同时，如果没有读取权限，则无法检视共用物件的状态，进而限制这些物件的使用性。
Also, without read access, the state of Shared objects cannot be viewed, which limits their usefulness.
此选项可扩大或缩小侦听套接字的范围，从而使得公共用户和私人用户可以在适当情况下对站点进行无限制的访问，或者可以根据需要对同一站点进行有限制的访问。
This option widens or Narrows the scope of a listening socket, enabling unrestricted access from public and private users when appropriate, or restricting access only to the same site, as required.
KNX标准是不受平台限制并且兼容不同设备供应商和各种类的设备共用。
The standard is platform independent and guarantees multi-vendor and cross-discipline interoperability.
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