opc datahub

Opcautomation.opcserver Clsopcserver =Newopcautomation.opcserver (); Opcgroup clsopcgroup;opcgroups Clsopcgroups;opcitem clsopcitem;opcitem[] AllOPCItem; Boolean Bolconnect () {//return true; Try { if(Clsopcgroup = =NULL) {Clsopcserver=NewOpcserver (); T.elapsed+=NewSystem.Timers.ElapsedEventHandler (theout);//execution of events at time of arrival;T.autoreset =false;//Whether the setting is executed once (false) or always executed (true);t.enabled =true;//wh

Iot framework ServerSuperIO tutorial-19. device drivers and OPC Client Support persistence of mysql, oracle, sqlite, and sqlserver. V3.6.4 released, sqlite persistent 19. The device driver and OPC Client Support persistence of mysql, oracle, sqlite, and sqlserver. 19.1 Overview ServerSuperIO supports writing data collected by device drivers and OPC clients to mys

Install OPC Server 1. software to be installed Kepserverex_opc, Microsoft SQL Server 2005、dotnetfx35sp1.exe (freamework 3.520.20.iis6?opcserversimulater=toolboxc#+e.exe (OPC softing)Ii. installation sequence First install the industrial control software IIS6 --- kepserverex_opc (configure kepw) --- freamework 3.5 --- Microsoft SQL Server 2005 --- opcserversimulater---toolboxc#+e.exe (

Collation PreviousArticleThis article introduces the advanced copy feature of the storage system and briefly introduces several different methods of advanced copy. They are equivalent copy (EC), one point copy (OPC), snapopc +, and quickopc. This article will continue to explain one point copy (OPC) in depth ). Body One point copy (OPC), which differs from pee

OSIsoft pi opc da Interface Remote Stack Buffer Overflow Vulnerability Release date:Updated on: Affected Systems:Osisoft pi opc da Interface Description:--------------------------------------------------------------------------------Bugtraq id: 54609Cve id: CVE-2012-3008 Pi opc da Interface can be used to transmit data in the

I. Operating environment: WIN7 (OPC interface under the WIN_XP configuration need to install plug-ins, sorry not to fix, now only the Win7 system 32 bit under the tutorial)Because OPC (OLE for Process Control) is based on Microsoft's COM (COmponent Model), and OPC's remote communication relies on Microsoft's DCOM (distribute COM), The security side relies on Microsof's Windows security settings.By communica

When you are doing OPC communication, you often encounter two situations:1) When using a opcclient to connect multiple opcserver on a remote computer on the same computer, one of the opcserver is found to be unobstructed, but the other opcserver do not work anyway. Do not know how to locate the problem? 2) Multiple manufacturers of opcclient connected to the same computer on the opcserver, found some opcclient pass, some do not pass, some can obtain d