diff --git a/SCL-Export/README.md b/SCL-Export/README.md
index 61044cb..3e3d81a 100644
--- a/SCL-Export/README.md
+++ b/SCL-Export/README.md
@@ -85,7 +85,20 @@ ersetzen (Aufrufer und Instanz-DBs bleiben gültig, neu übersetzen genügt).
 
 ## Werkzeug
 
-`tools/stlxml2awl.py` wandelt die SimaticML-XML-Exporte (`StatementList`) in
-lesbaren AWL-Text um (`python stlxml2awl.py <baustein.xml>`), inkl. Interface,
-Netzwerktitel, Sprungmarken und Kommentaren — Grundlage für die
-Massenkonvertierung der restlichen ~230 Bausteine.
+`lib/stlxml2awl.py` (Projektwurzel) wandelt die SimaticML-XML-Exporte
+(`StatementList`) in lesbaren AWL-Text um, inkl. Interface, Netzwerktitel,
+Sprungmarken und Kommentaren — Grundlage für die Massenkonvertierung der
+restlichen ~230 Bausteine. Aufruf über `bin/xmls2awl.bat`:
+
+```
+bin\xmls2awl.bat <baustein.xml> [<baustein2.xml> ...]   REM einzelne Dateien
+bin\xmls2awl.bat --dir <verzeichnis>                     REM rekursiv alle .xml -> .awl
+```
+
+Je `.xml` wird die `.awl` daneben abgelegt. Nicht-Baustein-Exporte (UDTs,
+Tag-Tabellen) werden übersprungen. Zusätzlich schätzt das Skript pro Baustein
+anhand von Sprung-/Label-Anzahl, registerindirekten Zugriffen und bekannten
+Namensmustern eine der drei Aufwandskategorien (A/B/C, siehe oben) und
+schreibt ein Log (`log/stlxml2awl_<Zeitstempel>.log`, mit `--log <pfad>`
+überschreibbar) mit allen Bausteinen der Kategorien B/C sowie Fehlern — das
+ist die Priorisierungsliste für die manuelle Nacharbeit.
diff --git a/SCL-Export/tools/stlxml2awl.py b/SCL-Export/tools/stlxml2awl.py
deleted file mode 100644
index 66520b5..0000000
--- a/SCL-Export/tools/stlxml2awl.py
+++ /dev/null
@@ -1,249 +0,0 @@
-#!/usr/bin/env python3
-"""Wandelt TIA-Openness SimaticML XML (StatementList) in lesbaren AWL-Text um."""
-import re
-import sys
-import xml.etree.ElementTree as ET
-
-NS_IF = "{http://www.siemens.com/automation/Openness/SW/Interface/v5}"
-NS_SL = "{http://www.siemens.com/automation/Openness/SW/NetworkSource/StatementList/v5}"
-
-TOKEN_MAP = {
-    "A_BRACK": "A(", "O_BRACK": "O(", "AN_BRACK": "AN(", "ON_BRACK": "ON(",
-    "X_BRACK": "X(", "XN_BRACK": "XN(", "BRACKET": ")",
-    "NE_I": "<>I", "EQ_I": "==I", "GT_I": ">I", "LT_I": "<I", "GE_I": ">=I", "LE_I": "<=I",
-    "NE_D": "<>D", "EQ_D": "==D", "GT_D": ">D", "LT_D": "<D", "GE_D": ">=D", "LE_D": "<=D",
-    "NE_R": "<>R", "EQ_R": "==R", "GT_R": ">R", "LT_R": "<R", "GE_R": ">=R", "LE_R": "<=R",
-    "ADD_I": "+I", "SUB_I": "-I", "MUL_I": "*I", "DIV_I": "/I",
-    "ADD_D": "+D", "SUB_D": "-D", "MUL_D": "*D", "DIV_D": "/D",
-    "ADD_R": "+R", "SUB_R": "-R", "MUL_R": "*R", "DIV_R": "/R",
-    "ADD": "+", "NOP_0": "NOP 0", "NOP_1": "NOP 1",
-    "TAR2_ACCU1": "TAR2", "TAR1_ACCU1": "TAR1",
-    "LAR1_ACCU1": "LAR1", "LAR2_ACCU1": "LAR2",
-    "OPEN_DB": "OPN", "OPEN_DI": "OPN",
-    "EMPTY_LINE": "", "COMMENT": "//", "Assign": "=",
-}
-
-
-def fmt_symbol(access):
-    parts = []
-    for comp in access.findall(f"./{NS_SL}Symbol/{NS_SL}Component"):
-        name = comp.get("Name")
-        token = name if re.fullmatch(r"[A-Za-z_][A-Za-z0-9_]*", name) else f'"{name}"'
-        idx = [fmt_access(a) for a in comp.findall(f"{NS_SL}Access")]
-        if idx:
-            token += "[" + ",".join(idx) + "]"
-        if comp.get("SliceAccessModifier"):
-            token += "." + comp.get("SliceAccessModifier")
-        parts.append(token)
-    sym = ".".join(parts)
-    if access.get("Scope") == "GlobalVariable" and parts and not parts[0].startswith('"'):
-        sym = f'"{parts[0][1:-1] if parts[0].startswith(chr(34)) else parts[0]}"' + (
-            "." + ".".join(parts[1:]) if len(parts) > 1 else "")
-    return sym
-
-
-def fmt_address(addr):
-    area = addr.get("Area")
-    typ = addr.get("Type")
-    bit = int(addr.get("BitOffset", 0))
-    blk = addr.get("BlockNumber")
-    width = {"Bool": 1, "Byte": 8, "Word": 16, "DWord": 32, "Int": 16, "DInt": 32}.get(typ, 0)
-    sizech = {1: "", 8: "B", 16: "W", 32: "D"}.get(width, "?")
