Experimental Physics and
Industrial Control System

Hey Ray,

we are using an nXDS scroll pump from edwards and controll it via StreamDevice + Asyn via the RS485 interface.

I've attached protocol and database files.

HTH,

Cheers,
Florian

Hello,

Has anyone developed an EPICS interface to the Edwards nXDS scroll pump?

Thank you,

Ray Juras

Oak Ridge National Laboratory

email: jurasrc1 at ornl.gov

-- 
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AG der Experimentalphysik I
Dr. Florian Feldbauer
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Universitätsstr. 150
D-44801 Bochum

Office: NB 2/134
Phone:  (+49)234 / 32-23563
Fax:    (+49)234 / 32-14170
https://paluma.ruhr-uni-bochum.de

#############################################
# ###                                   ### #
# ### EPICS Database for                ### #
# ### Edwards nXDS 15i                  ### #
# ###                                   ### #
# ### author: R.Kieser                  ### #
# ###                                   ### #
# ### Ref 1.0; 2014-01-06               ### #
# ###                                   ### #
# ### macros: subsys  PANDA subsystem   ### #
# ###         PORT    Asyn Interface    ### #
#############################################

record (ai, "PANDA:$(subsys):VACUUM:FOREPUMP:Tmom") {
  field (DTYP, "stream")
  field (INP,  "@Edwards_nXDS15i.proto getTemperature $(PORT)")
# field (SCAN, "10 second")
  field (FLNK, "PANDA:$(subsys):VACUUM:FOREPUMP:Mfrequency")
}

record (ai, "PANDA:$(subsys):VACUUM:FOREPUMP:MotorFreqMom") {
  field (DTYP, "stream")
  field (INP,  "@Edwards_nXDS15i.proto getMfrequency(PANDA:$(subsys):VACUUM:FOREPUMP) $(PORT)")
  field (SCAN, "10 second")
  field (FLNK, "PANDA:$(subsys):VACUUM:FOREPUMP:getRunTime")
}

record (mbbiDirect, "PANDA:$(subsys):VACUUM:FOREPUMP:Statusregister1") {
}
record (mbbiDirect, "PANDA:$(subsys):VACUUM:FOREPUMP:Statusregister2") {
}
record (mbbiDirect, "PANDA:$(subsys):VACUUM:FOREPUMP:Warnings") {
}
record (mbbiDirect, "PANDA:$(subsys):VACUUM:FOREPUMP:faultregister") {
}

record (ai, "PANDA:$(subsys):VACUUM:FOREPUMP:getError") {
  field (DTYP, "stream")
  field (INP,  "@Edwards_nXDS15i.proto getError $(PORT)")
  field (PINI, "YES")
}

record (ai, "PANDA:$(subsys):VACUUM:FOREPUMP:getRunTime") {
  field (DTYP, "stream")
  field (INP,  "@Edwards_nXDS15i.proto getRunTime $(PORT)")
# field (SCAN, "300 second")
}

#--------------------------------------------------------------------------------

record (bo , "PANDA:$(subsys):VACUUM:FOREPUMP:Pump") {
  field (DTYP, "stream")
  field (OUT,  "@Edwards_nXDS15i.proto Pump $(PORT)")
  field (ZNAM, "OFF" )
  field (ONAM, "ON" )
}

#################################################
# ###                                       ### #
# ### StreamDevice Protocol for             ### #
# ### Edwards nXDS 15i                      ### #
# ###                                       ### #
# ### author: R.Kieser                      ### #
# ###                                       ### #
# ### Ref 1.0; 2013-12-19                   ### #
#################################################

###################
# ### Globals ### #
###################
Terminator    = CR;
LockTimeout   = 5000;
ReplyTimeout  = 500;
ReadTimeout   = 500;
WriteTimeout  = 300;
ExtraInput    = Ignore;

#####################
# ### Protocols ### #
#####################

getTemperature {
  # get measured pump temperature
  # Example of command:
  # field (INP, "@Edwards_nxDS15i.proto getTemperature $(PORT)") 

  out "?V808";
  in  "=V808 %u";

} 

getMfrequency {
  # get motor frequncy and status words
  # Example of command:
  # field (INP, "@Edwards_nxDS15i.proto getMfrequency(PANDA:$(subsys):VACUUM) $(PORT)") 

  out "?V802";
  in  "=V802 %u;%(\$1:Statusregister1)x;%(\$1:Statusregister2)x;%(\$1:Warnings)x;%(\$1:faulregister)x";
}

getError {
  # get fault history at last trip
  # Example of command:
  # field (INP, "@Edwards_nxDS15i.proto getError(PANDA:$(subsys):VACUUM) $(PORT)") 

  out "?V816";
  in  "=V816 %x;%x;%x;%x";
}

getRunTime {
  # get Total run hours - time pump has run
  # Example of command:
  # field (INP, "@Edwards_nxDS15i.proto getRunTime $(PORT)") 

  out "?V810";
  in  "=V810 %u";
}

#--------------------------------------------------------------------------------

Pump {
  # switch forepump on/off
  # Example of command:
  # field (OUT, "@Edwards_nxDS15i.proto Pump $(PORT)") 

  out "!C802 %u";
  in  "*C802 %*u";

#  @init {
#    out "in_mode_05";
#    in  DC3,"%i";
#  }

}

References:

EPICS interface for Edwards nXDS scroll pump Raymond Juras via Tech-talk

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