The natural gas industry, primarily focused on urban pipeline gas supply
Thread Content
:(It seems there are very few instruments; there are no instrument numbers in the SCADA system, nor on site, and the PLC data has not yet been imported into the computer. Is this the standard practice in the natural gas supply industry?)
It can only be said that the standards used during the initial design phase, drawing review, design briefings, and construction inspection were far too low! I can only go and look through the blueprints! Lack of professionalism will lead to many problems later on!
There was no such position as an instrument technician in the company before; when I asked about it, I was told that there was no relevant information available :(. Moreover, I’m not familiar with SCADA yet – can SCADA be used to access the system and make adjustments to the instruments, just like DCS?
Which instruments do you mean for setting? What settings need to be made?
I don’t know anything about things like pressure, temperature, flow rate, or the set ranges in the system
It should be possible. I’m not very familiar with SCADA – does it work in the same way as DCS systems, with a CPU and various cards? You’re referring to system configuration. However, it is not possible to directly set parameters for the field instruments through the system.
A lot of the data from SCADA is transmitted via GPRS; it’s not possible to make changes directly from the SCADA system. Moreover, there are no backups available for PLCs and similar devices at the gate stations, so it’s unclear how to communicate with them – it’s really frustrating
It’s really a headache! What is the model of the PLC for the gate station you mentioned?
It is a system developed by a domestic manufacturer, using someone else’s PLC
In the natural gas industry, the various facilities are spread out across different locations, and each facility has relatively few instruments; as a result, some systems do not have instrument numbers； However, the SCADA system has instrument numbers in its backend; the frontend only provides simple operations and does not display these instrument numbers ； Indeed, the data of SCADA systems comes from the control and metering systems at various sites on-site, and is transmitted through various communication methods ； Various instrument parameters (pressure, temperature, flow rate, etc.) are installed in the control and measurement systems at various sites on-site; in the natural gas industry, these are usually provided by the manufacturers.
So now there’s a package, but no information available