DCS network communication address issue

You’re asking too many questions; there are several of them

1. What is the relationship between the DCS console IP address and the master controller card IP address and the network switch? How are these IP addresses set and reflected? What is the relationship between networks A, B, and C? The IP address is set by the engineers at the beginning of the project; each node in the local area network has its own IP address. The nodes include DCS operation stations as well as primary and secondary controllers. There is a three-layer network for central control, with networks A and B serving as redundant control networks, while C serves as a separate operation network. 2. How is a fiber optic transceiver connected to devices at the hardware level? And achieve communication? Fiber optic transceivers are connected to the optical ports of switches via jumpers, or through optoelectronic converters. Both switches and optoelectronic converters must have the capability to convert network signals into optical signals – that is, to transform signals that are prone to attenuation into signals that are less susceptible to it. A pair of fiber optic transceivers can transmit signals over long distances using optical fibers. 3. What is the relationship between local area networks and wide area networks? How is interconnection achieved? Does a chemical company have a wide area network? Is it still only a local network? Does one IP address represent one local area network? A local area network generally refers to a network structure composed of all nodes, including switches and the like. Typically, the network of a factory is referred to as a local area network. A wide area network, on the other hand, is formed when a factory’s internal network is connected to the external internet through firewalls and similar devices. In fact, for security reasons, most factories’ internal networks are not connected to the Internet in order to prevent the intrusion of viruses and malware.