-    areach = {"Local": "L", "Memory": "M", "Input": "I", "Output": "Q", "DB": "DB", "DI": "DI",
-              "Timer": "T", "Counter": "C", "PeripheryInput": "PI", "PeripheryOutput": "PQ"}.get(area, area)
-    if area in ("DB", "DI"):
-        pre = f"DB{blk}." if blk else ""
-        core = f"{pre}{'DBX' if width == 1 else 'DB' + sizech}{bit // 8}"
-    elif area == "Timer":
-        return f"T {bit}"
-    elif area == "Counter":
-        return f"C {bit}"
-    else:
-        core = f"{areach}{sizech}{bit // 8}"
-    if width == 1:
-        core += f".{bit % 8}"
-    return core
-
-
-def fmt_indirect(ind):
-    width = ind.get("Width")
-    area = ind.get("Area")
-    reg = ind.get("Register", "")
-    inner = [fmt_access(a) for a in ind.findall(f"{NS_SL}Access")]
-    const = ind.find(f"{NS_SL}Constant")
-    off = ""
-    if const is not None:
-        off = const.findtext(f"{NS_SL}ConstantValue", "")
-    if width == "Block":  # OPN DB[var]
-        return f"DB[{inner[0]}]" if inner else f"DB[{off}]"
-    sizech = {"Bit": "X", "Byte": "B", "Word": "W", "Double": "D", "DWord": "D"}.get(width, "?")
-    areach = {"DB": "DB", "DI": "DI", "Local": "L", "Memory": "M", "Input": "I", "Output": "Q"}.get(area, area or "")
-    base = f"{areach}{sizech}" if areach not in ("DB", "DI") else f"{areach}{sizech}"
-    if reg:  # registerindirekt
-        return f"{base} [{reg},{off}]"
-    if inner:  # speicherindirekt
-        return f"{base} [{inner[0]}]"
-    return f"{base} [{off}]"
-
-
-def fmt_access(access):
-    scope = access.get("Scope")
-    if scope in ("LocalVariable", "GlobalVariable", "LocalConstant", "GlobalConstant"):
-        return fmt_symbol(access)
-    if scope in ("LiteralConstant", "TypedConstant"):
-        c = access.find(f"{NS_SL}Constant")
-        val = c.findtext(f"{NS_SL}ConstantValue", "") if c is not None else ""
-        typ = c.findtext(f"{NS_SL}ConstantType", "") if c is not None else ""
-        pref = {"Word": "W#16#", "DWord": "DW#16#", "Time": "", "S5Time": "", "Byte": "B#16#"}
-        if typ in ("Word", "DWord", "Byte") and not val.startswith(("2#", "16#", "W#", "DW#", "B#")):
-            return pref[typ] + val
-        return val
-    if scope == "AddressConstant":
-        c = access.find(f"{NS_SL}Constant")
-        return "P#" + c.findtext(f"{NS_SL}ConstantValue", "") if c is not None else "P#?"
-    if scope == "Address":
-        addr = access.find(f"{NS_SL}Address")
-        if addr is not None:
-            return fmt_address(addr)
-        ind = access.find(f"{NS_SL}Indirect")
-        if ind is not None:
-            return fmt_indirect(ind)
-        return "?ADDR?"
-    if scope == "Label":
-        lab = access.find(f"{NS_SL}Label")
-        return lab.get("Name") if lab is not None else "?LBL?"
-    if scope == "LabelDefinition":
-        lab = access.find(f"{NS_SL}Label")
-        return (lab.get("Name") + ":") if lab is not None else "?LBL?:"
-    if scope == "Statusword":
-        return access.find(f"{NS_SL}Statusword").get("Name", "?SW?")
-    if scope == "Call":
-        ci = access.find(f"{NS_SL}CallInfo")
-        if ci is None:
-            ins = access.find(f"{NS_SL}Instruction")
-            name = ins.get("Name")
-            params = []
-            for p in ins.findall(f"{NS_SL}Parameter"):
-                pa = p.find(f"{NS_SL}Access")
-                params.append(f"{p.get('Name')}:={fmt_access(pa) if pa is not None else '?'}")
-            return f"CALLINFO SYS \"{name}\" (" + ", ".join(params) + ")"
-        name, btype = ci.get("Name"), ci.get("BlockType")
-        inst = ci.find(f"{NS_SL}Instance")
-        s = f'"{name}"'
-        if inst is not None:
-            s += " , " + fmt_symbol(inst)
-        params = []
-        for p in ci.findall(f"{NS_SL}Parameter"):
-            pa = p.find(f"{NS_SL}Access")
-            params.append(f"{p.get('Name')}:={fmt_access(pa) if pa is not None else '?'}")
-        if params:
-            s += " (" + ", ".join(params) + ")"
-        return f"CALLINFO {btype} {s}"
-    return f"?{scope}?"
