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Subject: PV in PCAS can not be archived by Channel Archiver
From: "Zhang Yuliang" <zhangyl@ihep.ac.cn>
To: "johill" <johill@lanl.gov>, "tech-talk" <tech-talk@aps.anl.gov>
Date: Wed, 9 Nov 2011 21:13:46 +0800
Hi Jeff,
 
I am encountering a confused problem about archiving PV provided by a PCAS.  The value of pv can archive once and only once, and after that although the value of pv has changed, there is only one value in the channel archiver. It seems that the other values are discarded, and I check the stutus of the ca connetion, it is ok.
 
The EPICS base used by the PCAS is 3.14.8.2, I want to know whether the pv of pcas can archived by Channel Archiver. The following are ca-test  [pv] outputs:
 
[zhangyl@timinglinux1 ~]$ ca_test IPV1_REC
name:   IPV1_REC
native type:    DBR_FLOAT
native count:   1
DBR_STRING      99
DBR_SHORT       99
DBR_FLOAT       99.0000
DBR_ENUM        99
DBR_CHAR        99
DBR_LONG        99
DBR_DOUBLE      99.0000
DBR_STS_STRING   3  2   Value: 99
DBR_STS_SHORT    3  2   Value: 99
DBR_STS_FLOAT    3  2   Value: 99.0000
DBR_STS_ENUM     3  2   Value: 99
DBR_STS_CHAR     3  2   Value: 99
DBR_STS_LONG     3  2   Value: 99
DBR_STS_DOUBLE   3  2   Value: 99.0000
DBR_TIME_STRING  3  2   TimeStamp: 2011/11/09 17:15:20.990038   Value: 99
DBR_TIME_SHORT   3  2   TimeStamp: 2011/11/09 17:15:20.990038   Value: 99
DBR_TIME_FLOAT   3  2   TimeStamp: 2011/11/09 17:15:20.990038   Value: 99.0000
DBR_TIME_ENUM    3  2   TimeStamp: 2011/11/09 17:15:20.990038   Value: 99
DBR_TIME_CHAR    3  2   TimeStamp: 2011/11/09 17:15:20.990038   Value: 99
DBR_TIME_LONG    3  2   TimeStamp: 2011/11/09 17:15:20.990038   Value: 99
DBR_TIME_DOUBLE  3  2   TimeStamp: 2011/11/09 17:15:20.990038   Value: 99.0000
DBR_GR_STRING    3  2   Value: 99
DBR_GR_SHORT     3  2
               0        0       90       85       15       10   Value: 99
DBR_GR_FLOAT     3  2    0
           0.000    0.000   90.000   85.000   15.000   10.000   Value: 99.0000
DBR_GR_ENUM     Channel read request failed
DBR_GR_CHAR      3  2
               0        0       90       85       15       10   Value: 99
DBR_GR_LONG      3  2
               0        0       90       85       15       10   Value: 99
DBR_GR_DOUBLE    3  2    0
           0.000    0.000   90.000   85.000   15.000   10.000   Value: 99.0000
DBR_CTRL_STRING  3  2   Value: 99
DBR_CTRL_SHORT   3  2
               0        0       90       85       15       10        0        0 Value: 99
DBR_CTRL_FLOAT   3  2    0
           0.000    0.000   90.000   85.000   15.000   10.000    0.000    0.000 Value: 99.0000
DBR_CTRL_ENUM   Channel read request failed
DBR_CTRL_CHAR    3  2
               0        0       90       85       15       10        0        0 Value:   99
DBR_CTRL_LONG    3  2
               0        0       90       85       15       10        0        0 Value: 99
DBR_CTRL_DOUBLE  3  2    0
           0.000    0.000   90.000   85.000   15.000   10.000    0.000    0.000 Value: 99.000000
DBR_STSACK_STRING       Channel read request failed
DBR_CLASS_NAME  Channel read request failed
 
I noticed that there are Channel read request failed.
 
Thank you!
 
Zhang Yuliang 
 

Replies:
Re: PV in PCAS can not be archived by Channel Archiver Kasemir, Kay
RE: PV in PCAS can not be archived by Channel Archiver Jeff Hill

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