TYPE

TYPE is used to define the map type. If TYPE =
MAP – Physical map is created
DSECT – Symbolic map is created
&&SYSPARM – Physical & Symbolic, both are created
FINAL – To indicate the end of a mapset coding.

MODE

MODE is used to indicate input/output operations. IF MODE =
IN – For an input map only
OUT – For an output map only
INOUT For both input & output map

LANG

LANG = ASM/COBOL/PL1
It decides the language of the DSECT structure, for copying into the application program.

STORAGE

If STORAGE =
AUTO – To acquire a separate symbolic map area for each mapset
BASE – To have the same storage base for the symbolic maps of from more than one mapset

CTRL

CRTL is used to define the device control requests. If CTRL =
FREEKB – To unlock the keyboard
FRSET – To reset MDT to zero status
ALARM – To set an alarm at screen display time
PRINT – To indicate the mapset to be sent to the printer.

TERM

TERM = type ensures device independence,required if other than 3270 terminal is being used.

TIOAPFX

TIOAPFX = YES/NO
YES – To reserve the prefix space (12 bytes) for BMS commands to access TIOA properly. Required for the CICS command level.

SIZE

SIZE = (Line,Column)
This parameter gives the size of the map. BMS allows us to build a screen using several maps, and this parameter becomes important when we are using more than one maps in a single mapset.

LINE

It indicates the starting line number of the map.

COLUMN

It indicates the starting column number of the map.

JUSTIFY

It is used to specify the entire map or the map fields to be left or right justified.

CTRL

CRTL is used to define the device control requests. If CTRL =
FREEKB – To unlock the keyboard
FRSET – To reset MDT to zero status
ALARM – To set an alarm at screen display time
PRINT – To indicate the map to be sent to the printer

TIOAPFX

TIOAPFX = YES/NO

YES – To reserve the prefix space (12 bytes) for BMS commands to access TIOA properly. Required for the CICS command level.

POS

This is the position on the screen where the field should appear. A field starts with its attribute byte, so if you code POS = (1,1), the attribute byte for that field is on line 1 in column 1, and the actual data starts in column 2.

LENGTH

This is the length of the field, not counting the attribute byte.

INITIAL

This is the character data for an output field. We use this to specify labels and titles for the screen and keep them independent of the program. For the first field in the menu screen, for example, we will code: INITIAL = ‘MENU’.

JUSTIFY

It is used to specify the entire map or the map fields to be left or right justified.

ATTRB

ATTRB = (ASKIP/PROT/UNPROT, NUM, BRT/NORM/DRK, IC, FSET) It describes the attributes of the field.

ASKIP – Autoskip. Data cannot be entered in this field. The cursor skips to the next field.

PROT – Protected field. Data cannot be entered into this field. If data is entered, it will cause the input-inhibit status.

UNPROT – Unprotected field. Data can be entered and this is used for all input fields.

NUM – Numeric field. Only numbers (0 to 9) and special characters(‘.’ and ‘-‘) are allowed.

BRT – Bright display of a field (highlight).

NORM – Normal display.

DRK – Dark display.

IC – Insert cursor. The cursor will be positioned in this field. In case, IC is specified more than once, the cursor is placed in the last field.

FSET – Field set. MDT is set on so that the field data is to be sent from the terminal to the host computer regardless of whether the field is actually modified by the user.

PICIN

PICIN applies to the data field which is used as input like PICIN = 9(8).

PICOUT

PICIN applies to the data field which is used as output like PICOUT = Z(8).