplexer (select 1 of N);yes;yes
+;MUX;0;(K, ENUM, ENUM);ENUM;Multiplexer (select 1 of N);no;no
+Comparison;GT;1;(ANY, ANY);BOOL;Greater than;yes;yes
+;GE;1;(ANY, ANY);BOOL;Greater than or equal to;yes;yes
+;EQ;1;(ANY, ANY);BOOL;Equal to;yes;yes
+;EQ;1;(ENUM, ENUM);BOOL;Equal to;no;no
+;LT;1;(ANY, ANY);BOOL;Less than;yes;yes
+;LE;1;(ANY, ANY);BOOL;Less than or equal to;yes;yes
+;NE;1;(ANY, ANY);BOOL;Not equal to;yes;no
+;NE;1;(ENUM, ENUM);BOOL;Not equal to;no;no
+Character string;LEN;1;(STRING);INT;Length of string;no;no
+;LEFT;1;(STRING, L);STRING;string left of;yes;no
+;RIGHT;1;(STRING, L);STRING;string right of;yes;no
+;MID;1;(STRING, L, P);STRING;string from the middle;yes;no
+;CONCAT;1;(STRING, STRING);STRING;Concatenation;no;yes
+;CONCAT;1;(DATE, TOD);DT;Time concatenation;no;no
+;INSERT;1;(STRING, STRING, P);STRING;Insertion (into);yes;no
+;DELETE;1;(STRING, L, P);STRING;Deletion (within);yes;no
+;REPLACE;1;(STRING, STRING, L, P);STRING;Replacement (within);yes;no
+;FIND;1;(STRING, STRING);INT;Find position;yes;no
+;;;;;;;
--- a/plcopen/structures.py	Wed Apr 18 16:39:28 2007 +0200
+++ b/plcopen/structures.py	Tue Jun 05 14:32:01 2007 +0200
@@ -1,6 +1,8 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+import string, os, sys
+
 #This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
 #based on the plcopen standard. 
 #
@@ -44,197 +46,7 @@
     - The default modifier which can be "none", "negated", "rising" or "falling"
 """
 
-BlockTypes = [{"name" : "Numerical functions", "list":
-               [{"name" : "ADD", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY_NUM","none"),("IN2","ANY_NUM","none")], 
-                    "outputs" : [("OUT","ANY_NUM","none")],
-                    "comment" : "Addition,\nresult := I1 + I2 + ..."},
-                {"name" : "MUL", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY_NUM","none"),("IN2","ANY_NUM","none")], 
-                    "outputs" : [("OUT","ANY_NUM","none")],
-                    "comment" : "Multiplication,\nresult := I1 * I2 * ..."},
-                {"name" : "SUB", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","ANY_NUM","none"),("IN2","ANY_NUM","none")], 
-                    "outputs" : [("OUT","ANY_NUM","none")],
-                    "comment" : "Substration,\nresult := I1 - I2"},
-                {"name" : "DIV", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","ANY_NUM","none"),("IN2","ANY_NUM","none")], 
-                    "outputs" : [("OUT","ANY_NUM","none")],
-                    "comment" : "Division,\nresult := I1 / I2\n(with integer division, any fractional remainder is truncated)"},
-                {"name" : "MOD", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","ANY_INT","none"),("IN2","ANY_INT","none")], 
-                    "outputs" : [("OUT","ANY_INT","none")],
-                    "comment" : "Modulus,\nresult := I1 MOD I2\n(only valid with integer values)"},
-                {"name" : "EXPT", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","ANY_REAL","none"),("IN2","ANY_INT","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Exponential,\nresult := I1 ^ I2\n(can only take integer exponents)"},
-                {"name" : "ABS", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_NUM","none")], 
-                    "outputs" : [("OUT","ANY_NUM","none")],
-                    "comment" : "Absolute value (negative values become positive)"},
-                {"name" : "SQRT", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Square root"},
-                {"name" : "LOG", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Logarithm"},
-                {"name" : "LN", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Natural logarithm"},
-                {"name" : "EXP", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Natural exponential"},
-                {"name" : "SIN", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Sine of input as radians"},
-                {"name" : "COS", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Cosine of input as radians"},
-                {"name" : "TAN", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Tangent of input as radians"},
-                {"name" : "ASIN", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Principal arc-sine, result in radians"},