-
-
-def render_statement(st):
-    label = ""
-    ld = st.find(f"{NS_SL}LabelDeclaration/{NS_SL}Label")
-    if ld is not None:
-        label = ld.get("Name") + ": "
-    toks = st.findall(f"{NS_SL}StlToken")
-    accesses = st.findall(f"{NS_SL}Access")
-    comments = []
-    for lc in st.iter(f"{NS_SL}LineComment"):
-        t = lc.findtext(f"{NS_SL}Text", "")
-        if t:
-            comments.append(t)
-    for cm in st.findall(f"{NS_SL}Comment"):
-        t = cm.findtext(f"{NS_SL}Text", "")
-        if t:
-            comments.append(t)
-    if not toks:
-        if label:
-            return label.rstrip()
-        return "// " + " | ".join(comments) if comments else ""
-    tok = toks[0].get("Text")
-    mn = TOKEN_MAP.get(tok, tok)
-    if tok == "EMPTY_LINE":
-        return label.rstrip() if label else ""
-    if tok == "COMMENT":
-        return "// " + " | ".join(comments)
-    ops = []
-    for a in accesses:
-        f = fmt_access(a)
-        if f.startswith("CALLINFO"):
-            return f"{label}CALL {f[9:]}" + ("   // " + " | ".join(comments) if comments else "")
-        ops.append(f)
-    line = f"{label:6s}{mn:6s} " + ", ".join(ops)
-    if comments:
-        line = f"{line:60s} // " + " | ".join(comments)
-    return line.rstrip()
-
-
-def render_interface(root):
-    out = []
-    for sec in root.iter(f"{NS_IF}Section"):
-        members = sec.findall(f"{NS_IF}Member")
-        out.append(f"  {sec.get('Name')}:")
-        for m in members:
-            out.extend(render_member(m, 4))
-    return out
-
-
-def render_member(m, indent):
-    out = []
-    cm = m.find(f"{NS_IF}Comment/{NS_IF}MultiLanguageText")
-    sv = m.findtext(f"{NS_IF}StartValue")
-    line = " " * indent + f"{m.get('Name')} : {m.get('Datatype')}"
-    if sv:
-        line += f" := {sv}"
-    if cm is not None and cm.text:
-        line = f"{line:55s} // {cm.text}"
-    out.append(line)
-    for sub in m.findall(f"{NS_IF}Member"):
-        out.extend(render_member(sub, indent + 2))
-    return out
-
-
-def main(path):
-    s = open(path, encoding="utf-8").read()
-    root = ET.fromstring(s)
-    blk = None
-    for tag in ("FB", "FC", "OB", "GlobalDB", "InstanceDB"):
-        blk = root.find(f".//SW.Blocks.{tag}")
-        if blk is not None:
-            btype = tag
-            break
-    attrs = blk.find("AttributeList")
-    name = attrs.findtext("Name")
-    num = attrs.findtext("Number")
-    lang = attrs.findtext("ProgrammingLanguage")
-    print(f"=== {btype} {num}: {name}  [{lang}] ===")
-    iface = attrs.find("Interface")
-    if iface is not None:
-        secs = iface.find(f"{NS_IF}Sections")
-        if secs is not None:
-            print("INTERFACE:")
-            for line in render_interface(secs):
-                print(line)
-    nwno = 0
-    for cu in blk.iter("SW.Blocks.CompileUnit"):
-        nwno += 1
-        title = ""
-        for mt in cu.iter("MultilingualTextItem"):
-            al = mt.find("AttributeList")
-            if al is not None and al.findtext("Culture") == "de-DE" and al.findtext("Text"):
-                title = al.findtext("Text")
-                break
-        print(f"\n--- NW {nwno}: {title} ---")
-        src = cu.find(f".//{NS_SL}StatementList")
-        if src is None:
-            print("   (kein STL-Quelltext)")
-            continue
-        for st in src.findall(f"{NS_SL}StlStatement"):
-            print(render_statement(st))
-
-
-if __name__ == "__main__":
-    for p in sys.argv[1:]:
-        main(p)
diff --git a/bin/activate_venv.bat b/bin/activate_venv.bat
new file mode 100644
index 0000000..2119d3f
--- /dev/null
+++ b/bin/activate_venv.bat
@@ -0,0 +1,20 @@
+@echo off
+REM ================================================================
+REM HundM_Fortna - Python Virtual Environment aktivieren
+REM ================================================================
+
+call "%~dp0setenv.bat"
+
+if not exist "%PROJECT%\.venv" (
+    echo FEHLER: Virtual environment nicht gefunden.
+    echo Bitte zuerst bin\install_py.bat ausfuehren.
+    exit /b 1
+)
+
+call "%PROJECT%\.venv\Scripts\activate.bat"
+echo Virtuelle Umgebung aktiviert.
+echo Python-Version:
+python --version
+echo.
+echo Installierte Pakete:
+pip list
diff --git a/bin/get_cmd.bat b/bin/get_cmd.bat
new file mode 100644
index 0000000..0699d98
--- /dev/null
+++ b/bin/get_cmd.bat
@@ -0,0 +1,7 @@
+@echo off
+REM ================================================================
+REM HundM_Fortna - Shell mit gesetzten Umgebungsvariablen oeffnen
+REM ================================================================
+
+call "%~dp0setenv.bat"
+start cmd /k "echo HundM_Fortna Umgebung aktiv. && echo PROJECT=%PROJECT%"
diff --git a/bin/install_py.bat b/bin/install_py.bat
new file mode 100644
index 0000000..54d7d5d
--- /dev/null
+++ b/bin/install_py.bat
@@ -0,0 +1,21 @@
+@echo off
+REM ================================================================
+REM HundM_Fortna - Python Virtual Environment einrichten
+REM ================================================================
+
+call "%~dp0setenv.bat"
+
+if not exist "%PROJECT%\.venv" (
+    echo Initialisiere Python virtual environment...
+    py -m venv "%PROJECT%\.venv" --upgrade-deps
+    echo Erfolgreich.
+
+    call "%PROJECT%\.venv\Scripts\activate.bat"
+    echo Installiere erforderliche Python Packages...
+    pip install -r "%PROJECT%\requirements.txt" -q
+    echo Erfolgreich.
+    deactivate
+) else (
+    echo .venv existiert bereits - Abbruch.
+    echo Zum Neuaufsetzen .venv loeschen und install_py.bat erneut ausfuehren.
