Industrial control system with web enabled I/O modules
    3.
    发明公开
    Industrial control system with web enabled I/O modules 有权
    工业产权管理公司Eingangs- / Ausgangsmodulen

    公开(公告)号:EP1251414A2

    公开(公告)日:2002-10-23

    申请号:EP02008549.4

    申请日:2002-04-16

    IPC分类号: G05B19/05

    摘要: An industrial control system provides a programmable logic controller communicating with I/O modules which provide an electrical interface to controlled equipment and which support web servers for communication of I/O data directly with the Internet. The programmable logic controller communicates with the I/O modules over a control-network which may be separate from or shared with the Internet communications. A lock-out system prevents collisions between web clients writing to I/O and allows the programmable logic controller to limit web access to critical I/O points.

    摘要翻译: 工业控制系统提供与I / O模块通信的可编程逻辑控制器,该I / O模块为受控设备提供电接口,并支持Web服务器直接与因特网通信I / O数据。 可编程逻辑控制器通过控制网络与I / O模块进行通信,该控制网络可能与互联网通信分离或共享。 锁定系统可防止Web客户端写入I / O之间的冲突,并允许可编程逻辑控制器限制Web访问关键I / O点。