-                {"name" : "ACOS", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Principal arc-cosine, result in radians"},
-                {"name" : "ATAN", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_REAL","none")], 
-                    "outputs" : [("OUT","ANY_REAL","none")],
-                    "comment" : "Principal arc-tangent, result in radians"}
-               ]},
-              {"name" : "Boolean and bit functions", "list":
-               [{"name" : "AND", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY_BIT","none"),("IN2","ANY_BIT","none")], 
-                    "outputs" : [("OUT","ANY_BIT","none")],
-                    "comment" : "Result := I1 & I2 & ..."},
-                {"name" : "OR", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY_BIT","none"),("IN2","ANY_BIT","none")], 
-                    "outputs" : [("OUT","ANY_BIT","none")],
-                    "comment" : "Result := I1 OR I2 OR ..."},
-                {"name" : "XOR", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY_BIT","none"),("IN2","ANY_BIT","none")], 
-                    "outputs" : [("OUT","ANY_BIT","none")],
-                    "comment" : "Result := I1 XOR I2 XOR ..."},
-                {"name" : "NOT", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","BIT","none")], 
-                    "outputs" : [("OUT","BIT","none")],
-                    "comment" : "Result := NOT I1"},
-                {"name" : "SHL", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_BIT","none"),("N","ANY_INT","none")], 
-                    "outputs" : [("OUT","ANY_BIT","none")],
-                    "comment" : "Shift bit-string n bit positions left, zero fill on the right."},
-                {"name" : "SHR", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_BIT","none"),("N","ANY_INT","none")], 
-                    "outputs" : [("OUT","ANY_BIT")],
-                    "comment" : "Shift bit-string right n bit positions, zero fill on the left."},
-                {"name" : "ROR", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_BIT","none"),("N","ANY_INT","none")], 
-                    "outputs" : [("OUT","ANY_BIT","none")],
-                    "comment" : "Shift bit-string right, rotate by n bit positions."},
-                {"name" : "ROL", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY_BIT","none"),("N","ANY_INT","none")], 
-                    "outputs" : [("OUT","ANY_BIT","none")],
-                    "comment" : "Shift bit-string left, rotate by n bit positions."}
-               ]},
-              {"name" : "Selection functions", "list":
-               [{"name" : "SEL", "type" : "function", "extensible" : False, 
-                    "inputs" : [("G","BOOL","none"),("IN0","ANY","none"),("IN1","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Selection\nIf G = TRUE then\nResult := IN1 else\nResult := IN2"},
-                {"name" : "MAX", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Maximum\nResult := maximum value of all inputs"},
-                {"name" : "MIN", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("","ANY","none")],
-                    "comment" : "Minimum\nResult := minimum value of all inputs"},
-                {"name" : "LIMIT", "type" : "function", "extensible" : False, 
-                    "inputs" : [("MN","ANY","none"),("IN","ANY","none"),("MX","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Limit\nResult is the value of IN limited between a minimum value of MN and a maximum value of MX."},
-                {"name" : "MUX", "type" : "function", "extensible" : True, 
-                    "inputs" : [("K","ANY_INT","none"),("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Multiplexer\nResult is the value of the input selected by the value of K."}
-               ]},
-              {"name" : "Comparison functions", "list":
-               [{"name" : "GT", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Greater than\nResult := IN1 > IN2"},
-                {"name" : "GE", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Greater than or equal\nResult := IN1 >= IN2"},
-                {"name" : "EQ", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Equality\nResult := IN1 = IN2"},
