Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Tue, 11 Sep 2018 10:00:01 +0200

Hello Debbie,

It would be helpful to know the data your device is sending.

Dirk

On 11.09.2018 09:49, [email protected] 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

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System