The following attributes are defined by the field attribute character:
| Attribute | Description | 
| protected/unprotected | Indicates whether the field is protected. A protected field cannot be modified (written to) by the user. | 
| modified/unmodified | Indicates whether the field was modified (written) since the screen was initially transmitted. | 
| display/nondisplay | Indicates whether the field is displayed on a 3270/5250 terminal. | 
| intensified/normal | Indicates the brightness of the characters in the field. |