Distributed Monitoring System Based on HMI Builder Configuration

Author: Lu Chunli guide: Dong Lihua Beijing Kunlun aspect Technology Development Co., Ltd.
1.1 Introduction

HMIBuilder configuration software has been successfully applied to data acquisition and system monitoring in the fields of power, petroleum, building, transportation and factory automation. The HMIBuilder Universal System is a set of industrial distributed configuration software platform that can run on the PC-based platform at the level of the monitoring layer of the automatic control system. It uses a flexible configuration method to provide users with the ability to quickly build industrial automatic control and monitoring systems. HMIBuilder configuration software not only supports various industrial control devices and common communication protocols, but also provides distributed network data management functions. This article mainly summarizes the distributed model of the HMI Builder system, analyzes the software distributed features, and shares the HMI Builder based human-machine interface distributed monitoring example.

1.2 Analysis of HMIBuilder Distributed Model
1. Real-time information sharing (for View)

Mode 1:

Figure 1.2.1 Real-time information sharing mode
Note: The "blue dotted arrow" is the direction of data traffic.
The "black solid line" is the actual connection line of the device.
The red part is two nodes (Node1, Node2)
Nodes PLC1 and PLC2 are virtual mappings of hardware devices.
Illustration: The trend of data flow shows that PLC1 and PLC2 are transferred to PC (Node1) and PC (Node2) via fieldbus, and two PCs are installed with HMI Builder configuration software. PC (Node1) transfers PLC1 data via Industrial Ethernet. PC (Node2) and PC (Node2) transfer PLC2 data to PC (Node1) to achieve real-time information sharing. The two nodes can be displayed through the View module in HMI Builder.

Mode 2:


Figure 1.2.2 Real-time information sharing mode II

Illustration: Node 1 and Node 2 are not displayed but are displayed via Node 3

2. Historical data storage

Mode 1:


Figure 1.2.3 Historical data storage mode

Diagram: Two nodes can be used as storage servers to store data for PLC1 and PLC2, respectively

Mode 2:


Figure 1.2.4 Historical Data Storage Mode II

Diagram: Both nodes do not store data. Instead, node 3 is used as a save server for data storage.

Alarm information

Mode 1:


Figure 1.2.5 Alarm Information Mode 1

Graphic: Same as historical data storage.

Mode 2:


Figure 1.2.6 Alarm Information Mode 2

Graphic: Same as historical data storage.

4. School hours


Figure 1.2.7 Hours

Illustration: Node 1 is set as the time server in HMI Builder. The system transmits the current time to HMI Builder. HMI Builder transmits the information to other nodes through Industrial Ethernet. HMI Builder transfers the information to the system on other nodes to achieve time synchronization with Node 1. .

5. Dual-network redundancy


Figure 1.2.8 Dual Network Redundancy

Illustration: IP addresses and masks for A and B networks need to be set in HMI Builder. Note that these two networks should belong to different network segments. For example, if the A network is 192.168.xx, it is better to set B network to 10.xxx.

6. Web browsing


Figure 1.2.9 Web browsing

Illustration: HMI Builder itself embeds a web server, sets node 3 as a web server, and on other nodes, it can view the screen of node 3 through a local area network browser such as Internet Explorer. The HMI Builder's web server supports the Internet and Intranet, and the WAN client can view the node through IE. 3 screens.

1.3 Analysis of HMIBuilder Distributed Features
1. Distributed Management, Configuration, and Monitoring

As shown below:


Figure 1.3.1 Distributed Network Architecture
a, In the network architecture, nodes can be classified according to functions and implement a distributed architecture. Can be used as a background machine, workstation, save server, alarm server b, multiple back-end machines and workstations to achieve load sharing. c, according to the IP division, to achieve a multi-layer monitoring architecture. 2. Application of soft bus technology


As shown below:
a, by the HMIBuilder SCADA module, through the Industrial Ethernet, the physical nodes are connected to form a soft bus. b. Each node is located on the soft bus. There is no difference between each function module running on each node.

Figure 1.3.2 Soft Bus Technology Application
3. Support Web browsing a, embedded support WebServer, allowing users to view the HMI Builder's work screen through the browser, and the screen, function and the local configuration software running screen and function no difference. b, support for local area network, wide area network IE browsing, you can traverse the firewall.
1.4 HMIBuilder Distributed Monitoring Example

Based on industrial Ethernet, HMIBuilder's powerful distributed network features through innovative soft-bus technology are demonstrated through convenient, flexible and intuitive user interaction configuration, support for multiple network topologies, and support for multiple types of network nodes. The functions such as data sharing, system load sharing, and multiple redundant backups are realized, distributed configuration and monitoring are completed, and high-reliability real-time monitoring and historical information network sharing are realized.
In the industrial automation control field SCADA system, we can be divided into on-site acquisition layer, on-site control layer, local operation layer, and center management layer, and each layer has a network to connect. The man-machine interface is at the core position of the current management and control integration site. It connects to the field bus to complete the on-site operation and management of the upper level bus logic control system. At the same time, it is responsible for uploading the site data and uploading the data that the center management cares about. At the same time, with the wide application of industrial Ethernet, the networking of SCADA systems has become a trend, bringing an application environment for distribution.
Figure 1.4.1 is an architecture diagram of a human-machine interface distributed monitoring system based on HMI Builder. Among them, the local management site, with the HMI system as the core, has control and execution parts. Then, through field management, that is, the orange module part, based on the soft bus technology using distributed monitoring software HMI Buider, equipped with different network nodes, load sharing, and managing multiple local sites. Then, in a distributed system, we configure a node as HMIBuilder Web Server to implement remote IE browsing control.


Figure 1.4.1 HMIBuilder Distributed Monitoring System Architecture
1.5 Conclusion

HMIBuilder distributed network architecture has been widely recognized by experts in the industry, and its in-depth application of reliability and stability in the field of industrial automation has been proven.

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