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<== Date ==> <== Thread ==>

Subject: Wait for pv to connect sscan
From: l123173 <l123173@163.com>
To: tech-talk <tech-talk@aps.anl.gov>
Date: Tue, 1 May 2018 23:35:11 +0800 (CST)
Hi Mark and all,
     I used sscan-2-10-1( 2D scan ), base 3.15.
     I always got "Waiting for pv's to connect" after I clicked the "scan" in scan1.
     But it work fine when I disable the saveData in st.cmd with the same setting. It could do the scan 1 and scan 2.
     So I think the error was saveData. But saveData should be easy. The error was "I/O error, can't open file" though I am root.
    
     The following was some strange message I got.
      
     When I set the parameters, I got these message in st.cmd.
*******************************
dbpf("xxx:scan1.R1PV", "xxx:m1.RBV")
DBR_STRING:          "xxx:m1.RBV"       
dbpf("xxx:scan1.P1PV", "xxx:m1.VAL")
DBR_STRING:          "xxx:m1.VAL"       
dbpf("xxx:scan1.T1PV", "xxx:m2.EXSC")
DBR_STRING:          "xxx:m2.EXSC"      
dbpf("xxx:scan2.R1PV", "xxx:m2.RBV")
DBR_STRING:          "xxx:m2.RBV"       
dbpf("xxx:scan2.P1PV", "xxx:m2.VAL")
DBR_STRING:          "xxx:m2.VAL"       
dbpf("xxx:scan2.T1PV", "XSPRESS3-EXAMPLE:HDF5:Capture")
xxx:scan2:special:connect already in progress for link T1.  Waiting...        (The sentence came out sometime, 50%)
DBR_STRING:          "XSPRESS3-EXAMPLE:HDF5:Capture"        
dbpf("xxx:scan2.T2PV", "XSPRESS3-EXAMPLE:Acquire")
DBR_STRING:          "XSPRESS3-EXAMPLE:Acquire"   
motorUtilInit('xxx:')
saveData_Init(saveData.req, 'P=xxx:')
saveData: message queue created
saveData:maxAllowedRetries = 10
saveData:retryWaitInSecs = 15
seq &scanProgress, 'S=xxx:, P=xxx:scanProgress:'
sevr=info Sequencer release 2.2.4, compiled Sun Apr 15 20:26:45 2018
sevr=info Spawning sequencer program "scanProgress", thread 0x26a0de0: "scanProgress"
# write all the PV names to a local file
dbl > dbl-all.txt
# Report  states of database CA links
#dbcar(*,1)
# print the time our boot was finished
date
2018/05/01 23:01:14.875178
asynSetTraceIOMask("L0",0,2)
asynSetTraceMask("L0",0,9)
sevr=info scanProgress[0]: all channels connected & received 1st monitor
"
    Source File: ../cac.cpp line 1298
    Current Time: Tue May 01 2018 23:01:14.903656005
..................................................................
CA.Client.Exception...............................................
    Warning: "Identical process variable names on multiple servers"
    Context: "Channel: "XSPRESS3-EXAMPLE:HDF5:Capture", Connecting to: 192.168.0.1:5064, Ignored: 192.168.1.106:5064"
    Source File: ../cac.cpp line 1298
    Current Time: Tue May 01 2018 23:01:14.902491275
..................................................................
CA.Client.Exception...............................................
    Warning: "Identical process variable names on multiple servers"
    Context: "Channel: "XSPRESS3-EXAMPLE:Acquire", Connecting to:



Then I click the stop button to stop. I saw these.
It should not be like these. I do have the permission since I am always root.
**************************************
saveData: ...will retry in 15 seconds
saveData:writeScanRecCompleted(xxx:scan1): can't open data file!!
saveData: ...will retry in 15 seconds
saveData:writeScanRecCompleted(xxx:scan1): can't open data file!!
saveData: ...will retry in 15 seconds
saveData: too many retries; abandoning data from scan 'xxx:scan1'
saveData: *******************************************


Regards,
Li xing


 


Replies:
Re: Wait for pv to connect sscan Mooney, Tim M.

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