小弟再使用STEP7中OS上传标签到WINCC的时候，出现这个错误，百思不得其解。
附录上TRANSFER：
SIMATIC AS-OS-Engineering V7.0 SP1
Copyright ?SIEMENS AG 1995-2007. All Rights Reserved.

Compilation log
===============

S7 project name: 201G
S7 project path: F:\201g\201g.s7p
Compilation mode: AS-oriented
Scope of compilation: Changes
Date of compilation: Tuesday, November 30, 2010 4:38:29 PM

Options
-------

Variables and messages Yes
SFC Visualization No
Picture tree No
Create / update block icons No
Archive tags Yes (Minimum acquisition cycle: 1 second)
Create/update diagnostic screens No


WinCC project paths
-------------------

201G(OS) F:\201g\wincproj\201G(OS)\201G(OS).mcp


AS-OS assignments and network connections
-----------------------------------------

OS S7 program Subnet Subnet type WinCC unit Station Segment Rack Slot Address

201G(OS) LG_A Ethernet(1) Ind. Eth. TCP/IP 0 2 192.168.0.25



Data update (LG_A)
------------------

*** Error(s) ***: Internal error: Could not access a process variable. Error number: 12010

00 h 00 min 03 sec

先查了，那个错误，内部错误，有一个过程变量不能够访问。然后检查所有标签，都是普通类型的。而且重要的是，以前另几个站上传都没问题，而且没有修改过，现在都不能上传，请问何故啊？晚上在线等。