NOTE: This setting is necessary for the OPCENUM.EXE to function. Check the Remote Access box for ANONYMOUS LGOIN and click OK Click Edit Limits button to edit Access Permissions to change the access limits.ħ. Go to the COM Security tab and note these are the four permission configurations that we will have to edit:Ħ. Right click on My Computer in the pane on the right and select Properties:ĥ. Click on Computers under Component Services to expand it.Ĥ. Click on Component Services under the Console Root to expand it.ģ. Go to Run and type DCOMCnfg and click on OKĢ. (Excerpt from OPC Foundation paper: Using OPC via DCOM with Microsoft Windows XP Service Pack 2)įollow these steps to configure the DCOM machine default settings for OPCĬommunications using Windows XP Service Pack 2:ġ. If there is a firewall between the two computers, simply add the interface EXE, OPCENUM.exe and any other OPC Client and OPC Servers that you want to communicate with to the exception list of the firewall.Īdd Port named DCOM, port number 135, and TCP type to the exception list: This article was written for Windows XP SP2 users but it should also be relevant for Windows Vista users. This article will cover setting up DCOM for OPC interfaces to work over networks. Q10834 - HOWTO: Setting up DCOM for OPC Interfaces Home : Setting up DCOM for OPC Interfaces
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