CN110639819A - Control method of linear sorting machine - Google Patents

Abstract

The invention discloses a control method of a linear sorting machine, which comprises the following steps: the photoelectric sensor senses goods and sends serial numbers to the DWS system; a DWS system acquires a bar code; after acquiring the bar code, the DWS system requests the WMS warehouse management system to return a sorting port of the goods and add serial number for binding; the DWS system sends the sorting port and serial number of the goods to the PLC; and the PLC controller executes the sorting work after acquiring the sorting port and the serial number. The serial number is sent to the DWS, the DWS requests the server to add the serial number to a sorting port returning the goods for binding after acquiring the bar code, the sorting port taken by the PLC is always corresponding to the goods, errors can be avoided, the goods are only obtained one by one and enter an abnormal sorting port even if the network is delayed, the PLC does not need to set waiting time, and the time is saved by a mode that a client sends a message, the WMS is not needed, the flow steps are reduced, the communication is reduced, and the abnormal communication risk is reduced.

Description

Control method of linear sorting machine

Technical Field

The invention relates to a control method of a linear sorting machine, and belongs to the technical field of control equipment of linear sorting machines.

Background

The traditional method is to acquire bar codes, and when the network is delayed, a sorting port of a former goods is bound with a latter goods, so that the latter goods are sorted wrongly. And the time for DWS to acquire the bar code cannot be determined, and the PLC sets a very long overtime time in a polling mode, so that the beat is slow, and the sorting efficiency is low.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: a control method of a linear sorting machine is provided to solve the problems in the prior art.

The technical scheme adopted by the invention is as follows: a method of controlling a linear sorter, the method comprising the steps of:

(1) the photoelectric sensor senses goods and sends serial numbers to the DWS system;

(2) a DWS system acquires a bar code;

(3) after acquiring the bar code, the DWS system requests the WMS warehouse management system to return a sorting port of the goods and add serial number for binding;

(4) the DWS system sends the sorting port and serial number of the goods to the PLC;

(5) and the PLC controller executes the sorting work after acquiring the sorting port and the serial number.

The invention has the beneficial effects that: compared with the prior art, the serial number is sent to the DWS, the DWS requests the server after acquiring the bar code, the serial number is added to the sorting port returning the goods for binding, the sorting port taken by the PLC is always corresponding to the goods, errors can be avoided, even if the network is delayed, only one sorting port is obtained and enters an abnormal sorting port, the PLC does not need to set waiting time, the time is saved in a mode that a client sends a message, the WMS is not needed, the flow steps are reduced, the communication is reduced, and the communication abnormal risk is reduced.

Drawings

FIG. 1 is a schematic diagram of a prior art control flow;

fig. 2 is a control flow diagram of the present invention.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

Example 1: as shown in fig. 1-2, a control method of a linear sorting machine includes a control device, the control device includes a photoelectric sensor, a DWS system, a PLC controller and a WMS warehouse management system, the photoelectric sensor is connected to the DWS system, the DWS system is connected to the PLC controller and the WMS warehouse management system, the PLC controller is responsible for sorting control work of the linear sorting machine, and the control method includes the following steps:

(1) the photoelectric sensor senses goods and sends serial numbers to the DWS system;

(2) a DWS system acquires a bar code;

(3) after acquiring the bar code, the DWS system requests the WMS warehouse management system to return a sorting port of the goods and add serial number for binding;

(4) the DWS system sends the sorting port and serial number of the goods to the PLC;

(5) and the PLC controller executes the sorting work after acquiring the sorting port and the serial number.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.

Claims (1)

1. A control method of a linear sorting machine is characterized in that: the method comprises the following steps:

(1) the photoelectric sensor senses goods and sends serial numbers to the DWS system;

(2) a DWS system acquires a bar code;

(3) after acquiring the bar code, the DWS system requests the WMS warehouse management system to return a sorting port of the goods and add serial number for binding;

(4) the DWS system sends the sorting port and serial number of the goods to the PLC;

(5) and the PLC controller executes the sorting work after acquiring the sorting port and the serial number.

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