Experimental Physics and
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<== Date ==>		<== Thread ==>

Subject:	Re: A db question about aiExample
From:	Ned Arnold <[email protected]>
To:	marco_hair <[email protected]>
Cc:	tech-talk <[email protected]>
Date:	Thu, 20 Nov 2008 08:49:37 -0600

Geyang -

Changing the definition of the calc record to this (only the CALC and INPB field are different) will give you the desired result:

record(calc, "$(user):calcExample")

{

field(DESC, "Counter")

field(SCAN,"1 second")

field(FLNK, "$(user):aiExample")

field(CALC, "A-B>0?A=9?8:A+1:A=0?1:A-1")

field(INPA, "$(user):calcExample.VAL NPP NMS")

field(INPB, "$(user):calcExample.LA NPP NMS")

field(EGU, "Counts")

field(HOPR, "10")

field(HIHI, "8")

field(HIGH, "6")

field(LOW, "4")

field(LOLO, "2")

field(HHSV, "MAJOR")

field(HSV, "MINOR")

field(LSV, "MINOR")

field(LLSV, "MAJOR")

}

Ned

On Nov 20, 2008, at 4:57 AM, marco_hair wrote:

Dear all:

  in the aiExample.db coming with soft ioc template,
record(ai, "$(user):aiExample")
{
field(DESC, "Analog input")
field(INP, "$(user):calcExample.VAL  NPP NMS")
field(EGUF, "10")
field(EGU, "Counts")
field(HOPR, "10")
field(LOPR, "0")
field(HIHI, "8")
field(HIGH, "6")
field(LOW, "4")
field(LOLO, "2")
field(HHSV, "MAJOR")
field(HSV, "MINOR")
field(LSV, "MINOR")
field(LLSV, "MAJOR")
}
record(calc, "$(user):calcExample")
{
field(DESC, "Counter")
field(SCAN,"1 second")
field(FLNK, "$(user):aiExample")
field(CALC, "(A<B)?(A+C):D")
field(INPA, "$(user):calcExample.VAL  NPP NMS")
field(INPB, "9")
field(INPC, "1")
field(INPD, "0")
field(EGU, "Counts")
field(HOPR, "10")
field(HIHI, "8")
field(HIGH, "6")
field(LOW, "4")
field(LOLO, "2")
field(HHSV, "MAJOR")
field(HSV, "MINOR")
field(LSV, "MINOR")
field(LLSV, "MAJOR")
}
the ai value will change from 0-9 and then loop from 0 again.
if I want to generate the value from 0-9, then decrease it, such as 9-0. That is, the value increase from 0-9, then decrease from 9-0 one by one, how can I written it?
Thanks a lot for your help.

Best wishes
Geyang 2008/11/20

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Replies:: Re: Re: A db question about aiExample Silver

References:: A db question about aiExample marco_hair

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ANJ, 02 Sep 2010

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System