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Communication problems between OPC Server and remote OPC client.

Created by: adam_son at: 1/27/2009 11:55 PM (3 Replies)

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1/27/2009 11:55 PM

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adam_son

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Hello everybody.
Problem description:
I’m using following hardware and software:
Hardware:
SIMATIC MICROBOX PC (industrial PC) with OPCServer.
PC where OPC client is running.

Software:
Industrial PC: windows XP Embedded SP2 , NETFramework 1.1 , SIMATIC NET (OPC SERVER)

PC : Windows XP SP3 ; VB application (using Netframework 3.5) made in VS2008.

Two computers are in local network (connected by switch) , working in the same Workgroup.

DCOM configuration was done according to SIMATICNET specification. Communication between OPC server and remote OPC client (for tests I used OPC Scout) was tested. So I’m sure the DCOM configuration is OK on both computers.

When I’m using VB application with function GetOPCServers I get the following massages in MsgBox:

Error H_RESULT E_FAIL has been returned from a call to a COM component.
ErrNr. -2147467259
Source: Interop.OPCSiemensDAAutomation.

Application also generates a file (SOPCDAAUTO_ERR) where there can be read following messages:

Line No

Time

TID

Description

00000001	18:08:04,302	0974	***	TRACEEVENT IS CREATED
00000002	18:08:05,273	0974	***	TRACE IS INITIALIZED
00000003	18:08:06,234	0974	->	DLL_PROCESS_ATTACH
00000004	18:08:07,186	0974	<-	DLL_PROCESS_ATTACH
00000005	18:08:17,711	0974	ERR	CreateRemoteOPCBrowser on Node: '192.168.57.2' failed [hr=0x80070005]
00000006	18:08:18,432	0974	ERR	'RegConnectRegistry' OPCAutoServer::GetOPCServers, [dwR=0x00000005]
00000007	18:08:24,951	0974	->	DLL_PROCESS_DETACH
00000008	18:08:25,923	0974	<-	DLL_PROCESS_DETACH
00000009	18:08:26,874	0974	***	TRACEEVENT IS DELETED
00000010	18:08:27,835	0974	***	TRACE IS UNINITIALIZED

Code sample:

Dim LocalServer As Object LocalServer = MyOPCServer.GetOPCServers(TextBox1_MachineName.Text) Dim tmpServer For Each tmpServer In LocalServer Call ComboBox1_ServerList.Items.Add(tmpServer

Any Ideas where the bug can be?

1/28/2009 12:06 PM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Hello adam_son, well... this is not really easy to answer but I guess there are two points to check for this problem. 1. The version of the SIMATIC NET you use, as you mentioned you use the VS 2008, this requires, as it is being tested, the Edition 2008 of SIMATIC NET, do you use this version? 2. The message you receive by windows shows that the application you are about to use does not have sufficient rights to do the requested job. To check the DCOM configuration I would recommend the use of: OPC Foundation white paper This document shows you maybe some settings you did not try yet. (At least I hope so) Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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1/28/2009 3:28 PM	Rate (0)
adam_son Posts: 4 Rating: (0)	Thank you for reply. On Simatic Microbox PC is installed SIMATICNET PC/Software Edition 2006. But I don't understand what relation it has with VS2008? The VB application that is made is running on remote PC as OPC client. About DCOM settings: I found out in some SIMATIC NET specification that if computers works in a workgroup there can notbe made any authentication. So it means that in DCOM settings authenticantion level should be set to NONE on both sides. Is it true?
adam_son Posts: 4 Rating: (0)	Last edited by: adam_son at: 1/28/2009 3:59 PM
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2/5/2009 1:41 AM	Rate (0)
Mark CH Regular Member Joined: 4/20/2007 Last visit: 11/15/2024 Posts: 29 Rating: (2)	Dear all: I like to use the another soft of OPC client, then connect to the SIMATIC NET OPC server. if you have been successful, the OPC server is good .don't modify DCOM settings..

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Created by: adam_son at: 1/27/2009 11:55 PM (3 Replies)

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Last edited by: adam_son at: 1/28/2009 3:59 PM

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