Thread Content
I’ve been looking at Yokogawa’s CS3000 recently. I’ve never worked with control systems before, so there are some things I don’t understand; I hope experts can help me. What is that channel number used for during configuration? Where are bus1 and bus2 in a V-network network card usually connected to? Clock issues in CS3000: What is the OS clock for? As a lowly worker with little knowledge of systems, how should I learn about control systems, and from which aspects should I start? Please ask an expert for help; I really don’t know where to start
The channel number is the address of the IOM; it corresponds one-to-one with input AI/DI and output AO/DO. %z xxy1nn–>%z: xx indicates the rack (node) number, ranging from 01 to 10; y indicates the card number, ranging from 1 to 8. The value 1 denotes a fixed value. nn represents the corresponding channel on the card (analog values range from 01 to 16, while status values range from 01 to 32). Bus1 and Bus2 in the network card are connected to the field control station FCS, providing redundancy between them. For the cs3000 system, a separate HIS unit can be installed, and by using the key code of the engineer station (usually HIS0164), a testing function can be utilized. In this way, a virtual system that simulates actual operating conditions can be created.
Can the two bus interfaces of the network card that I saw in the book be connected in reverse? I’m not sure if the redundancy you mentioned works in this way
The network card of the CS300 is a Yokogawa-specific network card (VF701; it is said that VF702 is now available). It has two coaxial cable connectors that can be connected in either order. The labels BUS1 and BUS2 on the VF701 network card are used for checking the network status; they serve a redundant purpose. The OS clock refers to the clock of the operating system.
The time of historical reports, the time of trend lines, and the time of reports are all based on this time.
BUS1 and BUS2 cannot intersect; they should be connected to their respective switches separately. The clock can synchronize the CP and various operation stations.
It must not be connected in reverse. I have made this mistake before; the control station kept giving alerts about system communication failures. 3# hallon520
I suggest you first look into the principles of computer control and control engineering; the most important thing is to understand the concept of a framework as well as the purpose of control systems. By studying more specifically, one can target things more precisely. 1# hallon520