Maximum and default specifications for AREA and SEG

Table 1 lists the maximum and default specifications for AREA and SEG.
Table 1. Maximum and default specifications for AREA and SEG
Unit Full capability AREA size Status display AREA size Screen size SEG default
Max Default Max Default
3270-X See note 2
3277-2 19 14 23 11,12 24x80 9
3278-2 20 14 24 12,12 24x80 10
3278-2A 16 14 20 10,10 20x80 8
3278-3 28 14 32 16,16 32x80 14
3278-4 39 14 43 21,22 43x80 19
3278-5 24 14 27 13,14 27x132 12
3279-2A 20 14 24 12,12 24x80 10
3279-2B 20 14 24 12,12 24x80 10
3279-2C 16 14 20 10,10 20x80 8
3279-2X 20 14 24 12,12 24x80 10
3279-3A 28 14 32 16,16 32x80 14
3279-3B 28 14 32 16,16 32x80 14
3279-3X 28 14 32 16,16 32x80 14
3279-S2B 20 14 24 12,12 24x80 10
3279-S3G 28 14 32 16,16 32x80 14
3290 20 14 24 12,12 24x80 10
3290 24 14 27 13,14 27x132 12
3290 27 14 31 15,16 31x80 13
3290 28 14 31 15,16 31x160 14
3290 28 14 32 16,16 32x80 14
3290 39 14 43 21,22 43x80 19
3290 46 14 50 25,25 50x106 23
3290 58 14 62 31,31 62x80 29
3290 59 14 62 31,31 62x160 28
SMCS See note 1
HMCS 39 14 N/A N/A 43x80 19
Notes on :
  1. SMCS screen size requires a minimum screen size of 24 rows x 80 columns to display the SMCS Console Selection Screen. SMCS consoles that do not have a predefined LU should be at least 24x80.
  2. 3270–X and SMCS values are calculated dynamically as follows:
    Full Capability AREA Size
    Max
    #rows - #rows of entry area
    Default
    14 or the Max Area, whichever is smaller.
    Status Display AREA Size
    Max
    #rows
    Default
    2 areas, each is #rows/2. (For odd screen sizes, the B area is one row larger so that it takes up the entire screen.)
    Screen Size
    See SMCS Screen Size Note
    SEG Default
    (#rows - (3 or 4))/2, where 3 or 4 depends on the number of lines in the entry area.
    Message Stream
    #rows - 1