PLC and upper computer WCS signal interactive verification method
A technology of interactive verification and bit computer, which is applied in the direction of program control, program control, and instruments in the sequence/logic controller, which can solve problems such as data delay, packet loss and confusion, and achieve the effect of maintaining equipment and solving equipment failures
Pending Publication Date: 2022-03-29
安歌科技(集团)股份有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Due to the phenomenon of network delay and packet loss in the network link, when the upper computer receives the data packet, the data may be several seconds later, resulting in data delay or packet loss disorder when the upper WCS communicates with the PLC. A method for interactive verification of PLC and host computer WCS signals is now proposed
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] refer to figure 2 , the present invention a kind of method for mutual verification of PLC and upper computer WCS signal, comprises the mutual verification of sending data phase, and the mutual verification of receiving data phase;
[0022] The interactive verification at the stage of sending data specifically includes the following steps:
[0023] S11. When the lower-level system collects barcode data or other size data at an interaction point, the lower-level system will trigger an accumulative calculator to accumulate and calculate according to the storage size of the data. The accumulated range is 1-65535. When the accumulated range is exceeded, return to the Accumulate from 1 to generate the unique serial number in the PLC of the lower system;
[0024] S12. Bind the unique serial number with the collected barcode data, send the bound data packet to the host computer through Socket, and at the same time as the data packet is sent, the PLC generates a time stamp and...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a PLC and upper computer WCS signal interaction verification method, which comprises the following steps: interaction verification in a data sending stage: S11, a lower system acquires data at an interaction point position, the lower system triggers an accumulation calculator, and a unique serial number in a PLC of the lower system is generated; s12, the unique serial number is bound with the collected data, a bound data packet is sent to an upper computer, the PLC generates a timestamp while the data packet is sent, and a WCS server of the upper computer receives the data; interactive verification in a data receiving stage: S21, after the upper computer feeds back the data to a PLC of a lower system for analysis, the upper computer returns a unique serial number analyzed by the PLC; and S22, after the unique serial number is analyzed by the PLC, a receiving timestamp is stamped on the received data, and the data receiving of the PLC is completed. When the communication information between the upper WCS and the PLC generates data delay, packet loss disorder, data delay and packet loss disorder, information tracking can be inquired, and the fault of interaction information between the PLC and the upper computer can be quickly eliminated.
Description
【Technical field】 [0001] The invention relates to the technical field of intelligent storage, in particular to a method for interactively verifying signals of a PLC and a host computer WCS. 【Background technique】 [0002] The way of interactive docking between PLC and upper computer WCS includes OPC UA, Socket and other Ethernet-based TCP / IP protocols. The network topology of the system is as follows: figure 1 As shown, the system composition includes the upper computer, the lower PLC controller, and the execution equipment includes conveyors, sorting line stackers and other execution equipment. [0003] Due to the phenomenon of network delay and packet loss in the network link, when the upper computer receives the data packet, the data may be several seconds later, resulting in data delay or packet loss disorder when the upper WCS communicates with the PLC. A method for interactive verification of PLC and host computer WCS signals is proposed. 【Content of invention】 [...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/1179
Inventor 姜跃君欧文兵
Owner 安歌科技(集团)股份有限公司