SANYO 65BM003HBRTA
现货、英维思TRICONEX、西屋、西门子停产卡件、模块!特多优惠等您来!!
根据国际电工委员会(IEC)和美国仪表协会(ISA)的定义:现场总线是连接智能现场设备和自动化系统的数字、双向传输、多分支结构的通信网络,它的关键标志是能支持双向多节点、总线式的全数字通讯,具有可靠性高、稳定性好、抗干扰能力强、通信速率快、系统安全、造价低廉、维护成本低等特点。
●国际电工协会(IEC)的SP50委员会对现场总线有以下三点要求:
(1)同一数据链上过程控制单元(PCU)、PLC等与数字1/0设备互连;
(2)现场总线控制器可对总线上的多个操作站、传感器及执行机构等进行数据存取;
(3)通信媒体安装费用较低。
●SP50委员会提出的两种现场总线结构模型是:
(1)星型总线用短距离、廉价、低速率电缆取代模拟信号传输线
(2)总线型总线数据传输距离长、速率高,采用点对点、点对多点和广播式通信方式
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厦门仲鑫达自动化设备有限公司
欧阳英(销售经理)
移动电话:13394057292
电话:0592-5856292
传真:0592-5165561
邮箱:370848070@qq.com
Q Q :370848070 , 2687338778
地址;厦门思明区湖滨东路湖光大厦8楼A单元
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专业销售大型控制系统及各种进口模块备件品牌销售:Allen Bradley(罗克韦尔): 1756/1757/1747/1746/1771/1785系列、Reliance机电等产品。 Schneider(施耐德):MODICON 140系列、Quantum内存卡、Quantum电源模块等。GE(美国通用电气)IC693/IC697系列PLC 模块,FOXOBORO FBM/CP30/CP40/CP60模块,TRICONEX冗余容错系统模块:3700A/3805E/3604E/3503E/3504E,等一些停产备品、备件的销售。
所有备件的质保期均为1年,经过专业测试认证。
如果您需要订购产品超过1件,请与我们联系,我们可以为您提供折扣。
我们仅采用快递方式递送备件。(顺丰)
如果您发现其他供货商为相同产品提供更为低廉的价格,我们也愿意参照其价格向您提供进一步的折扣。如果还有其他任何问题,请随时与我们联系。
请让我们知道您有任何,备品,备件,的需要,我们可以给您进一步的援助,我们等候您的询盘。
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