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<== Date ==> <== Thread ==>
Subject: Re: CA output links not working with PINI=YES?
From: "Johnson, Andrew N. via Tech-talk" <tech-talk at aps.anl.gov>
To: Benjamin Franksen <benjamin.franksen at helmholtz-berlin.de>
Cc: EPICS tech-talk <tech-talk at aps.anl.gov>
Date: Thu, 5 Mar 2020 18:58:37 +0000
Hi Ben,

On Mar 5, 2020, at 12:16 PM, Benjamin Franksen via Tech-talk <tech-talk at aps.anl.gov> wrote:

What we want to do here is write a string to an input link field once at
init time. Link fields can be written to only via CA, which is why we
have to use a CA link.

Do you have to wait until after iocInit to set the value of that input link field? If you could do it beforehand you could load a separate .db file that just sets the link field of that record. You can also use the IOC’s ‘dbpf’ command to write to a link field in your startup script, and the length of that string isn’t limited to 40 characters any more.

Christoph’s original example doesn’t show him writing to a link field, and I’m still a little confused exactly what you’re trying to do. Given the actual complexity of what you’re trying to do (as against the apparent simplicity that you’re wanting) I suspect using a sequence program might be simpler, but more detail of the actual problem might allow us to find a simpler solution.

- Andrew

-- 
Complexity comes for free, Simplicity you have to work for.

Replies:
Re: CA output links not working with PINI=YES? Mooney, Tim M. via Tech-talk
Re: CA output links not working with PINI=YES? Benjamin Franksen via Tech-talk
References:
CA output links not working with PINI=YES? Christoph Schroeder via Tech-talk
Re: CA output links not working with PINI=YES? J. Lewis Muir via Tech-talk
Re: CA output links not working with PINI=YES? Christoph Schroeder via Tech-talk
Re: CA output links not working with PINI=YES? J. Lewis Muir via Tech-talk
Re: CA output links not working with PINI=YES? Ralph Lange via Tech-talk
Re: CA output links not working with PINI=YES? Benjamin Franksen via Tech-talk
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