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Wiki source code of 8 OPC tool

Version 18.1 by Theodore Xu on 2023/09/07 11:05
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1 = **Introduction** =
2
3 **Open Platform Communications (OPC) **is a series of standards and specifications for industrial telecommunication. They are based on **Object Linking and Embedding (OLE) for process control**.
4
5 WECON provides **OPC Data Access(OPC DA)** for communicating real-time data from data acquisition devices, which is V-Box.
6
7 = **Premise** =
8
9 Due to OPC is based on Microsoft's COM (COmponent Model), and OPC's remote communication relies on Microsoft's DCOM (Distribute COM), and security is based on Microsoft's Windows security settings. About how to setup the DCOM on Windows PC, please refer to the following two links:
10
11 1)[[ DCOM for Windows 7,10, & Server 2008R2 and Newer>>https://www.softwaretoolbox.com/dcom/html/dcom_for_windows_7-_10-_-_server_2008r2.html]]
12
13 2) [[INSTALLING OPC CORE COMPONENTS ON WINDOWS 8>>https://www.aggsoft.com/opc-data-logger/tutorials/dcom-opc-config-windows-8-2012-1.htm]]
14
15 = **Basic configuration** =
16
17 V-Box pushes the data source to other OPC Clients through OPC tool, such as SCADA software, CFM software, ERP/MES systems, etc.
18
19 == **Login interface** ==
20
21 {{info}}
22 **✎Note:** Because now all the tools are integrated into the V-NET Client, please login into the V-NET Client software to find OPC tool.
23 {{/info}}
24
25 (% style="text-align:center" %)
26 [[image:WheretofindOPC.png]]
27
28 (% style="text-align:center" %)
29 [[image:OPCLogin.png]]
30
31 **Interface function:**
32
33 1. Use the sqlite database to record the users who have successfully logged in. According to the login time, they are arranged in the user name drop-down box from large to small.
34 1. Remember password: use DES secondary encryption, the secret key is CPUID and network card MAC address respectively.
35 1. Configure the server address, and the software restart is required for the configuration to take effect.
36
37 == **Server setting** ==
38
39 The default server address is the V-NET monitoring address. When deploying a private cloud, connect to the corresponding network address. After configuring the server address, the OPC Tool restart is required to take effect.
40
41 (% style="text-align:center" %)
42 [[image:12-2 1.png||class="img-thumbnail"]]
43
44 After configuring the server address, the OPC Tool restart is required to take effect. 
45
46 (% style="text-align:center" %)
47 [[image:12-2.png]]
48
49 1. **About.** Software version information.
50 1. **Settings.** To set the server address settings.
51 1. **Logout. **Log out of the current account.
52 1. **Exit. **Exit the software.
53
54 At present, Wecon has three servers. Please enter the corresponding server address.
55
56 1. **China:http:~/~/api.v-box.net**
57 1. **Asean:http:~/~/api.asean.v-box.net**
58 1. **Europe:http:~/~/api.eu.v-box.net**
59
60 == **Configured successfully** ==
61
62 After the user logs in successfully, the OPC SERVER is started. As shown below.
63
64 (% style="text-align:center" %)
65 [[image:12-3.png||height="138" width="595" class="img-thumbnail"]]
66
67 (% class="wikigeneratedid" %)
68 **✎Note:** When using the OPC function, run the OPC Tool software.
69
70 = **Example** =
71
72 (% class="lead" %)
73 **The precondition is to use the OPC Server and OPC Client on the same PC.**
74
75 == **Run the OPC tool** ==
76
77 (% style="text-align:center" %)
78 [[image:12-3 2.png||class="img-thumbnail"]]
79
80 == **Create OPC device** ：[[Download>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Software/Kepware-OPCClient.zip]]. ==
81
82 The following example is taking **OPC Quick Client.exe** tool for demonstration.
83
84 {{info}}
85 ✎Note: If having trouble of "Failed to connect server" or not able to find V-BOX.OPCSERVER.DLL in Server Properties, please go to the V-NET Client installation path to install the necessary OPC runtime environment.
86 {{/info}}
87
88 (% style="text-align:center" %)
89 [[image:OPCruntimelocation.png]]
90
91 **(1)** Run** "OPC Quick Client.exe"**
92
93 (% style="text-align:center" %)
94 [[image:12-4.png||class="img-thumbnail"]]
95
96 **(2) **Run V-BOX OPC tool and set corresponding server
97
98 (% style="text-align:center" %)
99 [[image:12-5.png||class="img-thumbnail"]]
100
101 (% style="text-align:center" %)
102 [[image:12-2.png]]
103
104 **(3) Select "New Server Connection" and select "V-BOX.OPCSERVER DLL"**
105
106 (% style="text-align:center" %)
107 [[image:12-6.png||class="img-thumbnail"]]
108
109 (% style="text-align:center" %)
110 [[image:12-7.png||class="img-thumbnail"]]
111
112 (% style="text-align:center" %)
113 [[image:12-8.png||class="img-thumbnail"]]
114
115 **(4) **Add a new group, set the group name according to your needs.
116
117 (% style="text-align:center" %)
118 [[image:12-9.png||class="img-thumbnail"]]
119
120 **(5)** Add a new item for the group.
121
122 (% style="text-align:center" %)
123 [[image:12-10.png||class="img-thumbnail"]]
124
125 **(6) **Select corresponding V-BOX and monitor point. Double click it to add Item.
126
127 (% style="text-align:center" %)
128 [[image:12-11.png||class="img-thumbnail"]]
129
130 Then this Item value will display as below.
131
132 (% style="text-align:center" %)
133 [[image:12-12.png||class="img-thumbnail"]]
134
135 Right-click the item, and select "Synchronous Write" to change the value of item.
136
137 (% style="text-align:center" %)
138 [[image:12-13.png||class="img-thumbnail"]]
139
140 {{info}}
141 **✎Note:** After the OPC tool is booted up, the number of real-time monitoring tags would not dynamically increase or decrease if there are some changes on server configuration. Only those values of the existing monitoring points when the OPC starts will be updated in real time.
142 {{/info}}