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The data interface provided by SAP PP-PI enables the user to set the information content and processing process according to the needs of the connected object, so that SAP ERP collects data from different production execution systems and production lines on-site.
Connection between business management and production execution system
There are three main types of connection:
Indirect methods Early applications are limited by the function of the equipment. The connection between the production execution system and the management control system is usually indirect. The PP-PI sends the process instruction including the process operation instruction to the specified computer terminal. The process instruction includes the production operation information such as the charged quantity and operation time. The operator must complete the production operation according to the instructions, collect relevant data, and enter the computer terminal after the process ends.
The disadvantages of manual intervention are: manual data entry is error-prone; information collected by operators is difficult to share in different systems; it is only applicable to manual operations, and the production process controlled by a distributed control system (DCS/PLC) is difficult to apply.
The middleware solves the inconsistency of heterogeneous system data caused by manual data entry through the middleware message system connection. The middleware system also provides the possibility that PP-PI can be connected to multiple systems simultaneously. For example, a single middleware system can be used. Connect PP-PI to different production execution systems.
Nevertheless, the main function of the middleware message system is to construct the information correlation between PP-PI and each different process, and the functions such as process data verification and instruction release time buffering cannot be completely implemented through the middleware system.
Process information management system Based on the middleware system, the process management system enhances the issuance of instructions and information verification functions. At the same time, the process control system does not provide a single connection tool. It can simultaneously serve the different connection forms mentioned above. Under an appropriate external system, the process information management system can provide complete and complex process control information services.
Applications
Using the technical means provided by SAP PP-PI, in actual applications, information connections between on-site control and ERP business systems can be established in different ways according to different management needs and production control systems.
First, the receipt of goods records
According to the company's need to report the number of goods received in a certain order in the order. Different factories have different operating conditions and equipment for this process, and some of them have a high degree of automation. When the goods are received, they can automatically obtain readings from the equipment container; some require the operator to read from the equipment control system (DCS), and then manually Type ERP system. PP-PI can apply different integration methods:
1. PP-PI creates a flow order for the WEB interface at the time of order creation and sends it to the operator's SAP client at the scheduled time. The goods receipt is read by the automation equipment. The operator reads the data from the DCS and types the process instruction sheet. The system periodically sends the flow into the order form as a process message back to the production order and records, and the inventory system completes the related movement of the goods.
2. PP-PI creates a process instruction at the time of order creation into the DCS/MES with OPC system interface. DCS/MES automatically generates a process message after completing the reading and sends it back to the system at the scheduled time.
3. PP-PI creates a process instruction at the time of order creation and sends it to the middleware system. The middleware system is responsible for distributing and collecting the returned process messages.
Second, the production line emergency alarm
One process in a product's production process needs to control the temperature regularly. When the temperature exceeds the preset threshold, the equipment management system triggers a specific event and enters the SAP system through OPCDataAccess. After the SAP system receives the alarm class information, it is scheduled. The destination sends the data contained in the alarm message to the SAP system and connects to the Email server and sends it to the relevant person in charge.
Third, test data records
A certain process in the production process needs to control and record quality indicators. Quality inspectors regularly receive inspection orders (process instruction orders) for different batches of products from computer terminals, and they are confirmed by digital signatures after they are completed. The system will send the inspection results to the SAP quality management module and product batch records at regular intervals. At the same time, the system is set up so that the relevant product can be stocked in the system through the quality inspection process confirmed by the signature.
SAP PP-PI provides information exchange between ERP system and other production management systems and on-site management. It provides a wealth of technical means and data pre-defined interfaces to enable users to more easily implement information system business planning layer and execution control layer. Integrated connection.
SAP is the world's leading provider of enterprise management software and collaborative commerce solutions. More than 80% of Fortune 500 companies use SAP Business Solutions. Com/china.
Connection between business management and production execution system
There are three main types of connection:
Indirect methods Early applications are limited by the function of the equipment. The connection between the production execution system and the management control system is usually indirect. The PP-PI sends the process instruction including the process operation instruction to the specified computer terminal. The process instruction includes the production operation information such as the charged quantity and operation time. The operator must complete the production operation according to the instructions, collect relevant data, and enter the computer terminal after the process ends.
The disadvantages of manual intervention are: manual data entry is error-prone; information collected by operators is difficult to share in different systems; it is only applicable to manual operations, and the production process controlled by a distributed control system (DCS/PLC) is difficult to apply.
The middleware solves the inconsistency of heterogeneous system data caused by manual data entry through the middleware message system connection. The middleware system also provides the possibility that PP-PI can be connected to multiple systems simultaneously. For example, a single middleware system can be used. Connect PP-PI to different production execution systems.
Nevertheless, the main function of the middleware message system is to construct the information correlation between PP-PI and each different process, and the functions such as process data verification and instruction release time buffering cannot be completely implemented through the middleware system.
Process information management system Based on the middleware system, the process management system enhances the issuance of instructions and information verification functions. At the same time, the process control system does not provide a single connection tool. It can simultaneously serve the different connection forms mentioned above. Under an appropriate external system, the process information management system can provide complete and complex process control information services.
Applications
Using the technical means provided by SAP PP-PI, in actual applications, information connections between on-site control and ERP business systems can be established in different ways according to different management needs and production control systems.
First, the receipt of goods records
According to the company's need to report the number of goods received in a certain order in the order. Different factories have different operating conditions and equipment for this process, and some of them have a high degree of automation. When the goods are received, they can automatically obtain readings from the equipment container; some require the operator to read from the equipment control system (DCS), and then manually Type ERP system. PP-PI can apply different integration methods:
1. PP-PI creates a flow order for the WEB interface at the time of order creation and sends it to the operator's SAP client at the scheduled time. The goods receipt is read by the automation equipment. The operator reads the data from the DCS and types the process instruction sheet. The system periodically sends the flow into the order form as a process message back to the production order and records, and the inventory system completes the related movement of the goods.
2. PP-PI creates a process instruction at the time of order creation into the DCS/MES with OPC system interface. DCS/MES automatically generates a process message after completing the reading and sends it back to the system at the scheduled time.
3. PP-PI creates a process instruction at the time of order creation and sends it to the middleware system. The middleware system is responsible for distributing and collecting the returned process messages.
Second, the production line emergency alarm
One process in a product's production process needs to control the temperature regularly. When the temperature exceeds the preset threshold, the equipment management system triggers a specific event and enters the SAP system through OPCDataAccess. After the SAP system receives the alarm class information, it is scheduled. The destination sends the data contained in the alarm message to the SAP system and connects to the Email server and sends it to the relevant person in charge.
Third, test data records
A certain process in the production process needs to control and record quality indicators. Quality inspectors regularly receive inspection orders (process instruction orders) for different batches of products from computer terminals, and they are confirmed by digital signatures after they are completed. The system will send the inspection results to the SAP quality management module and product batch records at regular intervals. At the same time, the system is set up so that the relevant product can be stocked in the system through the quality inspection process confirmed by the signature.
SAP PP-PI provides information exchange between ERP system and other production management systems and on-site management. It provides a wealth of technical means and data pre-defined interfaces to enable users to more easily implement information system business planning layer and execution control layer. Integrated connection.
SAP is the world's leading provider of enterprise management software and collaborative commerce solutions. More than 80% of Fortune 500 companies use SAP Business Solutions. Com/china.
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