User`s guide

cxvi Contents
Field Attributes
3270 field attributes
Bit Position Meaning
0-1 Both set to 1 (field attribute byte)
2 Unprotected/protected
0 = Unprotected data field
1 = Protected data field
3 Alpha/numeric
0 = Alphanumeric data
1 = Numeric data only
4-5 I/SPD
00 = Normal intensity, pen not detectable
01 = Normal intensity, pen detectable
10 = High intensity, pen detectable
11 = Non-display, pen not detectable
6 Reserved
7 MDT (Modified Data Tag)
0 = Field has not been modified
1 = Field has been modified