+)
diff --git a/bin/setenv.bat b/bin/setenv.bat
new file mode 100644
index 0000000..9f7a3d8
--- /dev/null
+++ b/bin/setenv.bat
@@ -0,0 +1,56 @@
+@echo off
+REM ================================================================
+REM HundM_Fortna - Umgebungsvariablen Setup
+REM ================================================================
+
+echo Setting up environment variables for HundM_Fortna ...
+
+REM Basis-Projektpfad (Elternordner von bin\)
+set "PROJECT=%~dp0.."
+if "%PROJECT:~-6%"=="bin\.." set "PROJECT=%PROJECT:~0,-6%"
+if "%PROJECT:~-1%"=="\" set "PROJECT=%PROJECT:~0,-1%"
+
+REM Pfade fuer die Komponenten
+set "PV_BIN=%PROJECT%\bin"
+set "PV_LIB=%PROJECT%\lib"
+set "PV_CFG=%PROJECT%\cfg"
+set "PV_DATA=%PROJECT%\data"
+set "PV_DOC=%PROJECT%\doc"
+set "PV_TESTS=%PROJECT%\tests"
+
+REM PYTHONPATH um PV_LIB erweitern (nur wenn noch nicht enthalten)
+if not defined PYTHONPATH (
+    set "PYTHONPATH=%PV_LIB%"
+) else (
+    echo.%PYTHONPATH% | find /i "%PV_LIB%" >nul || set "PYTHONPATH=%PYTHONPATH%;%PV_LIB%"
+)
+
+REM Ueberladen von Umgebungsvariablen durch _setenv.bat
+REM (z.B. PV_DATA auf einen Netzlaufwerk-Pfad umbiegen)
+if exist "%~dp0_setenv.bat" (
+    echo Lade lokale Umgebungseinstellungen aus _setenv.bat...
+    call "%~dp0_setenv.bat"
+)
+
+REM Ordner erstellen falls sie nicht existieren
+if not exist "%PV_BIN%" mkdir "%PV_BIN%"
+if not exist "%PV_LIB%" mkdir "%PV_LIB%"
+if not exist "%PV_CFG%" mkdir "%PV_CFG%"
+if not exist "%PV_DATA%" mkdir "%PV_DATA%"
+if not exist "%PV_TESTS%" mkdir "%PV_TESTS%"
+
+REM Umgebungsvariablen anzeigen
+echo.
+echo ================================================================
+echo PROJECT      = %PROJECT%
+echo PV_BIN       = %PV_BIN%
+echo PV_LIB       = %PV_LIB%
+echo PV_CFG       = %PV_CFG%
+echo PV_DATA      = %PV_DATA%
+echo PV_LOG       = %PV_LOG%
+echo PV_RESULTS   = %PV_RESULTS%
+echo PV_EXAMPLES  = %PV_EXAMPLES%
+echo PV_TESTS     = %PV_TESTS%
+echo PYTHONPATH   = %PYTHONPATH%
+echo ================================================================
+echo.
diff --git a/bin/xmls2awl.bat b/bin/xmls2awl.bat
new file mode 100644
index 0000000..9a472a8
--- /dev/null
+++ b/bin/xmls2awl.bat
@@ -0,0 +1,19 @@
+@echo off
+REM ================================================================
+REM Konvertiert die xml Dateien in awl Dateien
+REM
+REM ================================================================
+
+call "%~dp0setenv.bat"
+
+REM .venv bevorzugen, sonst System-Python
+set "PYTHON=python"
+if exist "%PROJECT%\.venv\Scripts\python.exe" (
+    set "PYTHON=%PROJECT%\.venv\Scripts\python.exe"
+)
+
+"%PYTHON%" "%PV_LIB%\stlxml2awl.py" %*
+if errorlevel 1 (
+    echo FEHLER: stlxml2awl.py wurde mit Fehler beendet.
+    exit /b 1
+)
diff --git a/lib/stlxml2awl.py b/lib/stlxml2awl.py
new file mode 100644
index 0000000..4b3334b
--- /dev/null
+++ b/lib/stlxml2awl.py
@@ -0,0 +1,521 @@
+#!/usr/bin/env python3
+"""Wandelt TIA-Openness SimaticML XML (StatementList) in lesbaren AWL-Text um."""
