Based on the concept of full integration and automation, the DCS system is designed according to the execution layer, control layer, operation layer, and information layer. The DCS system serves as the control core, and various on-site instruments are unified and integrated under the system platform through relevant communication interfaces, achieving lossless data collection and transmission. Instrument calibration settings are completed with one click, and information interfaces are reserved upwards, preparing for future information upgrades of the enterprise.
This example is applied to a certain oil and fat group in Hebei. The factory area is divided into two main workshops and two auxiliary workshops. The two main workshops are networked in one network, and the moisture meter, bulk grain scale, electricity meters in each workshop, frequency converter, etc. are divided into several groups. They are connected to the system through MODBUS network, and the material level sensor is connected to the system through PROFINET network. There are two operation terminals configured on site to facilitate on-site operators to set and modify parameters, The central control room is equipped with a server for data collection, report processing, etc. Two operator stations are configured to operate the two main workshops respectively. In addition, two large screen displays are configured to visually display real-time process production processes.
Since the project was put into operation, it has been running stably and reliably, and has been highly praised by users for its user-friendly operation.