Справочное Руководство для LXE 1280

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Message Format 
LDS Plus Reference Guide 
E-SW-LDSPLUSRG-G 
CTRL Characters for Form Messages 
A  form message is a display of characters that allows the operator to enter information into a 
specific field on the DOS terminal. See “Form Messages” later in this chapter. 
Control characters for forced form messages are: 
a, c, g, q, s, w, i, k and o 
See Appendix C, “Code Tables and Character Sets”, for a full listing of LDS Plus control codes 
for form messages. 
CTRL Characters for Non-Form Messages 
non-form message is a message that does not include data input fields. Non-form messages can 
be either inbound or outbound. See “Non-Form Messages” later in this chapter.  
Control characters for forced non-form messages are: 
A, C, G, Q, S, W, I, K, O, and Y 
See Appendix C, “Code Tables and Character Sets”, for a full listing of LDS Plus control codes 
for non-form messages. 
CTRL Characters and the Beep Pattern 
A DOS terminal has a beeper for calling the operator's attention to certain occurrences. The 
beeper is an additional means of communication between the host computer and the DOS terminal 
operator. This communication frees up the operator's eyes to focus on the job without having to 
look at the screen. 
See also Chapter 5, “Expanded Functions”.  Many expanded functions generate terminal beeps. 
Example 
You can set the beep pattern so that it beeps three times for an error message and two times for a 
form message. 
You must select the appropriate control character and a beep pattern character to set the beep 
pattern with a form message or set it with certain expanded functions. 
The following form message illustrates the location of the control character and beep pattern 
character for setting the beep pattern: 
 
   
 
   
q
 is the control character that enables you to set 
the beep pattern with this format message. 
 
   
 
   
C
 is the beep pattern character that sets the 
beep pattern. 
<02S
q
C
AB]Part No:_ _ _ Loc:_ _ _  _ _Qty:_ _ _ _ _C
R
L
F
 
Figure 4-13  Beep Pattern Example 
Control characters 
q
s
,
 and 
w
 all set beeps in forced form messages. Control characters 
Q
S
and 
W
 all set beeps in forced non-form messages.