CN101808082A - Device simulating method for supporting multi-protocol - Google Patents

Abstract

The invention relates to a method of equipment simulation software for supporting multi-protocol, which comprises the following steps of: 1. acquiring the base elements of equipment and generating the specific information of simulation equipment; 2. starting equipment simulation software to perform simulation initialization and obtain the specific information of all equipment to be simulated; 3. transmitting data in a work control system according to different passageways, and intercepting the data transmitted by the passageways with HOOK; and 4. analytically comparing the intercepted data with a protocol packet of the simulation equipment, and returning different simulation data to a work control platform aiming at the different data to realize the immediate simulation of the data. The method can automatically simulate the communication data of the equipment, can simulate the equipment data communication in different protocols, and can effectively improve the debugging efficiency and the developing efficiency of engineering developers.

Description

A kind of device simulating method of supporting multi-protocols

Technical field

The present invention relates to a kind of method of supporting the equipment simulation software of multi-protocols, especially can emulation Modbus agreement and the emulation mode of DL/T645 ammeter communication protocol.

Background technology

At present, engineering and technological development personnel are more and more to the use of simulation software, and simulation software is the real data situation of artificial site fully, and the accuracy that effectively reflects data is with regular.

(Modbus is a kind of communications protocol of MODICON company in exploitation at the embedded software of development support MODBUS agreement, be a kind of opening of widely being used at industrial circle, the network communication protocol of standard), for carrying out the communication debugging of equipment, normal serial communication software or the TCP/IP related commissioning software of adopting reads and writes data, and the back that reads and writes data often wants the developer according to the data value that returns actual measurement data to be calculated to obtain correct image data.Engineers and technicians are when the exploitation relative monitor system, and Chang Yinwei equipment can't not debugged automated software to the scene, influences the duration of project, increases the cost of project.

Only support an agreement or stipulations in the general simulation software, and in the automation project, usually have a lot of equipment will debug analysis and test, the user is if any the words of relevant simulation software, because of this software generally all can not be as communication and agreement expansion and self-defined, the user also will be switched in different software, the efficient of influence debugging.

Summary of the invention

Support single deficiency for overcoming above-mentioned simulation software agreement, the invention provides a kind of can automatic simulation equipment signal intelligence, conveniently carry out agreement and expand, increase related protocol and can reach the device simulating method of supporting a plurality of different agreement device emulation effects according to different agreements.

In order to achieve the above object, the technical solution adopted for the present invention to solve the technical problems is:

A kind of device simulating method of supporting multi-protocols may further comprise the steps:

Step 1 is gathered out the fundamental of equipment, generates the specifying information of emulator;

Step 2, the starting device simulation software carries out simulation initialisation, obtains the specifying information of the emulator that remains;

Step 3 sends data according to different passages, and utilizes HOOK to intercept and capture the transmission data of this passage in industrial control system;

Step 4 is analyzed comparison to the data of intercepting and capturing and the protocol package of this emulator, returns different emulated datas at different data and gives the industry control platform, realizes the instant emulation of data.

Step 3 of the present invention further comprises, according to the device address information and the reading of data number of the data message analysis data communication emulation that sends, data is returned to the buffering area of system by this form.

Step 3 further comprises, sends the industrial communication data by DCS in the industrial control system or SCADA systems soft ware.

Described industrial communication data comprise, read-write equipment parameter, real time data or diagnostic data message.

Step 3 comprises that further HOOK is used for the transmission of monitor data in system, and before these data arrive the final data processing procedure, obtains particular data.

Step 4 further comprises,

1) according to whether being belonged to the protocol data of supporting in the native system,, then point out the emulation failure, and the report user to append the corresponding protocol file as not supporting by the format analysis of intercepted data; Otherwise change step 2);

2) the data format protocol compliant form as analyzing carries out concrete analysis and determines to enter into the function corresponding code analysis stage current data format.

The present invention compared to existing technology, its beneficial effect is: can automatic simulation the communication data of equipment, can particularly in modbus and DT/L645 agreement, carry out the emulation that device data is communicated by letter in different agreements, can simulate communicating by letter of Modbus slave station and ammeter.Can return different message analysis data at different function identifiers, intercept the data in the passage, and these data are carried out protocal analysis, can effectively improve engineering development personnel's debugging and development efficiency.

