IS200DSVOH1B
IS200DSVOH1B
IS200DSVOH1B
mainly used in sensors, actuators, electrical drives, PLC, textile and building automation, etc. The latter two series adopt RS485 communication standards, with transmission rates ranging from 9.6kbps to 12Mbps, and transmission distances ranging from 1200M to l00m (depending on the transmission rate). The basic modes of media access control are token mode between master stations and master/slave mode between MASTER and slave stations, as well as hybrid mode combining the two modes. Profibus is a mature bus, which is widely used in engineering.
4. The influence of FCS on computer control system
Traditional computer control system generally uses DCS structure. In DCS, A POINT-TO-POINT CONNECTION IS REQUIRED FOR FIELD SIGNALS, AND THE I/O TERMINALS ARE PLACED IN THE CONTROL CABINET WITH THE PLC OR AUTOMATED METER, RATHER THAN IN THE FIELD. This requires laying a large number of signal transmission cables, wiring complex, both cost material and time consuming, signal attenuation and easy to be 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
