MVME3604-5352 MVME5500-0161 MVME712/M MVME705B MVME374-1 MVME300 MVME2604-712I-O卡件工控PLCMVME2604712I/O MVME2301-900 MVME2100 MVME188A MVME167-33B MVME167-002BE MVME162-522A01-W3960B/61C MVME162-13 MVME162-12 MVME162-10 MVME162-012 MVME117A XVME-957 XVME-674 XVME674
网络拓扑然而，PROFIBUS-DP网络可能最多有127个站点（地址0-126）126预留用于调试目的。总线系统必须细分为处理这么多参与者的各个部分。这些段通过以下链接：中继器。中继器的功能是调节串行信号，以允许连接部分。实际上，可以使用再生和非再生中继器。再生中继器实际上会调节信号，以允许增加总线范围。
每个段最多允许32个站，中继器计为一个站地址。可以使用仅由光纤调制解调器中继器组成的专用“链路”段跨越长距离。塑料光纤段通常为50米或更少玻璃纤维、光纤段可能延伸数公里。用户分配一个唯一的PROFIBUS站地址，以识别每个主、从或整个网络中的中继器。公交车上的每个参与者都必须有一个唯一的车站住址PROFIBUS连接通常使用9针sub-D连接器创建。另外连接器用于IP67设备。最小连接包括屏蔽带端接的双绞线电缆（屏蔽至针脚1，双绞线至针脚3和8）适当总线插头中的连接。9针sub-D的针到信号约定连接器描述如下。本章包含以下程序的信息：�审查系统电源要求�在PLC机架中安装PROFIBUS模块�安装PROFIBUS布线将主机连接到PROFIBUS网络选择合适的线路类型现场总线电缆类型安装总线终端审查系统电源要求查看系统的电源要求，以确保您的电源足够的容量支持PROFIBUS主机。电源负荷自动由机器版配置软件计算。有关手动计算的详细信息电源负载可在Series 90-30 Installation and Hardware Manual（Series 90-30安装和硬件手册）中找到，GFK-0356。注：大容量90-30系列电源IC693PWR330或IC693PWR331是，特别是对于配备CPU350或更高版本的系统，或具有以太网适配器和/或多个PROFIBUS模块。90-30系列PROFIBUS主模块在5VDC下消耗450mA（典型）。Network TopologyA PROFIBUS-DP network may have up to 127 stations (address 0-126), however address126 is reserved for commissioning purposes. The bus system must be sub-divided into
individual segments to handle this many participants. These segments are linked by
repeaters. The function of a repeater is to condition the serial signal to allow connection of
segments. In practice, both regenerating and non-regenerating repeaters may be used.
Regenerating repeaters actually condition the signal to allow increased range of the bus.
Up to 32 stations are allowed per segment and the repeater counts as a station address.
A specialized “link” segment consisting only of optical fiber modem repeaters may be used
to span long distances. Plastic fiber optic segments are typically 50 meters or less while
glass fiber, optic segments may extend several kilometers.
The user assigns a unique PROFIBUS station address to identify each master, slave, or
repeater in the entire network. Each participant on the bus must have a unique station
address.PROFIBUS connections are typically created with a 9-pin sub-D connector. Other
connectors are used for IP67 devices. A minimum connection consists of a shielded
twisted-pair cable (shield to pin 1 and twisted-pair wires to pins 3 and 8) with terminating
connections in the appropriate bus plugs. The pin-to-signal conventions for a 9-pin sub-D
connector are described below.This chapter contains information on the following procedures:
� Reviewing system power requirements
� Installing the PROFIBUS module in the PLC rack
� Installing PROFIBUS wiring
� Connecting the Master to the PROFIBUS network
� Selecting the proper line type
� PROFIBUS cable types
