opc

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Serialization issue with OPC XML DA Server: The type <ArrayType> may not be used in this context

I\'m trying to build a demonstrative OPC XML DA Server using C#. Developement is underway, but i am stuck on a serialization issue concerning arrays. Apparently, when I try to set ItemProperty.Value ([详细]

2023-04-03 10:33 分类：问答
Specify Editors in Mercurial

In general, if I\'ve got a custom file of type W and want to use custom application/ed开发者_C百科itor X to open/view it how do i set up Hg to call the application X when i want to edit/view the file?[详细]

2023-03-25 12:14 分类：问答
How to get started developing an OPC Xi (.NET 3.0 WCF Services) Server (Service)

I would like to implement an OPC Server using the latest standard version: OPC Xi. My purpose is not providing a service for real usage, I just would like to develop a finctional server returning data[详细]

2023-03-09 16:03 分类：问答
OPC server access remotely using OPCDA.NET tools

I am deve开发者_如何学Cloping OPC Client in windows C#. I have developed the code and reading OPC Items on Sampling as well as event based (OnDataChange). When I am[详细]

2023-03-05 04:18 分类：问答
Create an OPC client with OpenScada UTGARD

I´ve connected a PLC to Matrikon opc universal server, now my task is to connect the OPC server to a client based in Java. Im using jinterop libraries and i think utgard would be really useful for me[详细]

2023-02-28 10:15 分类：问答
Good open source OPC software [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-02-22 18:52 分类：问答
What is a Historian?

What is the function of a historian in terms of 开发者_开发百科OPC and PLC?Based upon your tags opc and plc, you\'re refering to Historian in the SCADA context.[详细]

2023-02-22 14:54 分类：问答
opc, server not connect

I need to realize OPC server, on Windows XP. I download OPC library, and OPC cl开发者_运维问答ient (application not library). I realize my OPC server, when i use client on my machine all runs normally[详细]

2023-02-18 23:11 分类：问答
MIDL Compiler error: MIDL

When I use MIDL to compile a IDL file to .h and .c, I get a error said: midl : command line error MIDL1004 : cannot execute C preprocessor cl.exe.[详细]

2023-02-12 20:50 分类：问答
What do I need to create simple C# app which uses OPC?

I need to write a simple c# app which commun开发者_JS百科icates with a Siemens S7 via OPC. It just needs to query single inputs and set single outputs.[详细]

2023-02-12 20:11 分类：问答