西门子
5./4
Siemens D 21.4 · 2017
Communication
PROFINET.
5.
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概述
（继续）
灵活性
短响应时间和优化的过程是基本的
requirements for competitiveness in global markets because the
产品生命周期越来越缩短。
PROFINET确保在植物结构和植物结构中的最大灵活性
生产工艺并启用创新机器和
植物概念要实施。例如，移动设备
也可以集成在难以访问的位置。
Flexible topologies
除了由estab的表征为特征的线性结构之外
lished fieldbuses, PROFINET also enables the use of star, tree
和戒指结构。这是可以通过交换技术 -
通过主动网络组件，如工业醚 -
net switches and media converters, or by integrating switch
功能进入现场设备。这会产生更大的灵活性
用于规划机器和植物，以及减少
布线要求。
The PROFINET network can be installed without any specialist
knowledge at all and meets all requirements that are relevant in
the industrial environment. The "PROFINET Installations Guide-
lines" assist manufacturers and users with network planning,
installation and commissioning. Symmetrical copper cables or
RFI-resistant fiber-optic cables are used, depending on the
application. Devices from different manufacturers are easily
connected via standardized and rugged plug connectors (up
到IP65 / IP67保护程度）。
By integrating switch functionality into the devices, linear struc-
tures can be created that are directly oriented toward an existing
machine or plant structure. This reduces cabling overhead and
cuts down on components such as external switches.
Iwlan.
PROFINET还支持无线通信Industrial
Wireless LAN, opening up new fields of application. For example,
衣服的技术，如尾随电缆可以是
更换和使用自动导向车辆系统和
mobile operator terminals becomes possible.
安全
The PROFIsafe safety profile, which has been tried and tested
with PROFIBUS and which permits the transmission of standard
and safety-related data on a single bus cable, can also be used
与Profinet。没有必要的特殊网络组件
对于故障安全通信，这意味着标准
交换机和标准网络过渡可以继续
使用而没有任何限制。此外，故障安全通信
cation is equally possible via Industrial Wireless LAN (IWLAN).
Open standard
PROFINET，开放式多供应商标准
(IEC 61158/IEC 61784), is supported by PROFIBUS and
PROFINET INTERNATIONAL（PI）。它代表最大透明 -
ency, open IT communication, network security and simultane-
ous实时沟通。
Thanks to its openness, PROFINET provides the basis for a
植物中标准化自动化网络，所有其他
machines and devices can be connected. Even the integration
of existing plant components, for example with PROFIBUS,
presents no problems due to the use of network transitions.
使用Web工具
Thanks to the unrestricted support of TCP/IP, PROFINET permits
the use of standard Web services in the device, such as Web
servers. Irrespective of the tool used, information from the auto-
可以使用几乎任何位置访问Mation级别
commercially available Internet browser. This considerably sim-
推力调试和诊断。用户可以决定
为了自己对他们想要的世界有多开放
allow for their machine or plant. This means that PROFINET can
be used simply as an isolated plant network or connected via
适当的安全模块，例如SCALANCE S Mod-
ules, to the office network or the Internet. In this way, new remote
维护概念或生产高速交换 -
tion data become possible.
Expandability
一方面，PROFINET促进了现有的整合
系统和网络没有任何努力或费用。在这方面
方式，PROFINET保障现有工厂的投资
通过PROFIBUS和其他现场总线进行通信的PONENTS
such as AS-Interface. On the other hand, additional PROFINET
nodes can be added at any time. By using additional network
components, network infrastructures can be expanded using
cabling or wireless methods – even while the plant is operating.
© Siemens AG 2017