-                {"name" : "LE", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Lesser than or equal\nResult := IN1 <= IN2"},
-                {"name" : "LT", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Lesser than\nResult := IN1 < IN2"},
-                {"name" : "NE", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","ANY","none"),("IN2","ANY","none")], 
-                    "outputs" : [("OUT","ANY","none")],
-                    "comment" : "Not equal\nResult := IN1 <> IN2"}
-               ]},
-              {"name" : "Character string functions", "list":
-               [{"name" : "LEFT", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","STRING","none"),("L","ANY_INT","none")], 
-                    "outputs" : [("OUT","STRING","none")],
-                    "comment" : "Extract left string\nResult is the string formed from L characters from the leftmost character of string IN."},
-                {"name" : "RIGHT", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","STRING","none"),("L","ANY_INT","none")], 
-                    "outputs" : [("OUT","STRING","none")],
-                    "comment" : "Extract right string\nResult is the string formed from L characters from the rightmost part of string IN."},
-                {"name" : "MID", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","ANY","none"),("L","ANY_INT","none"),("P","ANY_INT","none")], 
-                    "outputs" : [("OUT","STRING","none")],
-                    "comment" : "Extract mid string\nResult is a string extracted from the input string IN starting at character position P, and L characters long."},
-                {"name" : "CONCAT", "type" : "function", "extensible" : True, 
-                    "inputs" : [("IN1","STRING","none"),("IN2","STRING","none")], 
-                    "outputs" : [("OUT","STRING","none")],
-                    "comment" : "Concatenate strings\nResult is a string formed by joining the input strings together. This is an extensible function that can take two or more input strings."},
-                {"name" : "INSERT", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","STRING","none"),("IN2","STRING","none"),("P","ANY_INT","none")], 
-                    "outputs" : [("OUT","STRING","none")],
-                    "comment" : "Insert string\nThe result is formed by the string IN2 being inserted into string IN1, P character positions from the start of IN1."},
-                {"name" : "DELETE", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","STRING","none"),("L","ANY_INT","none"),("P","ANY_INT","none")], 
-                    "outputs" : [("OUT","STRING","none")],
-                    "comment" : "Delete string\nThe result is formed by a string of characters L in length, being deleted from the input string IN, starting from character position P."},
-                {"name" : "REPLACE", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","STRING","none"),("IN2","STRING","none"),("L","ANY_INT","none"),("P","ANY_INT","none")], 
-                    "outputs" : [("OUT","STRING","none")],
-                    "comment" : "Replace string\nThe result is formed by replacing L characters in string IN1, starting at position P, with character string in IN2."},
-                {"name" : "LEN", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN","STRING","none")], 
-                    "outputs" : [("OUT","INT","none")],
-                    "comment" : "Length\nResult is length of the input string."},
-                {"name" : "FIND", "type" : "function", "extensible" : False, 
-                    "inputs" : [("IN1","STRING","none"),("IN2","STRING","none")], 
-                    "outputs" : [("OUT","INT","none")],
-                    "comment" : "Find string\nResult is the position where string IN2 is first found in string IN1.\nIf string IN2 is not found in IN1, the result is 0."},
-               ]},
-              {"name" : "Standard function blocks", "list":
+BlockTypes = [{"name" : "Standard function blocks", "list":
                [{"name" : "SR", "type" : "functionBlock", "extensible" : False, 
                     "inputs" : [("S1","BOOL","none"),("R","BOOL","none")], 
                     "outputs" : [("Q1","BOOL","none")],
@@ -377,7 +189,124 @@
         test = TypeHierarchy[test]
