Re: 回复：Re: No reply from device using asyn+streamdevice

[Dirk Zimoch <dirk.zimoch@psi.ch>]

I will test your case, but have you considered using a mbbiDirect record 
with a %b format? (Assuming the digits can be 0 or 1)
Also if the device sends data automatically without being asked, SCAN 
"I/O Intr" should work better than "5 second".
record(mbbiDirect,"Va")
{
  field(SCAN,"I/O Intr")
  field(DTYP,"stream")
  field(INP, "@devLeak.proto get $(Port) $(Addr)")
}

get { in "a:%b"; }

In that case the bits will show up in Va.B0 ... Va.B7. Of course you can 
put them into individual records if required:
record(bi, "Va1")
{
  field(INP, "Va.B0 CP")
  field(ZNAM, "OK")
  field(ONAM, "Alarm")
  field(OSV,  "MAJOR")
}
...



On 12.09.2018 02:53, fatimah1129@sina.com wrote:
> The data uploaded by the underlying device is a:00000000; if Va1 is 
> alarmed, the uploaded data is a:00000001
> ----- 原始邮件 -----
> 发件人：Dirk Zimoch <dirk.zimoch@psi.ch>
> 收件人：<fatimah1129@sina.com>, rivers <rivers@cars.uchicago.edu>, 
> kasemirk <kasemirk@ornl.gov>, tech-talk <tech-talk@aps.anl.gov>
> 主题：Re: No reply from device using asyn+streamdevice
> 日期：2018年09月11日 16点00分
>
>
> Hello Debbie,
> It would be helpful to know the data your device is sending.
> Dirk
> On 11.09.2018 09:49, fatimah1129@sina.com wrote:
>  > Hi everyone，
>  > An IOC will have a device connected via Asyn+StreamDevice. The equipment
>  > is self-developed. The protocol is very simple,and the data is
>  > automatically uploaded. IOC compilation has no problems. But only one PV
>  > variable has a return value.
>  >
>  >     The protocol file is as follows：
>  >       Terminator = CR;
>  > get {
>  >                in
>  > 
>   "%*c:%(\$8.VAL)c%(\$7.VAL)c%(\$6.VAL)c%(\$5.VAL)c%(\$4.VAL)c%(\$3.VAL)c%(\$2.VAL)c%c";
>  >
>  >     }
>  >
>  >
>  > The db file is as follows：
>  >
>  >        record(stringin,"Va1")
>  >       {
>  >           field(SCAN,"5 second")
>  >           field(DTYP,"stream")
>  >           field(INP, "@devLeak.proto get(a,Va8,Va7,Va6,Va5,Va4,Va3,Va2)
>  > $(Port) $(Addr)")
>  >       }
>  >
>  >       record(stringin,"Va2")
>  >      {
>  >       }
>  >
>  >      record(stringin,"Va3")
>  >     {
>  >      }
>  >
>  >      record(stringin,"Va4")
>  >     {
>  >      }
>  >
>  >     record(stringin,"Va5")
>  >    {
>  >     }
>  >
>  >     record(stringin,"Va6")
>  >    {
>  >     }
>  >
>  >     record(stringin,"Va7")
>  >   {
>  >    }
>  >
>  >    record(stringin,"Va8")
>  >   {
>  >    }
>  >
>  > During the test, only Va1 has a return value, but sometimes the return
>  > value of Va1 is reflected in Va3. Test record is as follows：
>  > [root@localhost devLeak]# camonitor Va1
>  > Va1                            2018-09-11 08:58:08.420435 0
>  > Va1                            2018-09-11 09:46:39.943368 *** 
> disconnected
>  > CA.Client.Exception...............................................
>  >     Warning: "Virtual circuit disconnect"
>  >     Context: "localhost:5064"
>  >     Source File: ../cac.cpp line 1214
>  >     Current Time: Tue Sep 11 2018 09:46:39.943325761
>  > ..................................................................
>  > Va1                            2018-09-11 09:47:16.571558 0
>  > Va1                            2018-09-11 09:52:26.576883 1
>  > Va1                            2018-09-11 10:12:26.598784 0
>  >
>  >
>  > 
> --------------------------------------------------------------------------------------------------
>  >
>  >
>  > [root@localhost devLeak]# camonitor Va3
>  > Va3                            2018-09-11 08:58:23.420664 0
>  > Va3                            2018-09-11 09:02:03.424510 1
>  > Va3                            2018-09-11 09:02:33.425080 0
>  > Va3                            2018-09-11 09:46:39.943488 *** 
> disconnected
>  > CA.Client.Exception...............................................
>  >     Warning: "Virtual circuit disconnect"
>  >     Context: "localhost:5064"
>  >     Source File: ../cac.cpp line 1214
>  >     Current Time: Tue Sep 11 2018 09:46:39.943456337
>  > ..................................................................
>  > Va3                            <undefined>  UDF INVALID
>  > Va3                            2018-09-11 09:47:16.571506 0
>  >
>  > 
> --------------------------------------------------------------------------------------------------
>  >
>  >
>  > [root@localhost devLeak]# camoitor Va6
>  > bash: camoitor: command not found
>  > [root@localhost devLeak]# camonitor Va6
>  > Va6                            2018-09-11 08:58:48.421098 0
>  > Va6                            2018-09-11 09:46:39.943463 *** 
> disconnected
>  > CA.Client.Exception...............................................
>  >     Warning: "Virtual circuit disconnect"
>  >     Context: "localhost:5064"
>  >     Source File: ../cac.cpp line 1214
>  >     Current Time: Tue Sep 11 2018 09:46:39.943431255
>  > ..................................................................
>  > Va6                            2018-09-11 09:47:21.571481 0
>  >
>  >
>  > Since there are no compilation errors or warnings, I can't find the
>  > problem.
>  >
>  > Regards, Debbie，IMP epics base R3.14.12.2 stream 2.6 asyn 4.30 linux-x86
>  >
>  >