+import argparse
+import datetime
+import re
+import sys
+from pathlib import Path
+import xml.etree.ElementTree as ET
+
+NS_IF = "{http://www.siemens.com/automation/Openness/SW/Interface/v5}"
+NS_SL = "{http://www.siemens.com/automation/Openness/SW/NetworkSource/StatementList/v5}"
+
+TOKEN_MAP = {
+    "A_BRACK": "A(", "O_BRACK": "O(", "AN_BRACK": "AN(", "ON_BRACK": "ON(",
+    "X_BRACK": "X(", "XN_BRACK": "XN(", "BRACKET": ")",
+    "NE_I": "<>I", "EQ_I": "==I", "GT_I": ">I", "LT_I": "<I", "GE_I": ">=I", "LE_I": "<=I",
+    "NE_D": "<>D", "EQ_D": "==D", "GT_D": ">D", "LT_D": "<D", "GE_D": ">=D", "LE_D": "<=D",
+    "NE_R": "<>R", "EQ_R": "==R", "GT_R": ">R", "LT_R": "<R", "GE_R": ">=R", "LE_R": "<=R",
+    "ADD_I": "+I", "SUB_I": "-I", "MUL_I": "*I", "DIV_I": "/I",
+    "ADD_D": "+D", "SUB_D": "-D", "MUL_D": "*D", "DIV_D": "/D",
+    "ADD_R": "+R", "SUB_R": "-R", "MUL_R": "*R", "DIV_R": "/R",
+    "ADD": "+", "NOP_0": "NOP 0", "NOP_1": "NOP 1",
+    "TAR2_ACCU1": "TAR2", "TAR1_ACCU1": "TAR1",
+    "LAR1_ACCU1": "LAR1", "LAR2_ACCU1": "LAR2",
+    "OPEN_DB": "OPN", "OPEN_DI": "OPN",
+    "EMPTY_LINE": "", "COMMENT": "//", "Assign": "=",
+}
+
+
+def fmt_symbol(access):
+    parts = []
+    for comp in access.findall(f"./{NS_SL}Symbol/{NS_SL}Component"):
+        name = comp.get("Name")
+        token = name if re.fullmatch(r"[A-Za-z_][A-Za-z0-9_]*", name) else f'"{name}"'
+        idx = [fmt_access(a) for a in comp.findall(f"{NS_SL}Access")]
+        if idx:
+            token += "[" + ",".join(idx) + "]"
+        if comp.get("SliceAccessModifier"):
+            token += "." + comp.get("SliceAccessModifier")
+        parts.append(token)
+    sym = ".".join(parts)
+    if access.get("Scope") == "GlobalVariable" and parts and not parts[0].startswith('"'):
+        sym = f'"{parts[0][1:-1] if parts[0].startswith(chr(34)) else parts[0]}"' + (
+            "." + ".".join(parts[1:]) if len(parts) > 1 else "")
+    return sym
+
+
+def fmt_address(addr):
+    area = addr.get("Area")
+    typ = addr.get("Type")
+    bit = int(addr.get("BitOffset", 0))
+    blk = addr.get("BlockNumber")
+    width = {"Bool": 1, "Byte": 8, "Word": 16, "DWord": 32, "Int": 16, "DInt": 32}.get(typ, 0)
+    sizech = {1: "", 8: "B", 16: "W", 32: "D"}.get(width, "?")
+    areach = {"Local": "L", "Memory": "M", "Input": "I", "Output": "Q", "DB": "DB", "DI": "DI",
+              "Timer": "T", "Counter": "C", "PeripheryInput": "PI", "PeripheryOutput": "PQ"}.get(area, area)
+    if area in ("DB", "DI"):
+        pre = f"DB{blk}." if blk else ""
+        core = f"{pre}{'DBX' if width == 1 else 'DB' + sizech}{bit // 8}"
+    elif area == "Timer":
+        return f"T {bit}"
+    elif area == "Counter":
+        return f"C {bit}"
+    else:
+        core = f"{areach}{sizech}{bit // 8}"
+    if width == 1:
+        core += f".{bit % 8}"
+    return core
+
+
+def fmt_indirect(ind):
+    width = ind.get("Width")
+    area = ind.get("Area")
+    reg = ind.get("Register", "")
+    inner = [fmt_access(a) for a in ind.findall(f"{NS_SL}Access")]
+    const = ind.find(f"{NS_SL}Constant")
+    off = ""
+    if const is not None:
+        off = const.findtext(f"{NS_SL}ConstantValue", "")
+    if width == "Block":  # OPN DB[var]
+        return f"DB[{inner[0]}]" if inner else f"DB[{off}]"
+    sizech = {"Bit": "X", "Byte": "B", "Word": "W", "Double": "D", "DWord": "D"}.get(width, "?")
+    areach = {"DB": "DB", "DI": "DI", "Local": "L", "Memory": "M", "Input": "I", "Output": "Q"}.get(area, area or "")
+    base = f"{areach}{sizech}" if areach not in ("DB", "DI") else f"{areach}{sizech}"
+    if reg:  # registerindirekt
+        return f"{base} [{reg},{off}]"
+    if inner:  # speicherindirekt
+        return f"{base} [{inner[0]}]"
+    return f"{base} [{off}]"
+
+
+def fmt_access(access):
+    scope = access.get("Scope")
+    if scope in ("LocalVariable", "GlobalVariable", "LocalConstant", "GlobalConstant"):
+        return fmt_symbol(access)
+    if scope in ("LiteralConstant", "TypedConstant"):
+        c = access.find(f"{NS_SL}Constant")
+        val = c.findtext(f"{NS_SL}ConstantValue", "") if c is not None else ""
+        typ = c.findtext(f"{NS_SL}ConstantType", "") if c is not None else ""
+        pref = {"Word": "W#16#", "DWord": "DW#16#", "Time": "", "S5Time": "", "Byte": "B#16#"}
+        if typ in ("Word", "DWord", "Byte") and not val.startswith(("2#", "16#", "W#", "DW#", "B#")):
+            return pref[typ] + val
+        return val
+    if scope == "AddressConstant":
+        c = access.find(f"{NS_SL}Constant")
+        return "P#" + c.findtext(f"{NS_SL}ConstantValue", "") if c is not None else "P#?"
+    if scope == "Address":
+        addr = access.find(f"{NS_SL}Address")
+        if addr is not None:
+            return fmt_address(addr)
+        ind = access.find(f"{NS_SL}Indirect")
+        if ind is not None:
+            return fmt_indirect(ind)
+        return "?ADDR?"
+    if scope == "Label":
+        lab = access.find(f"{NS_SL}Label")
+        return lab.get("Name") if lab is not None else "?LBL?"
+    if scope == "LabelDefinition":
+        lab = access.find(f"{NS_SL}Label")
+        return (lab.get("Name") + ":") if lab is not None else "?LBL?:"
+    if scope == "Statusword":
+        return access.find(f"{NS_SL}Statusword").get("Name", "?SW?")
