The wide application of feeding system and the rapid development of fieldbus technology, with interoperability, interchangeability, replaceability, expandability and multiple support for industrial computers. In terms of the function of dosage, it is required to realize more algorithms, achieve higher control objectives, and the dosage function is more integrated. The self-diagnostic function of the weighing control system requires perfect and accurate self-diagnostic function. In this case, the control of the automation level is higher and higher, from the classical PID regulation, feedback, feed-forward loop control gradually developed to the batch control, centralized control, object-oriented optimization control, artificial intelligence of the control of the control of the gradual development of multi-parameter multi-objective control, the correction, compensation, algorithms more and more to do a lot of detailed and accurate, and is particularly important. Dosing, and mixing object optimization control, adaptive control or artificial intelligence, through the computer centralized control system itself, no longer attached to other computer hardware. Control system composed of IPC and network communication, the requirements of the dosage equipment support is not only how powerful and rich in content, but also for its user with different objects redevelopment capabilities of the demand is becoming increasingly important. Batching machine supports a variety of popular high-level language, the user according to the different requirements of each special control object can realize their own control strategy, will provide an important means of industry-specific.

Feeding system adopts centralized/distributed structure, by the weighing controller and microcomputer monitoring station constitutes a centralized control system, using MB + network, a series of TSXMomentum connected to the CPU processor to achieve the data acquisition and control of field equipment. Ring Ethernet is used to realize the sharing between PLC and PLC and monitoring management level. TCP/IP protocol is used between the monitoring station and the server. The signal from the load cell of the field equipment is led to QuantumPLC through MB+ network, and then directly control the motor of the reactor at the site after CPU operation. On-site weighing hopper part, the weighing signal enters TSXMomentum through ISPMomentum weighing template by field bus, and then the signal is far transmitted to CPU through MB＋communication to complete the chain of weighing and precise control of kettle motor frequency.

(1) the scene intelligent weighing instrumentation commonly used, a variety of communication technologies and PLC interoperability interchangeable control, the scene can be touch screen can be automatically tare and other different weighing operations, such as touch screen failure in the case of intelligent weighing instrumentation can be replaced by the quantitative control, etc., to solve the need to replace each other's functions.

(2) digital DC speed control, inverter controller, soft start device, switching components in the reactor production process with the mixing quantitative weighing control, touch screen can be fine-tuned stirring inverter power, stirring motor rotates at a slight speed, the liquid material to get better mixing, will not be in the high-speed stirring under the destruction of the material's properties for low-speed inverter mixing and stirring of the dosage.

(3) Manual intervention is less and less, the operation point is more and more centralized, the operation mode is more and more software. Reaction vessel production dosage site can be added while reading the real-time display of the weight, while the mixing power display is also in the same monitoring position, easy to read different data at any time, saving time for manual intervention, the Dosage system for the man-made incorrect operation of self-correction, to solve the error in the process of wrong dosage.

(4) The function of the dosage control system is more and more to the comprehensive development, the role of CRT is getting stronger and stronger. Control system and dosage site in different offices can monitor the site dosage status, improve staff efficiency.