pac目前锁定的大应用领域仍是工控,而来自工厂的实时数据可以令管理阶层拥有更丰富的信息资源,以便借此进行决策,但是要安装能够提供工厂数据的系统可能相当困难。企业系统通常会通过odbc、ado及xml等标准输入来自自动化系统的数据。plc的做法是通过opc之类的标准提供通信能力,也就是说,必须加入pc才能使用
opc来取得数据,并且使用odbc、ado和刀ill之类的标准将数据反馈给企业。而pac可 以有效地将工厂数据整合至erp系统中,让控制系统能够直接和外部数据库通信。而当控制系统连接至数据库及网站时,安全性的问题开始出现。为了获得高的安全性,许多厂商选择不要将自动化系统与企业连接。但是大致上来说,连接的优点远超过安全问题,虽然plc可以保护它不被工厂的入侵者偷窃,但是plc难以对抗以以太网络连接端口未受保护封包为目标的黑客。pac可以在利用网络传输数据之际进行编码,因此而保护资料。虽然这在今天可能不是关注的焦点,但是在将来,它可能会是影响pac进驻工厂的主要因素。
一机多用节省成本。就成本配置来看,在小型的数字控制应用中,控制器的价格可能比vo模块的价格更高。对这些应用环境而言,一个仅控制数字vo线路的微型plc可能是理想 的解决方案。但是,如果系统需要视觉或仪器控制,就必须为这些功能另外购置独立的控制器。plc控制器并非为了仪器控制所需的高速模拟νo或视觉应用所需的高速数据传输速度而设计,因此plc没有视觉或仪器控制模块,必须为这些应用配置独立的控制器,从而提高成本。而以pac的状况来看,一部控制器和机架就可以处理数字及模拟vo、动作、视觉及仪器,因此节省多部控制器的费用,每当控制系统需要多重功能时, pac相比之下成本低。
在工厂中,震动常常是造成pc死机的原因,这也是plc的长项,大部分的plc是采用nema封装。在这种环境中,具备额外冷却设计、坚固外壳、加强震动及冲撞规格的p泪平 台可以提供近似于plc的可靠性,不过此类的pxi平台上面无法配置硬盘,而用内存来取代,以避免震动所带来的不稳定。目前,甚至有厂商将软件刻录在fpga上来取代硬盘,如此一来可完全将机械运作排除于pac之外,增强稳定性。
产品承诺:
保 证 全新原装进口,
保 证 安全准时发货,
保 证售后服务质量,
优势价格,大量现货。
主营dcs系统配件
机器人系统配件
大型伺服系统配件
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agilestar - 10g-xnpk-zrd-15?42-14-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?43-73-as - for foundry - new
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agilestar - 10g-xnpk-zrd-15?45-32-as - for foundry - new
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agilestar - 10g-xnpk-zrd-15?51-72-as - for foundry - new
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agilestar - 10g-xnpk-zrd-15?53-33-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?54-13-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?54-94-as - for foundry - new
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agilestar - 10g-xnpk-zrd-15?56-55-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?57-36-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?58-17-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?58-98-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?59-79-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?60-61-as - for foundry - new
agilestar - 10g-xnpk-zrd-15?61-42-as - for foundry - new
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agilestar - smc10gxen-zr - for smc - new in box
agilestar - ons-xc-10g-l2 - for cisco - nib
agilestar - ons-xc-10g-61-4 - for cisco - nib
agilestar - ons-xc-10g-60-6 - for cisco - nib
agilestar - ons-xc-10g-59-7 - for cisco - nib
agilestar - ons-xc-10g-58-9 - for cisco - nib
agilestar - ons-xc-10g-58-1 - for cisco - nib
agilestar - ons-xc-10g-57-3 - for cisco - nib
agilestar - ons-xc-10g-56.5 - for cisco - nib
agilestar - ons-xc-10g-55-7 - for cisco - nib
agilestar - ons-xc-10g-54-9 - for cisco - nib
agilestar - ons-xc-10g-54-1 - for cisco - nib
agilestar - ons-xc-10g-53-3 - for cisco - nib
agilestar - ons-xc-10g-52-5 - for cisco - nib
agilestar - ons-xc-10g-51-7 - for cisco - nib
agilestar - ons-xc-10g-50-9 - for cisco - nib
agilestar - ons-xc-10g-50-1 - for cisco - nib
agilestar - ons-xc-10g-49-3 - for cisco - nib
agilestar - ons-xc-10g-48-5 - for cisco - nib
agilestar - ons-xc-10g-47-7 - for cisco - nib
agilestar - ons-xc-10g-46-9 - for cisco - nib
agilestar - ons-xc-10g-46-1 - for cisco - nib
agilestar - ons-xc-10g-45-3 - for cisco - nib
agilestar - ons-xc-10g-43-7 - for cisco - nib
agilestar - ons-xc-10g-42-9 - for cisco - nib
agilestar - ons-xc-10g-42-1 - for cisco - nib
agilestar - ons-xc-10g-41-3 - for cisco - nib
兴城市金誉自动化设备商行