RE: A db question about aiExample

["Owens, PH \(Peter\)" <peter.owens@stfc.ac.uk>]

Use a third record to calculate the increment:

 

Set

$(user):calcExample.INPC = $(user):incrExample PP

...

record calc, "$(user):calcExample")
{
field(VAL, "1")
field(FLNK, "$(user):aiExample")
field(CALC, "(A<=0)?1:((A>=9)?-1:B)")
field(INPA, "$(user):aiExample.VAL")
field(INPB, "$(user):incrExample.VAL")
}

-----Original Message-----
From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov]On Behalf Of marco_hair
Sent: 20 November 2008 10:57
To: tech-talk
Subject: A db question about aiExample

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

---

[广告] 金秋最关注楼盘-房不胜房