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Subject: Re: ai records: pool (SCAN) VS pull (FLNK) VS push (some examples)
From: Benoit <benpaka.spam@gmail.com>
To: Mark Rivers <rivers@cars.uchicago.edu>
Cc: EPICS mailing list <tech-talk@aps.anl.gov>
Date: Tue, 10 Dec 2013 20:22:38 +0100
Hi Mark,

I did put  field(FLNK,"$(user):AllInterlocksRdbk.PROC PP")
I still have my PV with:  INVALID, UDF_ALARM even after setting correctly the CtrlManualCmd
I don't understand why!

$(user):AllInterlocksRdbk in the database, only "$(user):AllInterlocks.
In my previous mail I got rid off the Rdbk Suffix by doing a bad copy paste.

Do you have a good tutorial to use the FLNK field in various case.

Regards,



--
Benoit RAT
www.neub.co.nr


On Tue, Dec 10, 2013 at 7:30 PM, Mark Rivers <rivers@cars.uchicago.edu> wrote:

Is the database you sent incomplete?  You have

 

            field(FLNK,"$(user):AllInterlocksRdbk") #or field(FLNK,"$(user):AllInterlocksRdbk.VAL PP") 

 

but I don’t see the record $(user):AllInterlocksRdbk in the database, only "$(user):AllInterlocks.

 

Also, if you are going to put a field in a FLNK it should not be the .VAL field, but rather the .PROC field, i.e.

 

    field(FLNK,"$(user):AllInterlocksRdbk.PRO PP") 

 

 

From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of Benoit
Sent: Tuesday, December 10, 2013 11:30 AM
To: EPICS mailing list
Subject: ai records: pool (SCAN) VS pull (FLNK) VS push (some examples)

 

Hi everybody,

 

I've been looking to obtain concrete examples of the following post: http://www.aps.anl.gov/epics/tech-talk/2012/msg02557.php in order to retrieve my data

 

I think I get it well for 

  • pool: scan every 5 seconds the value of TempActRdbk
  • push: getting the value of CtrlManualStat read register when CtrlManualCmd write register is updated (this is done in the asynDriver).

However, I don't manage to use the forward link so that when I write in  CtrlManualCmd I want to obtain an updated value of AllInterlocks.

Can someone tell me how to perform, and what I am doing wrong in the use of FLNK:

 

 

record(bo, "$(user):CtrlManualCmd")
{
        field(DTYP ,"asynInt32")
        field(OUT  ,"@asyn($(PORT),$(ADDR),$(TIMEOUT))Ctrl_Manual")
}
record(bi, "$(user):CtrlManualStat")
{
        field(DTYP ,"asynInt32")
        field(INP  ,"@asyn($(PORT),$(ADDR),$(TIMEOUT))Ctrl_Manual")
        field(SCAN ,"I/O Intr")
        field(FLNK,"$(user):AllInterlocksRdbk") #or field(FLNK,"$(user):AllInterlocksRdbk.VAL PP") 
}
record(ai, "$(user):AllInterlocks")
{
        field(DTYP ,"asynInt32")
        field(INP  ,"@asyn($(PORT),$(ADDR),$(TIMEOUT))Ilk_All")
        field(SCAN ,"I/O Intr")
}
record(ai, "$(user):TempActRdbk")
{
        field(DTYP ,"asynInt32")
        field(INP  ,"@asyn($(PORT),$(ADDR),$(TIMEOUT))temp_act")
        field(SCAN ,"5 second")
}


--
Benoit RAT



References:
ai records: pool (SCAN) VS pull (FLNK) VS push (some examples) Benoit
RE: ai records: pool (SCAN) VS pull (FLNK) VS push (some examples) Mark Rivers

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