diff --git a/pydbc/cgen/templates/dbc.tmpl b/pydbc/cgen/templates/dbc.tmpl
index faeedec..4960134 100644
--- a/pydbc/cgen/templates/dbc.tmpl
+++ b/pydbc/cgen/templates/dbc.tmpl
@@ -167,6 +167,42 @@ ${int(attr['Num_Value'])}\
 %endif
 ;
 %endfor
+%for attr in db.relativeAttributeValues():
+<% attrDef = list(db.attributeDefintion(attr['Attribute_Definition']))[0] %>\
+BA_REL_ "${attrDef['Name']}" \
+%if attrDef['Objecttype'] == 5:
+BU_BO_REL_ \
+%elif attrDef['Objecttype'] == 6:
+BU_SG_REL_ \
+%elif attrDef['Objecttype'] == 7:
+BU_EV_REL_ \
+%endif
+${db.fetchNodenameByRid(attr['Opt_Object_ID_1'])} \
+%if attrDef['Objecttype'] == 6:
+SG_ \
+%endif
+%if attrDef['Objecttype'] in (5, 6):
+${attr['Opt_Object_ID_2']} \
+%endif
+%if attrDef['Objecttype'] == 6:
+<% signal = db.fetchSignalByRid(attr['Object_ID']) %>\
+${signal['Name']} \
+%elif attrDef['Objecttype'] == 7:
+${db.fetchEnvvarNameByRid(attr['Object_ID'])} \
+%endif
+%if attrDef['Valuetype'] == 0:
+${int(attr['Num_Value'])}\
+%elif attrDef['Valuetype'] == 1:
+${int(attr['Num_Value'])}\
+%elif attrDef['Valuetype'] == 2:
+${"{:.14G}".format(attr['Num_Value'])}\
+%elif attrDef['Valuetype'] == 3:
+"${attr['String_Value']}"\
+%elif attrDef['Valuetype'] == 4:
+${int(attr['Num_Value'])}\
+%endif
+;
+%endfor
 %for vt in db.valueTablesLocal():
 VAL_ \
 %if vt['Object_Type'] == 0:
diff --git a/pydbc/db/common.py b/pydbc/db/common.py
index eb73943..a33daa1 100644
--- a/pydbc/db/common.py
+++ b/pydbc/db/common.py
@@ -4,7 +4,7 @@
 __copyright__ = """
    pySART - Simplified AUTOSAR-Toolkit for Python.
 
-   (C) 2010-2018 by Christoph Schueler <cpu12.gems.googlemail.com>
+   (C) 2010-2019 by Christoph Schueler <cpu12.gems.googlemail.com>
 
    All Rights Reserved
 
@@ -204,6 +204,10 @@ def attributeValues(self):
         cur = self.getCursor()
         yield from self.db.fetchFromTable(cur, "Attribute_Value")
 
+    def relativeAttributeValues(self):
+        cur = self.getCursor()
+        yield from self.db.fetchFromTable(cur, "AttributeRel_Value")
+
     def environmentVariables(self):
         cur = self.getCursor()
         yield from self.db.fetchFromTable(cur, "EnvVar")
@@ -256,9 +260,10 @@ def multipleTransmitters(self):
         rows = cur.fetchall()
         if rows:
             messages = {r[0]:r[1] for r in rows}
+            key ="({})".format(','.join([str(k) for k in messages.keys()]))
             stmt = """SELECT node, message, name FROM Node_TxMessage AS t1, Node AS t2 WHERE t1.Node = t2.rid
                 AND message IN {};
-            """.format(tuple(messages.keys()))
+            """.format(key)
             cur.execute(stmt)
             items = cur.fetchall()
             for kr, item in itertools.groupby(items, lambda n: n[1]):