The field attribute character also indicates one of the following field types, which indicates allowable input:
Field Type |
Description |
Alphanumeric * |
All characters are allowed. |
Alphabetic only |
Uppercase and lowercase letters, comma, period, hyphen, blank, and Dup key are allowed. |
Numeric shift |
Automatic shift for numerics is enabled. |
Numeric only * |
Digits 0-9, comma, period, plus, minus, blank, and Dup key are allowed. |
Digits only |
Digits 0-9 and Dup key are allowed. |
Magnetic stripe reader |
Data can be entered only via a magnetic stripe reader. |
Signed numeric |
Digits 0-9, plus, minus, and Dup key are allowed. |
* These are the only valid field types for a 3270 session.