Description of drawings

Fig. 1 is simulation flow figure of the present invention;

Fig. 2 is an emulation schematic diagram of the present invention.

Embodiment

The invention will be further described below in conjunction with Figure of description, but the scope of protection of present invention is not limited to the scope of embodiment statement.

A kind of device simulating method of supporting multi-protocols may further comprise the steps:

Step 1 is gathered out the fundamental of equipment, generates the specifying information of emulator;

Step 2, the starting device simulation software carries out simulation initialisation, obtains the specifying information of the emulator that remains;

Step 3 sends data according to different passages, and utilizes HOOK to intercept and capture the transmission data of this passage in industrial control system;

Step 4 is analyzed comparison to the data of intercepting and capturing and the protocol package of this emulator, returns different emulated datas at different data and gives the industry control platform, realizes the instant emulation of data.

Particularly, as shown in Figure 1, (Distributed ControlSystem is the abbreviation of scattered control system, and domestic general custom is called Distributed Control System by the DCS in the industrial control system.It is one, and what be made up of process control level and process monitoring level is the multi-level computer system of tie with the communication network) or SCADA (Supervisory Control And Data Acquisition system, be data acquisition and supervisor control) etc. systems soft ware send the industrial communication data, as the read-write equipment relevant parameter, obtain real time data, messages such as diagnostic data.

Simulation software is by HOOK (hook-hook, it is a link in the Message Processing, be used for the transmission of monitoring message in system, and before these message arrive final message processing procedure, handle some specific message) technology obtains this message from system, whether the format analysis according to this message belongs to the protocol massages of supporting in this software then, as not supporting that then point out the emulation failure, the report user will increase relevant operations such as document of agreement, meet certain protocol contents in this software as the data format of analyzing, then can point out is this protocol format, and current data format is carried out concrete analysis, determines it is what operation, as function code, whether types such as data area are correct, and whether the data in the transmission are correct, and whether check digit is correct etc., then can enter the concrete individual function code analysis phase after more than determining

As shown in Figure 2, analyze the device address of data communication emulation according to the data message that sends, data area reading of data number etc., and according to this form data are returned in the buffering area of system.

Claims (6)

1. device simulating method of supporting multi-protocols, this method step is as follows:

Step 1 is gathered out the fundamental of equipment, generates the specifying information of emulator;

Step 2, the starting device simulation software carries out simulation initialisation, obtains the specifying information of the emulator that remains;

Step 3 sends data according to different passages, and utilizes HOOK to intercept and capture the transmission data of this passage in industrial control system;

Step 4 is analyzed comparison to the data of intercepting and capturing and the protocol package of this emulator, returns different emulated datas at different data and gives the industry control platform, realizes the instant emulation of data.

2. the device simulating method of support multi-protocols according to claim 1, it is characterized in that, step 3 further comprises, according to the device address information and the reading of data number of the data message analysis data communication emulation that sends, data is returned to the buffering area of system by this form.

3. the device simulating method of support multi-protocols according to claim 2 is characterized in that, step 3 further comprises, sends the industrial communication data by DCS in the industrial control system or SCADA systems soft ware.

4. the device simulating method of support multi-protocols according to claim 3 is characterized in that, described industrial communication data comprise, read-write equipment parameter, real time data or diagnostic data message.

5. the device simulating method of support multi-protocols according to claim 1 is characterized in that, step 3 comprises that further HOOK is used for the transmission of monitor data in system, and before these data arrive the final data processing procedure, obtains particular data.

6. the device simulating method of support multi-protocols according to claim 1 is characterized in that, step 4 further comprises,

1) according to whether being belonged to the protocol data of supporting in the native system,, then point out the emulation failure, and the report user to append the corresponding protocol file as not supporting by the format analysis of intercepted data; Otherwise change step 2);

2) the data format protocol compliant form as analyzing carries out concrete analysis and determines to enter into the function corresponding code analysis stage current data format.

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