I was making a list of what makes a 522 abend and I came up with this, and I 
ask, is it correct?

The number of seconds until a job will cancel with timeout is calculated by 
SWTL - Number of Seconds Idle.
 There are three values any one of which can disable 522 timeouts:
  1) The ASCBTOFF bit in the ASCBRCTF is set
  2) The SWTL contains the magic number x'0D286880'
  3) The JSTL is 86400 seconds (Equivalent to TIME=1440 on Job card)

None of these include any system exits which I assume would only influence one 
of the 3 and not do anything outside of those 3.

Kind regards,
Lindy




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