     return False
 
-
+def GetSubTypes(reference):
+    return [ typename for typename in TypeHierarchy.iterkeys() if typename[:3] != "ANY" and IsOfType(typename, reference)]
+
+
+
+
+            
+def csv_file_to_table(file):
+	return [ map(string.strip,line.split(';')) for line in file.xreadlines()]
+
+def find_section(section_name, table):
+	fields = [None]
+	while(fields[0] != section_name):
+		fields = table.pop(0)
+	return fields[1:]
+
+
+def get_standard_funtions_input_variables(table):
+	variables = find_section("Standard_functions_variables_types", table)
+	standard_funtions_input_variables = {}
+	fields = [True,True]
+	while(fields[1]):
+		fields = table.pop(0)
+		variable_from_csv = dict([(champ, val) for champ, val in zip(variables, fields[1:])])
+		standard_funtions_input_variables[variable_from_csv['name']] = variable_from_csv['type']
+	return standard_funtions_input_variables
+	
+#"(ANY_NUM, ANY_NUM)" ---> [("IN1","ANY_NUM","none"),("IN2","ANY_NUM","none")] 
+def csv_input_translate(str_decl, variables, base):
+	decl = str_decl.replace('(','').replace(')','').replace(' ','').split(',')
+	param_types = []
+	param_names = []
+	modifiers = []
+	if len(decl)>1 : suffix = str(base)
+	else: suffix = ''
+	
+	for param_type in decl:
+		predifined_variable_param_type = variables.get(param_type,None)
+		if predifined_variable_param_type :
+			param_types.append(predifined_variable_param_type)
+			param_names.append(param_type)
+		else:
+			param_types.append(param_type)
+			param_names.append("IN"+suffix)
+			base+=1
+			suffix = str(base)
+
+	modifiers = ["none"]*len(param_types)
+	return zip(param_names,param_types,modifiers)
+
+def decl_function(dico_from_table, variables):
+	Function_decl = { "type" : "function" }
+	for field, val in dico_from_table:
+		translate = {
+			"baseinputnumber" : lambda x:int(x),
+			"extensible" : lambda x: {"yes":True, "no":False}[x],
+			"inputs" : lambda x:csv_input_translate(x,variables,Function_decl.get("baseinputnumber",1)),
+			"outputs":lambda x:[("OUT",x,"none")]}
+		Function_decl[field] = translate.get(field,lambda x:x)(val)
+	#Function_decl.pop("baseinputnumber")
+	Function_decl.pop("overloaded")
+	return Function_decl
+
+
+def get_standard_funtions(table):
+	
+	variables = get_standard_funtions_input_variables(table)
+	
+	fonctions = find_section("Standard_functions_type",table)
+
+	Standard_Functions_Decl = []
+	Current_section = None
+	for fields in table:
+		if fields[1]:
+			# If function section name given
+			if fields[0] :
+				if Current_section: 
+					Standard_Functions_Decl.append(Current_section)
+				Current_section = { "name" : fields[0], "list" : [] }
+				Function_decl_list = []
+		
+			dico_from_table = zip(fonctions, fields[1:])
+			Function_decl = decl_function(dico_from_table,variables)
+			
+			if Function_decl["name"].startswith("*"):
+				input_types = GetSubTypes(Function_decl["inputs"][0][1])
+			else:
+				input_types = [None]
+			if Function_decl["name"].endswith("**"):
+				output_types = GetSubTypes(Function_decl["outputs"][0][1])
+			else:
+				output_types = [None]
+				
+			funcdecl = Function_decl["name"]
+			for intype in input_types:
+				if intype != None:
+					decl_tpl = Function_decl["inputs"][0]
+					Function_decl["inputs"] = [decl_tpl[:1] + (intype,) + decl_tpl[2:]] + Function_decl["inputs"][1:]
+					funcdeclin = funcdecl.replace("*_", intype + '_')
+					Function_decl["name"] = funcdeclin
+
+				for outype in output_types:
+					if outype != None:
+						decl_tpl = Function_decl["outputs"][0]
+						Function_decl["outputs"] = [decl_tpl[:1] + (outype,) + decl_tpl[2:]] + Function_decl["outputs"][1:]
+						funcdeclout = funcdeclin.replace("_**", '_' + outype)
+						Function_decl["name"] = funcdeclout
+					Current_section["list"].append(Function_decl.copy())
+	
+	return Standard_Functions_Decl
+
+
+to_append=get_standard_funtions(csv_file_to_table(open(os.path.join(sys.path[0], "plcopen/iec_std.csv"))))
+import pprint
+pp = pprint.PrettyPrinter(indent=4)
+pp.pprint(to_append)
+BlockTypes.extend(to_append)
+pp.pprint(BlockTypes)
 #-------------------------------------------------------------------------------
 #                             Test identifier
 #-------------------------------------------------------------------------------