Honeywell Vertex M User Manual page 250

6. For adding tags, Matrikon OPC Explorer will display the list of available tags on the OPC DA
service in the Available Items panel. Selecting tags to monitor can be added to Tags to be
added panel by "drag and drop", right click, or selecting the tag and pressing the move
right arrow.
7. After adding tags to monitor, tags will be listed in with current state and value in the right
tag list panel.
DCOM Configuration
OPC DA using Microsoft™ DCOM technology may also be referred to as OPC DA Classic. OPC
DA Classic has encountered several security issues which has made it not recommended for
use if network security is vital for operation. To address security issues, Microsoft has made
patches available and security policy changes to improve DCOM security, which has made it
difficult to setup OPC DA Classic connections. If OPC DA client connections to the FactoryTalk
OPC DA server is not working, please review OPC DA DCOM support for your OPC DA client, in
addition, to network setup.
Here are some obvious connections items to check:
1. Make sure the User with matching password exist on the OPC DA client and server.
2. Make sure DCOM configuration is configured correctly on both the server and client.
Vertex M 250 User Manual