fix: variables inside of function blocks / with two path segments (#1729

)

Solves: 
[Bug]: EIP only working with variables with an odd character count (in second path segment) #1602

plc4j/drivers/eip/src/main/java/org/apache/plc4x/java/eip/base/protocol/EipProtocolLogic.java

@@ -705,7 +705,7 @@ public static byte[] toAnsi(String tag) throws SerializationException {
                     newSegment = new LogicalSegment(new MemberID((byte) 0x00, Short.parseShort(identifier)));
                     segments.add(newSegment);
                 } else {
-                    newSegment = new DataSegment(new AnsiExtendedSymbolSegment(identifier, (short) 0));
+                    newSegment = new DataSegment(new AnsiExtendedSymbolSegment(identifier, (identifier.length() % 2 == 0) ? null : (short) 0));
                     segments.add(newSegment);
                 }
             } else {