Posted: Wed Oct 21, 2009 5:35 am Post subject: Microbroker bridge to Message Broker
Newbie
Joined: 19 Oct 2009 Posts: 4 Location: United Kingdom
Has anyone had any experience in bridging Microbroker to Message Broker 6.1.
I understand from various docs ive found on the web that you use the SCADA input node. However, it is not clear on how you subscribe to specific topics. Is it a case that all messages are routed from the SCADA input node, to your compute node? Is there a way of defining which messages topics you are interested in, or do you have to extract what you require?
I know I could create a bridge from the Microbroker to MQ (which I have done), but I am looking at doing this without having the added processing required to write to and read from a queue.
Does anyone have any examples on how to do this using SCADA? The examples on the web are not very explicit and do not show in any great detail.
Posted: Fri Nov 06, 2009 8:09 am Post subject: Fixed the issues
Newbie
Joined: 19 Oct 2009 Posts: 4 Location: United Kingdom
Managed to fix this issue.
Basically the Scada Node acts like any other input node. I just needed to change the 'Message Domain'. I tried it using 'BLOB', and published a message to it.
The message was routed through and output to a FileOutput node. I ensured I had nodes attached to the 'Catch' and 'Failure' points as well as the out. This prevents an infinite loop occurring in the node apparently.
I understand from documentation that the topic which it is published to, can be extracted from the header.
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