Справочное Руководство для LXE 1280

132 

Form Messages 

LDS Plus Reference Guide 

E-SW-LDSPLUSRG-G 

The third character of the form identifies the message as a form to the DOS terminal. 

The third character of a form must be one of the following two characters or the contents of the 
form buffer will be deleted. 

] - right square bracket (ASCII 5D Hex) 
# - number symbol (ASCII 23 Hex) 

For example: 

<02SaAB#DTax code_ _ _ _ Model _ _ _ _ C

R

L

F

 

D sets the automatic transfer buffer length. 

Use the control characters q, s, or w to change the beep pattern with a form message. This control 
character is case-sensitive. 

By default, errors are accompanied by three beeps -- any non-error is accompanied by one beep. 
For example, a form sent to the terminal causes the terminal to beep once when the form arrives in 
the computer. 

Refer to “Control Character (CTRL)”, documented previously in this chapter, for the full Beep 
Pattern Characters chart. 

See also Chapter 5, “Expanded Functions”.  Many expanded functions generate terminal beeps. 

To change the automatic transmit buffer length and the beep pattern in the same message, you 
must use the control character q for the beep pattern change and the number symbol # as the third 
character of the form for the buffer length change. 

For example: 

<03SqCAB#APart No _ _ _ _ _ _ _ _

C

R

L

F

 

where 

<03 is a message from terminal 03. 

S indicates it is a form message from the host to terminal E3.  

q is one control character that sets a beep pattern. 

C is the beep pattern character that sets the beep pattern to three short beeps. 

AB is the form number, as assigned by the host computer or contained in a stored 
form. 

#A indicates an auto transmit buffer length change to 8 characters. The DOS terminal 
automatically transmits when a barcode or auxiliary input fills or exceeds the 8

th

 

character position.