LXE 1280 Reference Guide
Form Message Header
197
E-SW-LDSPLUSRG-G
LDS Plus Reference Guide
Form Message Header
Please refer to Chapter 4, “Messages”, for information regarding the form message header of a
form.
form.
Second Character
The second character of a form determines the type of input device that the operator can use to
enter data on a form.
enter data on a form.
Typical Characters
Effect on DOS Terminal
ASCII Code
A, E, I, M, Q, U, Y
Activates aux. input device
xxxxx01
B, F, J, N, R, V, Z
Activates a barcode device
xxxxx10
C, G, K, O, S, W
Activates both barcode and
aux. input device
aux. input device
xxxxx11
D, H, L, P, T, X
Activates neither barcode
nor aux. input device
(Keyboard entry only)
nor aux. input device
(Keyboard entry only)
xxxxx00
The second character serves as a second Forms Identifier and also performs other functions based
upon the two least significant bits (LSB’s) of the ASCII code for the character. See section titled
“ASCII/HEX Character Bit Patterns.”
upon the two least significant bits (LSB’s) of the ASCII code for the character. See section titled
“ASCII/HEX Character Bit Patterns.”
The “Typical Characters” are documented in case Legacy host applications use a character other
than A, B, C or D. Using E, I, M, Q, U, and Y are exact equivalents to using A -- therefore, it is
best to use A whenever possible.
than A, B, C or D. Using E, I, M, Q, U, and Y are exact equivalents to using A -- therefore, it is
best to use A whenever possible.