Fortran Unit Numbers

Abaqus uses the Fortran unit numbers outlined in the table below. Unless noted otherwise, you should not try to write to these Fortran units from user subroutines.

For Abaqus/Standard, you should specify unit numbers 15–18 or unit numbers greater than 100 .

For Abaqus/Explicit, specify units 16–18 or unit numbers greater than 100 ending in 5 to 9, e.g. 105, 268, etc. You cannot write to the.sta file.

See Also
About Execution Procedures

ProductsAbaqus/StandardAbaqus/Explicit

Fortran Unit Numbers

Code Unit Number Description
Abaqus/Standard1 Internal database
  2 Solver file
  6 Printed output (.dat) file (You can write output to this file.)
  7 Message (.msg) file (You can write output to this file.)
  8 Results (.fil) file
  10 Internal database
  12 Restart (.res) file
  19–30 Internal databases (scratch files). Unit numbers 21 and 22 are always written to disk.
  73 Text file containing meshed beam cross-section properties (.bsp)
Code Unit Number Description
Abaqus/Explicit6 Printed output (.log) .
  12 Restart (.res) file
  13 Old restart (.res) file, if applicable
  15 Analysis Preprocessor (.dat or .pre) file
  23 Communications (.023) file
  60 Global package (.pac) file
  61 Global state (.abq) file
  62 Temporary file
  63 Global selected results (.sel) file
  64 Message (.msg) file
  65 Output database (.odb) file
  67 Old package (.pac) file, if import from Abaqus/Explicit
  68 Old state (.abq) file, if import from Abaqus/Explicit
  69 Internal database; temporary file
If domain-parallel 70 Local package (.pac.1) file for CPU #1
  71 Local state (.abq.1) file for CPU #1
  73 Local selected results (.sel.1) file for CPU #1
  80 Local package (.pac.2) file for CPU #2
  81 Local state (.abq.2) file for CPU #2
  83 Local selected results (.sel.2) file for CPU #2
  ... Add three files, incrementing units by 10, for each additional CPU