IS200VAICH1D
IS200VAICH1D
IS200VAICH1D
interfered with, and inconvenient maintenance. DCS is generally composed of operator station, control station, complex structure, high cost. And DCS is not an open system, poor interoperability, difficult to achieve data sharing. Pc-based FCS, on the other hand, completely overcomes these shortcomings.
(1) in the FCS, by means of field bus technology, all the I/O modules are in the industrial field, and all the signals through a distributed intelligent I/O modules is converted to a standard digital signal at the scene, just a cable can connect all the child standing, and then sends the field signal very briefly to the control room monitoring equipment, reduces the cost, It is also easy to install and maintain, and digital data transmission makes the system have high transmission speed and strong anti-interference ability.
(2) FCS is open. In FCS, software and hardware are subject to the same standards, which makes them interchangeable and easy to replace. Program design IEC1131-3 five international standard programming language, programming and development tools are completely open, but also can use PC rich hardware and software resources.
(3) The efficiency of the system is greatly improved. In FCS, a PC can simultaneously complete the PLC and NC/CNC tasks that used to be completed by two devices. Under the multi-task Windows NT operating system, the soft PLC in PC can execute up to a dozen PLC tasks at the same time, which not only improves the efficiency, but also reduces the cost. And the PLC on PC has the function of online debugging and simulation, which greatly