+    if scope == "Call":
+        ci = access.find(f"{NS_SL}CallInfo")
+        if ci is None:
+            ins = access.find(f"{NS_SL}Instruction")
+            name = ins.get("Name")
+            params = []
+            for p in ins.findall(f"{NS_SL}Parameter"):
+                pa = p.find(f"{NS_SL}Access")
+                params.append(f"{p.get('Name')}:={fmt_access(pa) if pa is not None else '?'}")
+            return f"CALLINFO SYS \"{name}\" (" + ", ".join(params) + ")"
+        name, btype = ci.get("Name"), ci.get("BlockType")
+        inst = ci.find(f"{NS_SL}Instance")
+        s = f'"{name}"'
+        if inst is not None:
+            s += " , " + fmt_symbol(inst)
+        params = []
+        for p in ci.findall(f"{NS_SL}Parameter"):
+            pa = p.find(f"{NS_SL}Access")
+            params.append(f"{p.get('Name')}:={fmt_access(pa) if pa is not None else '?'}")
+        if params:
+            s += " (" + ", ".join(params) + ")"
+        return f"CALLINFO {btype} {s}"
+    return f"?{scope}?"
+
+
+def render_statement(st):
+    label = ""
+    ld = st.find(f"{NS_SL}LabelDeclaration/{NS_SL}Label")
+    if ld is not None:
+        label = ld.get("Name") + ": "
+    toks = st.findall(f"{NS_SL}StlToken")
+    accesses = st.findall(f"{NS_SL}Access")
+    comments = []
+    for lc in st.iter(f"{NS_SL}LineComment"):
+        t = lc.findtext(f"{NS_SL}Text", "")
+        if t:
+            comments.append(t)
+    for cm in st.findall(f"{NS_SL}Comment"):
+        t = cm.findtext(f"{NS_SL}Text", "")
+        if t:
+            comments.append(t)
+    if not toks:
+        if label:
+            return label.rstrip()
+        return "// " + " | ".join(comments) if comments else ""
+    tok = toks[0].get("Text")
+    mn = TOKEN_MAP.get(tok, tok)
+    if tok == "EMPTY_LINE":
+        return label.rstrip() if label else ""
+    if tok == "COMMENT":
+        return "// " + " | ".join(comments)
+    ops = []
+    for a in accesses:
+        f = fmt_access(a)
+        if f.startswith("CALLINFO"):
+            return f"{label}CALL {f[9:]}" + ("   // " + " | ".join(comments) if comments else "")
+        ops.append(f)
+    line = f"{label:6s}{mn:6s} " + ", ".join(ops)
+    if comments:
+        line = f"{line:60s} // " + " | ".join(comments)
+    return line.rstrip()
+
+
+def render_interface(root):
+    out = []
+    for sec in root.iter(f"{NS_IF}Section"):
+        members = sec.findall(f"{NS_IF}Member")
+        out.append(f"  {sec.get('Name')}:")
+        for m in members:
+            out.extend(render_member(m, 4))
+    return out
+
+
+def render_member(m, indent):
+    out = []
+    cm = m.find(f"{NS_IF}Comment/{NS_IF}MultiLanguageText")
+    sv = m.findtext(f"{NS_IF}StartValue")
+    line = " " * indent + f"{m.get('Name')} : {m.get('Datatype')}"
+    if sv:
+        line += f" := {sv}"
+    if cm is not None and cm.text:
+        line = f"{line:55s} // {cm.text}"
+    out.append(line)
+    for sub in m.findall(f"{NS_IF}Member"):
+        out.extend(render_member(sub, indent + 2))
+    return out
+
+
+def parse_block(path):
+    text = path.read_text(encoding="utf-8")
+    root = ET.fromstring(text)
+    for tag in ("FB", "FC", "OB", "GlobalDB", "InstanceDB"):
+        blk = root.find(f".//SW.Blocks.{tag}")
+        if blk is not None:
+            return blk, tag
+    return None, None
+
+
+def render_block(blk, btype):
+    out = []
+    attrs = blk.find("AttributeList")
+    name = attrs.findtext("Name")
+    num = attrs.findtext("Number")
+    lang = attrs.findtext("ProgrammingLanguage")
+    out.append(f"=== {btype} {num}: {name}  [{lang}] ===")
+    iface = attrs.find("Interface")
+    if iface is not None:
+        secs = iface.find(f"{NS_IF}Sections")
+        if secs is not None:
+            out.append("INTERFACE:")
+            out.extend(render_interface(secs))
+    nwno = 0
+    for cu in blk.iter("SW.Blocks.CompileUnit"):
+        nwno += 1
+        title = ""
+        for mt in cu.iter("MultilingualTextItem"):
+            al = mt.find("AttributeList")
+            if al is not None and al.findtext("Culture") == "de-DE" and al.findtext("Text"):
+                title = al.findtext("Text")
+                break
