Environment of CA Lab

CA Lab environment variables

CALAB_NODBG

• Environment variable for redirecting debug window output to a file
• CALAB_NODBG = PATH_NAME_OF_LOG_FILE

CALAB_POLLING

• Environment variable for switching off monitoring of EPICS variables
• Useful to avoid permanent open network ports. (CompactRIO)
• CA Lab checks only if CALAB_POLLING is defined. The value does not matter.
• CALAB_POLLING = TRUE

EPICS environment variables

A good documentation can be found here.

What does Ca Lab library do?

caLab.dll / libCaLab.so (interface between LabVIEW™ and EPICS)

Functions:

• Handles Channel Access activities
• Administrates list of used EPICS variables
• Monitors used EPICS variables
• Buffers Channel Access requests
• Reports events (user events)
• Works with
  • DBR_TIME_STRING
  • DBR_TIME_SHORT
  • DBR_TIME_FLOAT
  • DBR_TIME_ENUM
  • DBR_TIME_CHAR
  • DBR_TIME_LONG
  • DBR_TIME_DOUBLE
  • more info