Electronic weighbridge is composed of industrial control machine, PLC, weighing terminal, frequency converter, vibration motor, mixer, sensor and other parts. Industrial control machine provides human-computer interaction interface, complete control information input, data management, data display, storage, statistics and reports and other functions, through the host keyboard input batching weight, according to the ratio of raw materials to generate the weight of various materials, through communication to the PLC. batching process, dynamic real-time monitoring, regular collection of each slave sent to the detection and control system of other switching quantities, real-time collection of each material weight signal and with the given signal, real-time collection of the weight signal and the control system of other switching quantities. The weight signal of each material is collected in real time and compared with the given signal to decide the next control program, and at the same time, the weight signal is transmitted to the upper computer.
020-34563445The electronic weighbridge consists of a weighing module and peripheral equipment (pre-dosing scale, post-dosing scale, material leveler). The electronic weighbridge serves as the human-machine interface of the whole system. It completes all the system parameters setting, process monitoring and data recording; the other one is used as a slave station, relying on the master station, in charge of data setting and process monitoring in the control room.
The on-site electronic weighbridge adopts sealed junction box, which is dust-proof and moisture-proof, and can ensure reliable signal transmission. The weighing instrument adopts special industrial process controller, which communicates with the central control room through RS-485 bus, and the electronic weighbridge can be independently controlled and PLC on-line control can be realized. Each valve position and unloader position signal detection, with no contact, anti-interference, anti-dust, moisture resistance. Electronic weighbridge silo bin level using heavy hammer type material level meter, can realize continuous bin level detection.
Electronic weighbridge has human-computer interaction, communication, display and storage, printing and other functions, and has data, graphic display, status monitoring, data input, information storage and other related operations of various functional screens. The electronic weighbridge system can realize real-time process data monitoring, simulation display of process flow, Electronic scale real-time data record access, operator privilege setting, process parameter setting, setting alarm for operation process events and switching between manual and automatic control. In the monitoring system, the on-site control weighing instrument displays real-time flow, load, totalized value, temperature, etc. The temperature is indicated by the on-site temperature display instrument, and the temperature indicator. Temperature indication through the field temperature display instrument, pressure indication through the field pressure display weighing instrument and the electronic scale current of the motor is transmitted to the centralized display in the control room through the field display instrument. Frequency converter regulation is equipped with automatic switching switch and communicates with the main control computer.