+        out.append(f"\n--- NW {nwno}: {title} ---")
+        src = cu.find(f".//{NS_SL}StatementList")
+        if src is None:
+            out.append("   (kein STL-Quelltext)")
+            continue
+        for st in src.findall(f"{NS_SL}StlStatement"):
+            out.append(render_statement(st))
+    return out, name, num
+
+
+# ---------------------------------------------------------------------------
+# Komplexitaets-Analyse / Kategorisierung
+#
+# Kategorie A: einfache Verknuepfungslogik, nahezu mechanische 1:1-Uebersetzung
+# Kategorie B: Ablaufsteuerung mit vielen Sprüngen, Kontrollfluss muss zu
+#              IF/CASE rekonstruiert werden
+# Kategorie C: Pointer-/Indirektzugriffe (registerindirekte Adressierung),
+#              hoechster Aufwand, Registeremulation nicht sinnvoll
+# ---------------------------------------------------------------------------
+
+JUMP_TOKENS = {
+    "JU", "JC", "JCN", "JL", "JP", "JBI", "JNBI",
+    "JZ", "JN", "JM", "JMZ", "JPZ", "JO", "JOS", "JUO", "LOOP",
+}
+INDIRECT_CALL_TOKENS = {"UC", "CC"}
+POINTER_ARITH_TOKENS = {
+    "LAR1_ACCU1", "LAR2_ACCU1", "TAR1_ACCU1", "TAR2_ACCU1", "ADDAR1", "ADDAR2",
+}
+
+
+def _pat(p):
+    return re.compile(p, re.IGNORECASE)
+
+
+# Namensmuster aus der Projekt-Klassifizierung (bekannte Bausteingruppen)
+C_NAME_PATTERNS = [
+    _pat(r"^Daten\w*$"),
+    _pat(r"^Fifo"),
+    _pat(r"^DBMOV$"),
+    _pat(r"(^|[\\/])Logistik([\\/]|$)"),
+    _pat(r"(^|[\\/])SS_Host([\\/]|$)"),
+    _pat(r"(^|[\\/])Visualisierung([\\/]|$)"),
+]
+B_NAME_PATTERNS = [
+    _pat(r"^MHM"),
+    _pat(r"_Bereich$"),
+    _pat(r"_OmniFahren$"),
+    _pat(r"_Ziel_FC$"),
+]
+A_NAME_PATTERNS = [
+    _pat(r"^MZylinder$"),
+    _pat(r"^MSensoren$"),
+    _pat(r"^MBlinken$"),
+    _pat(r"^MAntrieb_"),
+    _pat(r"(^|[\\/])Basics[_\\/]"),
+    _pat(r"^Set_(Input|Output)$"),
+]
+
+
+def classify_by_name(xml_path):
+    stem = xml_path.stem
+    full = str(xml_path)
+    for patterns, cat in ((C_NAME_PATTERNS, "C"), (B_NAME_PATTERNS, "B"), (A_NAME_PATTERNS, "A")):
+        for pat in patterns:
+            if pat.search(stem) or pat.search(full):
+                return cat
+    return None
+
+
+class Complexity:
+    def __init__(self):
+        self.jumps = 0
+        self.labels = 0
+        self.indirect_calls = 0
+        self.register_indirect = 0
+        self.pointer_arith = 0
+        self.networks = 0
+
+    @property
+    def has_pointer_signal(self):
+        return self.register_indirect > 0 or self.pointer_arith > 0
+
+    @property
+    def has_branch_signal(self):
+        return self.indirect_calls > 0
+
+
+def analyze_complexity(blk):
+    c = Complexity()
+    c.networks = sum(1 for _ in blk.iter("SW.Blocks.CompileUnit"))
+    for st in blk.iter(f"{NS_SL}StlStatement"):
+        toks = st.findall(f"{NS_SL}StlToken")
+        if toks:
+            text = toks[0].get("Text")
+            if text in JUMP_TOKENS:
+                c.jumps += 1
+            if text in INDIRECT_CALL_TOKENS:
+                c.indirect_calls += 1
+            if text in POINTER_ARITH_TOKENS:
+                c.pointer_arith += 1
+        if st.find(f"{NS_SL}LabelDeclaration") is not None:
+            c.labels += 1
+    for ind in blk.iter(f"{NS_SL}Indirect"):
+        if ind.get("Register"):
+            c.register_indirect += 1
+    return c
+
+
+def classify(xml_path, complexity):
+    if complexity.has_pointer_signal:
+        return "C", f"registerindirekte Adressierung ({complexity.register_indirect}x Indirect, {complexity.pointer_arith}x AR-Arithmetik)"
+    name_cat = classify_by_name(xml_path)
+    if name_cat == "C":
+        return "C", "Namensmuster (Daten*/Fifo*/DBMOV/Logistik/SS_Host/Visualisierung)"
+    if complexity.has_branch_signal:
+        return "B", f"{complexity.indirect_calls}x indirekter Aufruf (UC/CC) - CASE-Verteiler noetig"
+    if name_cat == "B":
+        return "B", "Namensmuster (HM-Module/_Bereich/_OmniFahren/_Ziel_FC)"
+    if name_cat == "A":
+        return "A", "Namensmuster (einfache Verknuepfungslogik)"
+    return "A", "kein Namensmuster erkannt, keine Pointer-/Sprungauffaelligkeiten"
+
+
+class NotABlockError(Exception):
+    """XML enthaelt keinen SW.Blocks-Export (z.B. UDT, Tag-Tabelle)."""
