This system can be used in paint, ink, food, beverage, chemical, pharmaceutical, etc. It needs to use a variety of liquid raw materials according to the formulation ratio of the industrial measurement and control of automated production. Strict control logic and procedures can improve labor productivity and reduce human errors and measurement errors. The system consists of four parts: electronic weighing and control devices, weighing control instruments, PLCs, and industrial computers. As shown below. l Electronic weighing and control devices generally refer to sensors, weighing barrels (tanks), feeding equipment (valves/pipe pumps, special fluid pumps, etc.). Generally, one weighing control instrument is connected to one electronic weighing and control device, and one electronic weighing and controlling device can correspond to one or more raw material barrels (cans) (generally, 1-18); PLC as the logic control core performs the weighing operation of the electronic scale according to the process recipe requirements; Industrial computer (completely compatible with general computer, more suitable for industrial harsh environment) as the upper computer is the operating terminal for human and machine dialogue, the main function is to monitor the operating status of the entire system mainly consisting of electronic scales, and to give the PLC orders and calibration Change parameters. System Features The main content of metrology software system 1. The metering control has manual, semi-automatic and fully automatic operation modes and can be switched at any time; 2. Recipe table: formula number, formula name, raw material bucket number, raw material name, measurement weight, can store more than 2000 kinds of formula; 3. Raw material table: raw material barrel number, raw material name, measurement level, drop, size supply, valve (or pump, etc.) switching time; 4. Dynamic metering program: Including the name of the metering institution, measurement time, settling time, output, and return to zero; 5.Measurement display main interface: contains the name of the measuring agency, the total weight of the measurement set, the actual total weight of the current measurement (dynamic display), the name of the material being measured, the set weight of the material currently measured, and the actual weight of the current measurement material ( Dynamic display); 6. Metering control main interface: Set the following button switches - metering start, metering stop, forced single step stop (skipping a certain kind of raw material metering), forced all stop (direct jump to the last end), metering (dosing) reset ( Return); 7. Statistical report on raw materials: It can count the consumption weight of some, some or all raw materials in the same day, the current month or a certain period of time; 8. Formulation production statistical report: It can count the weight of one, some or all of the formulas produced during the certain period of the day, the month or the month; the two measuring agencies 1# and 2# can separate or combine statistics; 9. There is an alarm for measuring the upper and lower limits of measurement, which is convenient for artificial compensation; 10. Level of user operation authority management: a. Super User - can set all functions to be adjusted; b. Recipe Manager - can only set recipes; c. System Maintenance Manager: only can modify measurement parameters such as load sensor, can not see To any formula information; The industrial computer can be compatible with any PC-Base industrial computer or commercial computer, laptop computer;
The structure of the host computer + PLC improves the reliability of the system. The host computer does not participate in the real-time control process of the PLC except for the initial process parameters and control instructions. Even if the host computer is offline, the PLC can successfully complete the current production tasks.
High-level language and assembly mixed programming under Windows operating system not only ensure the reliability of the system, but also facilitate the software upgrade;
Chinese (Simplified or Traditional) or English (according to requirements) friendly human-machine interface, the operation is very simple, only 1 hour can learn to operate;
Dynamic process flow display screen, the operator can visually monitor the entire batching control process through the color display, including the working status of the silo conveying equipment, the weighing data, the working status of the mixer and various process gate valves, etc.;
Parameter modification and function setting are more flexible, and the system is highly intelligent;
Production data can be stored on the hard disk;
Leave network ports;
The system can detect, display, store and print instantaneous signals, variables, parameters, etc. in real time.
With zero/tare rapid removal.
System can be set to prevent misuse and other functions;
With self-diagnosis function;
The measurement control error is ±0.25-0.5%. The measurement accuracy is related to the cost and the site conditions.
Taiwan's high-reliability industrial motherboards or IBM-compatible products (including video cards, 10/100M adaptive network card / watchdog circuit);
19-inch industrial reinforced chassis, can be on the 19-inch standard cabinet or into the piano console;
Pentium 300Mhz and above with low heat dissipation CPU (suitable for harsh industrial environments and long-term continuous operation);
High reliability and large capacity hard disk;
2M-256M memory can adapt;
15-inch Philiph flat color display;
Dust/waterproof keyboard
Supporting multiple circuit terminal board;