After the ASSY 11993R2 selects automatic metering is complete, the operator clicks on the desired metering well button in the metering control table, confirms it and then the host computer sends out a command, and the SunyPLC250 Automatic will automatically meter the well. Measurement, first of all, its three-way valve to switch to the measurement position, to the separator into the liquid, when the liquid level reaches the measurement of the lower limit began to time, when the liquid level rises further, reaching the measurement of the upper limit, write down the measurement of time, and then open the drain valve, close the separator gas outlet valve, start draining, the three-way valve to switch to the production position of the measurement of the completion of the three-way valve.

The operation and management of the ASSY 11993R2 is mainly through the SunyTech industrial control application software to achieve the human-machine interface function. Through monitoring the working condition of the metering station, the operator can monitor the whole process of automatic metering and control which wells are involved in automatic metering, as well as designate a single well to be designated for metering, etc. The HMI screen includes the general view of the metering station, the selection of automatic metering, and the designation of single-well metering. The metering station overview screen is used to monitor the real-time operation of the metering station (as shown in the figure below), the automatic metering screen is used to select and set the well number to participate in automatic metering, and the single-well metering screen is used to set the single well to be designated for metering.

The ASSY 11993R2 generates a daily report of the station’s metering data based on daily metering. The Ethernet module is configured to assist a system integrator (hereafter referred to as the “host computer”) with Ethernet communications. Our two cabinets in the system as a sub-station (server), the IP address and the number of computers to be accessed by the customer did not request in advance, the system integrator was also only obtained at that time. After arriving at the site, I firstly re-configured one of the CPU224s according to the customer’s request with the “Ethernet Wizard”.