+
+
+class ConversionResult:
+    def __init__(self, xml_path, awl_path, btype, name, num, complexity, category, reason):
+        self.xml_path = xml_path
+        self.awl_path = awl_path
+        self.btype = btype
+        self.name = name
+        self.num = num
+        self.complexity = complexity
+        self.category = category
+        self.reason = reason
+
+
+def convert_file(xml_path):
+    blk, btype = parse_block(xml_path)
+    if blk is None:
+        raise NotABlockError("kein SW.Blocks-Element gefunden (kein Baustein-Export)")
+    lines, name, num = render_block(blk, btype)
+    awl_path = xml_path.with_suffix(".awl")
+    awl_path.write_text("\n".join(lines) + "\n", encoding="utf-8")
+    complexity = analyze_complexity(blk)
+    category, reason = classify(xml_path, complexity)
+    return ConversionResult(xml_path, awl_path, btype, name, num, complexity, category, reason)
+
+
+# ---------------------------------------------------------------------------
+# CLI / Massenkonvertierung
+# ---------------------------------------------------------------------------
+
+def find_xml_files(directory):
+    return sorted(Path(directory).rglob("*.xml"))
+
+
+def default_log_path():
+    project_root = Path(__file__).resolve().parent.parent
+    log_dir = project_root / "log"
+    log_dir.mkdir(parents=True, exist_ok=True)
+    ts = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
+    return log_dir / f"stlxml2awl_{ts}.log"
+
+
+def _format_result_line(r):
+    c = r.complexity
+    stats = (f"Sprünge={c.jumps} Labels={c.labels} IndirekteAufrufe={c.indirect_calls} "
+             f"RegisterIndirekt={c.register_indirect} AR-Arithmetik={c.pointer_arith} NW={c.networks}")
+    return (f"{r.btype:10s} {str(r.num or ''):>5s}  {r.name or '':30s} [{stats}]\n"
+            f"    Grund: {r.reason}\n"
+            f"    Pfad : {r.xml_path}")
+
+
+def write_log(log_path, results, skipped, errors):
+    log_path.parent.mkdir(parents=True, exist_ok=True)
+    lines = []
+    ts = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    lines.append(f"STL -> AWL Konvertierung  ({ts})")
+    lines.append("=" * 70)
+    lines.append("")
+    lines.append(f"Konvertiert                  : {len(results)}")
+    lines.append(f"Uebersprungen (kein Baustein) : {len(skipped)}")
+    lines.append(f"Fehler                        : {len(errors)}")
+    lines.append("")
+
+    by_cat = {"A": [], "B": [], "C": []}
+    for r in results:
+        by_cat[r.category].append(r)
+    lines.append(f"Kategorie A (einfache Verknuepfungslogik)  : {len(by_cat['A'])}")
+    lines.append(f"Kategorie B (Ablaufsteuerung/Sprungmarken) : {len(by_cat['B'])}")
+    lines.append(f"Kategorie C (Pointer-/Indirektzugriffe)    : {len(by_cat['C'])}")
+    lines.append("")
+    lines.append("Hinweis: automatische Einschaetzung anhand Codeanalyse (registerindirekte")
+    lines.append("Zugriffe, indirekte Aufrufe) und bekannter Namensmuster. Ersetzt keine")
+    lines.append("fachliche Pruefung, dient als Priorisierungshilfe fuer die Massenkonvertierung.")
+    lines.append("")
+
+    if by_cat["C"]:
+        lines.append("-" * 70)
+        lines.append(f"Kategorie C - Pointer-/Indirektzugriffe: MANUELLE UEBERARBEITUNG NOETIG ({len(by_cat['C'])})")
+        lines.append("-" * 70)
+        for r in sorted(by_cat["C"], key=lambda r: str(r.xml_path)):
+            lines.append(_format_result_line(r))
+        lines.append("")
+
+    if by_cat["B"]:
+        lines.append("-" * 70)
+        lines.append(f"Kategorie B - Ablaufsteuerung/viele Sprungmarken: REVIEW ERFORDERLICH ({len(by_cat['B'])})")
+        lines.append("-" * 70)
+        for r in sorted(by_cat["B"], key=lambda r: str(r.xml_path)):
+            lines.append(_format_result_line(r))
+        lines.append("")
+
+    if errors:
+        lines.append("-" * 70)
+        lines.append(f"Fehler bei der Konvertierung ({len(errors)})")
+        lines.append("-" * 70)
+        for path, exc in errors:
+            lines.append(f"{path}: {exc}")
+        lines.append("")
+
+    if skipped:
+        lines.append("-" * 70)
+        lines.append(f"Uebersprungen ({len(skipped)}, kein Baustein-Export, z.B. UDT/Tag-Tabelle)")
+        lines.append("-" * 70)
+        for path in skipped:
+            lines.append(str(path))
+        lines.append("")
+
+    log_path.write_text("\n".join(lines) + "\n", encoding="utf-8")
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(
+        description="Wandelt TIA-Openness SimaticML XML (StatementList) in lesbaren AWL-Text um.")
+    parser.add_argument("files", nargs="*", type=Path, help="Einzelne XML-Dateien")
+    parser.add_argument("--dir", "--directory", dest="directory", type=Path,
+                         help="Verzeichnis rekursiv nach .xml-Dateien durchsuchen und alle konvertieren")
+    parser.add_argument("--log", type=Path,
+                         help="Pfad der Log-Datei (Default: <Projekt>/log/stlxml2awl_<Zeitstempel>.log)")
+    args = parser.parse_args(argv)
+
+    targets = list(args.files)
+    if args.directory:
+        targets.extend(find_xml_files(args.directory))
+    if not targets:
+        parser.error("keine XML-Dateien angegeben (Pfade und/oder --dir)")
+
+    results, skipped, errors = [], [], []
+    for xml_path in targets:
+        try:
+            result = convert_file(xml_path)
+            results.append(result)
+            print(f"OK   [{result.category}] {xml_path} -> {result.awl_path.name}")
+        except NotABlockError:
+            skipped.append(xml_path)
+        except Exception as exc:
+            errors.append((xml_path, exc))
+            print(f"FEHLER {xml_path}: {exc}", file=sys.stderr)
+
+    log_path = args.log or default_log_path()
+    write_log(log_path, results, skipped, errors)
+
+    print()
+    print(f"{len(results)} konvertiert, {len(skipped)} uebersprungen, {len(errors)} Fehler.")
+    print(f"Kategorie A/B/C: "
+          f"{sum(1 for r in results if r.category == 'A')}/"
+          f"{sum(1 for r in results if r.category == 'B')}/"
+          f"{sum(1 for r in results if r.category == 'C')}")
+    print(f"Log: {log_path}")
+
+    return 1 if errors else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())