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Table of Contents

Table of Contents

Overview and

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operation  (this doc is still a bit under construction)

  • iocConsole is an EPICS Extension that creates a persistent console session into an IOC, EIOC or SIOC which can be accessed by multiple users simultaneously from their workstations. The session can also optionally log to a file: $IOC_DATA/iocname/screenlog.0.
  • iocConsole connects to RTEMS or other "hard" IOCs by telnet-ing to the IOC's terminal server port. 
  • iocConsole starts up a soft IOC process, and establishes a console session for that process.
  • iocConsole uses the Linux screen program (http://www.slac.stanford.edu/grp/cd/soft/epics/extensions/iocConsole/screen.1.html) to create and manage the console sessions and logging.

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  • Hard IOC console session starts and connects to the terminal server, but there is to no EPICS prompt or response from the IOC
    looks like this:
    Trying 172.27.68.102...
    Connected to ts-li20-nw02.slac.stanford.edu (172.27.68.102).
    Escape character is '^]'.
    < then no response to a carriage return or other IOC command >
    • Possible causes:
      • the IOC is powered down, or not connected properly to the terminal server
      • the IOC is having hardware or software problems and needs restarting, or other application-specific action
      • the IOC may be incorrectly entered in screeniocs (e.g. wrong port)
      • the terminal server port may need resetting.
    • Things to try:
      • check screeniocs to make sure the data for your IOC are correct
      • check to make sure the IOC and terminal server are up, and connected properly to the network (ping, etc.)
      • try resetting the terminal server port for the IOC
        iocTSmgr iocname
        (you must be logged in as iocegr or fiocegr to run iocTSmgr)
      • Reboot or power cycle your IOC

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