The MES system is located at the execution layer between the planning layer and on-site production. It is a production and manufacturing management system based on planning, execution, and control. It needs to process production and management information during the production process, and convert, process, and transmit production process information. Therefore, it is necessary to achieve connection and data collection with lower level production equipment.

WoShu Intelligence in the Production Process IndustryMESDuring project data collection and equipment connection, it was found that many manufacturing enterprises currently have a large number of equipment, and old and new equipment are mixed, with different brand types, diverse communication methods, and large data collection volumes, resulting in a production process industryMESThe data collection of the system has become very complex.

MES system data collection method

The MES system collects data in both active and interactive ways, with active data being accessed by the MES system itselfPLCofCPURelated memory area(This memory area has been communicated by both parties as a data storage device)Another type isMESThe system sends a data communication request,PLCSend the data in the prescribed format toMESSystem.

MES system data collection

1MESsystem equipmentPLCdata collection

The MES system is directly connected to the equipment, mainly to do a good job in software and hardware interface communication, and to communicate withPLCCommunication can transmit data throughPLCTransfer to third-party devices or inMESandPLCAdd SCADA between them(Data Collection and Monitoring Control System)To seeMESThe communication protocol of the system, for automated production lines or intelligent devices with network interfaces, the system directly communicates with the devices through the networkPLC(Programmable Logic Controller)By exchanging data, the working status of the production line or equipment can be collected.

At the same time, the upper level production management realizes monitoring of the lower level equipment, making workshop management transparent and obtaining relevant production information, such as production quantity, speed, downtime, and time. This can form an intuitive and visual graphical interface, providing real-time on-site information for management personnel and effective assistance for maintenance engineers to quickly locate and analyze on-site faults and determine solutions.

2. The MES system collects data through the installation of sensors on equipment

Cannot connectPLCThe device needs to be equipped with speed and quantity sensors to collect operating status. The process production environment has strict requirements for temperature, humidity, etc., and its collection mode mainly includes temperature and humidity sensors. Equipment auxiliary collection requires sensors, etc. The sensors used in wireless data acquisition cards, gateways, etc. are generally reflective infrared sensors or reflective infrared sensors.

3MESReceive barcode scanner orRFIDSent data

Barcode scanning is commonly used in warehouse management in manufacturing enterprisesWIFIIn the network environment, the management of production materials such as product name, quantity, batch, production date, warehouse location, etc. is widely used;RFIDGenerally used for on-site logistics management, such as semi-finished product quantity, finished product storage location, semi-finished product name, processing material number, semi-finished product location, start time, end time, etc.