这个安装包需要订购的。当然，如果你和西门子有长期合作关系，他们会免费提供给你。 

PCS 7 V9.0 SP3 之前的系统现在都存在一个DoS 的安全性问题。我们的客户已经要求从v9.0 sp2 升级去sp3 了。 

详情可以看这个链接。

https://cert-portal.siemens.com/productcert/pdf/ssa-270778.pdf

A Denial-of-Service vulnerability was found in SIMATIC PCS 7, SIMATIC WinCC and SIMATIC NET PC software when encrypted communication is enabled. The vulnerability could allow an attacker with network access to cause a Denial-of-Service condition under certain circumstances (versions prior to SIMATIC WinCC V7.3 or SIMATIC PCS 7 V8.1 are not affected as encrypted communication is not an option). Siemens has released updates for several affected products and recommends that customers update to the latest version(s). Siemens is preparing further updates and recommends specific countermeasures until patches are available.