Experimental Physics and Industrial Control System

Folks,


I have a question about how dbGetLink works.  I have read the Application Developer's Guide (3.15.5) but it is not clear.  Specifically I want to understand how it works under the following conditions:


- Link is an output link

- Link process type is CA

- The output PV resides in another IOC.


Does dbGetLink actually read the value from the other IOC?  It seems like that would be a slow operation, and so would require the record to be asynchronous?  Or does the database put a camonitor on that external record so the link value can be obtained without an actual caget operation?  If so, I cannot find this mentioned in the Application Developer's Guide.  It only describes channel access monitors being set up for input links, not output links.


Thanks,

Mark

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